Running Length Work Patents (Class 118/68)
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Publication number: 20010045185Abstract: An emulsion coater is provided with a framework having a table or work surface for supporting a sheet of material that is to be coated e.g., a sheet of transparent plastic film. A carriage is mounted on the framework for rectilinear movement thereacross parallel to the surface of the sheet to advance a coating applicator across the sheet. A coating dryer is also mounted on the carriage to progressively dry the coating from one end to the other as it is applied. A motor is supported on the framework for moving the carriage forwardly from one end of the sheet to the other. Provision is made for disengaging the coating applicator from the carriage once the coating has been applied and thereafter moving the carriage in a reverse direction across the applied coating to the starting position while optionally continuing to dry the coating.Type: ApplicationFiled: January 29, 2001Publication date: November 29, 2001Inventors: Dennis M. Burgess, William J. Campbell
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Patent number: 6312523Abstract: The present invention relates to methods and apparatus for the controlled placement of a shear-thinnable polymer composition into a moving web. The controlled placement is preferably performed by applying the polymer composition onto a surface of a moving web, shear thinning the composition and placing it into the web, and curing the polymer composition. A preferred apparatus includes one or more process heads that has mounted thereto a rigid knife blade for engagement with the moving web. The knife blade is movable vertically and rotationally. The process head is also movable horizontally along the path of the moving web. A plurality of macro and micro tension zones are established and are monitored for controlling the apparatus and process.Type: GrantFiled: September 27, 1999Date of Patent: November 6, 2001Assignee: Nextec Applications, Inc.Inventors: James Michael Caldwell, George Schmermund
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Patent number: 6264757Abstract: Cold-reduced flat-rolled low carbon steel strip is surface cleansed of iron fines, iron oxide particulate and associated debris which result from cold-reduction operations. Such ferromagnetic contaminants are permanently separated from the strip steel production and finishing system by continuous regenerative processing of alkali cleansing solution, in which contaminants are continuously filtered and concentrated and are flushed from a continuous-flow filtering apparatus for magnetically-assisted separation of such contaminants which are retained for complete and permanent disposal from the system, providing uniform cleansing solution, on a continuing basis, free of large-volume periodic dumping of contaminated solution, and free of interruption of operations for surface cleansing purposes.Type: GrantFiled: July 23, 1998Date of Patent: July 24, 2001Assignee: Wierton Steel CorporationInventors: Brian K. Lester, Kenneth R. Olashuk
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Patent number: 6258165Abstract: In a conveyor system with a radiant heating system, convection is provided with hollow elongated tubes having small holes for providing a gentle air flow toward a workpiece to heat the workpiece with convection and radiation.Type: GrantFiled: November 1, 1996Date of Patent: July 10, 2001Assignee: Speedline Technologies, Inc.Inventor: William A. Cavallaro
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Patent number: 6231670Abstract: A paper web impregnated with a liquid resin and following impregnation is coated with an abrasive particle containing coating mass or composition and then dried before a liquid resin is applied which does not contain the abrasive particles. The web is then finally dried and the resulting paper is particularly suitable as a cover sheet in the hot pressing of laminates since it minimizes wear of the laminate press.Type: GrantFiled: January 14, 2000Date of Patent: May 15, 2001Assignee: Vits Maschinenbau GmbHInventors: Siegfried Fischer, Willi Erkelenz, Ernst Klas, Gisbert Krossa, Udo Unger
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Patent number: 6187094Abstract: A coating device is provided for coating particles of a particulate coating composite consisting of particles of resin and particles of an offset preventing agent having a higher melting point than that of the resin on a paper substrate. A pair of rollers are provided to be contacted with each other for fixing the particulate coating composite on one of surfaces of the paper substrate. The particulate coating composite and the paper substrate are heated from one of the rollers, The heating temperature is set to a value which is higher than a melting point of said resin and lower than a melting point of said offset preventing agent.Type: GrantFiled: June 1, 1998Date of Patent: February 13, 2001Assignee: Pioneer Electronic CorporationInventors: Takanori Mitsuhata, Toshiyuki Miyadera, Yasuo Hosoda, Fumio Matsui
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Patent number: 6177137Abstract: Method and arrangement for coating a web in a film press nip defined by a pair of rotating rolls and through which the web runs and in which a coating agent is applied as a film onto a face of at least one of the rolls and transferred in the nip from the face of the roll(s) onto a respective side of the web to thereby coat the respective side of the web. Steam jets are applied to each side of the web that is being coated to prevent formation of coating-agent mist at a web-outlet side of the nip. The steam jets can be directed from a location after the nip to the web-outlet side of the nip and/or substantially to a point of separation of the web from contact with the roll(s).Type: GrantFiled: October 7, 1997Date of Patent: January 23, 2001Assignee: Valmet CorporationInventor: Rauno Rantanen
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Patent number: 6174368Abstract: The invention is directed to a stationary sliding bar for guiding a paper or cardboard web extends across the entire web width B. Viewed in cross section, the sliding bar has a convex, rounded surface. Due to a relatively high speed of travel of the web, an aerodynamic flotation web forms between the sliding bar and the web.Type: GrantFiled: December 30, 1998Date of Patent: January 16, 2001Assignee: Voith Sulzer Papiermaschinen GmbHInventors: Kurt Eichinger, Walter Humplstötter
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Patent number: 6162489Abstract: An apparatus and method for producing a striped coating on a continuously moving strip are provided, in which the apparatus has a smoothing device including a doctor roll forming a nip with the strip. A stationary partition means is provided, which divides the nip into nip lengths, and upstream of the smoothing device is a means to deposit coating materials on the strip for delivery into the respective nip lengths at predetermined rates. The deposit means maintains a bead of coating material in each nip length and a stripe of coating material is formed on the strip from coating material escaping the respective nip length as the strip passes through the nip.Type: GrantFiled: March 17, 1999Date of Patent: December 19, 2000Assignee: BHP Steel (JLA) Pty LtdInventors: Udo Wolfgang Buecher, Trevor James Horton, Mark John Davies
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Patent number: 6136371Abstract: A method and apparatus for making masking tape is provided. A hot melt or thermoplastic adhesive having no added foaming agents, blowing agents, or surfactants is applied to a paper backing having a moisture content, wherein the adhesive is at a temperature near or below the boiling point of water. The adhesive-coated tape is then advanced to a heating device and heat is applied thereto such that the moisture present in the tape is vaporized and dispersed throughout the adhesive to give the adhesive a foam-like quality.Type: GrantFiled: February 10, 2000Date of Patent: October 24, 2000Assignee: Shurtape Technologies, Inc.Inventors: Muzaffer Fidan, Donald H. Lackey
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Patent number: 6123772Abstract: An apparatus to facilitate tail threading of a paper web and a method of threading the tail of a paper web (1) to be coated through a coating line during startup or web break, in which an edge strip is slit from the web to act as the tail of the web which is first threaded through the line and then widened to the normal width of the web by moving the edge strip slitter. Said edge strip is first guided to a movable support element (12) located after the edge strip slitting point in the travel direction of the web (1) and the strip is supported against said movable support element (12) and is passed supported by said movable support element (12) to the next support element (14).Type: GrantFiled: January 27, 1998Date of Patent: September 26, 2000Assignee: Valmet CorporationInventor: Jorma Kinnunen
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Patent number: 6060124Abstract: There is provided a process of producing a prepreg in which a sheet-shaped fabric material as a reinforcing substrate is continuously provided, a thermosetting resin as a matrix resin in a molten state is supplied to the substrate, and the resin is heated, which process contains the steps of:(a) a first coating step in which the matrix resin is applied to one surface of the reinforcing substrate using a first die coater, and an amount of the matrix resin to be applied is equal to or larger than an amount of the matrix resin which the reinforcing substrate is able to contain in its total void as much as possible,(b) a first heating step in which the reinforcing substrate having the matrix resin is heated by a first non-contact type heating unit so that the matrix resin is impregnated into the inside of the reinforcing substrate, whereby a laminar composite made of the matrix resin and the reinforcing substrate is obtained,(c) a second coating step in which the matrix resin is further applied to at least one ofType: GrantFiled: August 6, 1997Date of Patent: May 9, 2000Assignee: Matsushita Electric Works, Ltd.Inventors: Naoto Ikegawa, Hiroshi Harada, Ryuichi Hamabe
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Patent number: 6051068Abstract: A system for selective treatment of a traveling web, preferably of paper or cardboard, by surface treatment or impregnation in which at least one coater is in the case of web treatment arranged after a dryer group for treatment of the one side of web. At least one further coater for treatment of the other side of the web is arranged before a further dryer group. Noncontact web deflectors are arranged after the coaters and noncontact dryers can be installed retroactively in existing dryer sections.Type: GrantFiled: October 31, 1997Date of Patent: April 18, 2000Assignee: Voith Sulzer Papiermaschinen GmbHInventors: Bernhard Kohl, Stefan Reich, Wilfried Kraft
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Patent number: 6010741Abstract: An apparatus is proposed for controlling the coating thickness of an optical fiber (2) passing sequentially, in that order, from a unit (1) for fabricating the fiber (2) through a cooling unit (3), a coating unit (4) and along a device (5) which determines the diameter of the fiber. The apparatus includes a control element (14) for controlling a control device (15, 16) as a function of the measured diameter in such a way that the thickness of the coating corresponds to a target value, wherein the control device (15, 16) is placed before the coating unit (4) when viewed in the transport direction of the fiber (2), and the control device (15,16) adjusts the temperature of the fiber (2). Also described is a method for controlling the coating thickness.Type: GrantFiled: June 22, 1998Date of Patent: January 4, 2000Assignee: AlcatelInventors: Jurgen Rosenkranz, Hans-Jurgen Lysson, Wilhelm Reiners, Franz-Peter Bartling
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Patent number: 5964946Abstract: A bitumen-based waterproofing membrane is provided with an improved edge for sealing with a contiguous membrane to provide a membrane system with improved waterproofing characteristics. A bitumen-based reinforced membrane sheet is coated with granular material to protect the membrane sheet from ultraviolet rays. However, a section of the membrane sheet is first covered with a piece of protective tape which prevents any granular material from being deposited on the lateral section of exposed bitumen beneath the tape. The membrane sheets are then cut immediately prior to the tape or at the edge of the granular coating and then rolled up. Accordingly, the lateral section of bitumen which is covered by the protective tape is on the innermost part of the rolled-up membrane sheet. During installation, the tape is removed and the exposed bitumen or selvage section is disposed below an adjacent or contiguous membrane. Heat is then applied for an easy and effective seal between two adjacent membrane sheets.Type: GrantFiled: September 5, 1997Date of Patent: October 12, 1999Assignee: Polyglass, S.p.AInventors: Luigi Zanchetta, Romano Zanchetta
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Patent number: 5958137Abstract: The present invention relates to methods and apparatus for the controlled placement of a shear-thinnable polymer composition into a moving web. The controlled placement is preferably performed by applying the polymer composition onto a surface of a moving web, shear thinning the composition and placing it into the web, and curing the polymer composition. A preferred apparatus includes one or more process heads that has mounted thereto a rigid knife blade for engagement with the moving web. The knife blade is movable vertically and rotationally. The process head is also movable horizontally along the path of the moving web. A plurality of macro and micro tension zones are established and are monitored for controlling the apparatus and process.Type: GrantFiled: November 3, 1997Date of Patent: September 28, 1999Assignee: Nextec Applications, Inc.Inventors: James Michael Caldwell, George Schmermund
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Patent number: 5944898Abstract: An apparatus for successive application of two coats of at least one coating medium on one side of a traveling fiber material web includes a rotating backing roll and a first rotating applicator roll having a roll surface. The first applicator roll and the backing roll define a first press nip therebetween. A first applicator assembly is positioned in association with said roll surface for applying a first coating medium to the roll surface. The first applicator assembly and the first applicator roll conjunctively define a first indirect applicator for applying the first coating medium to a first side of the fiber material web. A first drying apparatus is positioned after the first press nip relative to a direction of travel of the fiber material web. The first drying apparatus is positioned in association with the first side of the material web. A second applicator is positioned after the first drying apparatus relative to the direction of travel of the fiber material web.Type: GrantFiled: June 12, 1997Date of Patent: August 31, 1999Assignee: Voith Sulzer Papiermaschinen GmbHInventor: Benjamin Mendez
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Patent number: 5882405Abstract: A method and apparatus for providing a coating on the exterior surfaces of a plurality of elongate members, such as wires, including positioning a plurality of elongate members substantially parallel to each other, coating the exterior surfaces of each member with a coating, removing any excess coating from desired portions of each member and curing the coating to adhere the coating to each member.Type: GrantFiled: August 30, 1996Date of Patent: March 16, 1999Assignee: Illinois Tool Works Inc.Inventors: Frederick A Kish, Parimal M Vadhar, Robert W Wright, William L Gabriel, Geronimo E Lat
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Patent number: 5868838Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: October 14, 1997Date of Patent: February 9, 1999Assignee: Minnesota Mining & Manufacturing CompanyInventors: Frederic Pierre Alain Le Riche, Bernard Raymond Pierre
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Patent number: 5868844Abstract: A self-adhesive part of a hook and loop fastener has a multiplicity of layers of pressure-sensitive adhesive on a back surface of the base material, for adhering the part to a mating substrate. The adhesive is water based and a plurality times of coating and drying processes are repeated so as to have successive coatings. This reduces the overall drying time and efficiency is secured and minimization of requred space can be realized without impairing adhesive function.Type: GrantFiled: July 19, 1996Date of Patent: February 9, 1999Assignee: YKK CorporationInventors: Hisanori Kato, Klaus Steinmetz
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Patent number: 5863330Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: October 14, 1997Date of Patent: January 26, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Frederic Pierre Alain Le Riche, Bernard Raymond Pierre, Gregory Francis Stifter, Mark Steven Vogel
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Patent number: 5851288Abstract: A system and a method for marking a continuous substrate, such as a sheathed wire, are disclosed. An aqueous-based ink is deposited onto a continuous substrate passing through an ink deposition means. A gas, heated by a heater and directed by a blower across the continuous substrate, heats the deposited aqueous-based ink in an amount sufficient to cause a pigment of the aqueous-based ink to bond to the substrate, thereby marking the continuous substrate. In an alternate embodiment, a system for marking a continuous substrate includes an elongate housing which is disposed substantially vertically. A continuous substrate, onto which an aqueous-based ink has been deposited, is directed upwardly through the housing. Gas, which has been heated in a tube disposed within the housing, is directed across the continuous substrate, causing the pigment of the aqueous-based ink to bond to the continuous substrate and thereby mark the continuous substrate.Type: GrantFiled: December 8, 1992Date of Patent: December 22, 1998Assignee: Gem Gravure Company, Inc.Inventors: Robert R. Garand, John L. Banda, Charles Pike
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Patent number: 5851290Abstract: An apparatus for forming a collagen fiber having microparticulates coated on the surface of the fiber and the method for forming the fiber are disclosed.Type: GrantFiled: May 22, 1996Date of Patent: December 22, 1998Assignee: Tissue Engineering, Inc.Inventors: Timothy W. Fofonoff, Eugene Bell
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Patent number: 5830282Abstract: Continuous removal of particulate surface contaminants, for example, from flat-rolled steel work product, is achieved free of unscheduled interruption by continuing control of surface cleaning liquid characteristics which enables continuing recycling. A major portion of the cleaning liquid of a large capacity tank is continuously circulated between surface treatment of the work product and a continuous in-line type cyclone filtering apparatus, with continuous return of filtrate to surface cleansing. A minor portion (about ten percent) of the cleaning liquid capacity is used to concentrate contaminants by continuously purging the filtering apparatus. Concentrated contaminants are directed to a non-magnetic tank structure with sources of magnetic flux mounted along its external surface such that penetrating magnetic flux acts internally to separate and retain contaminants. Decontaminated liquid is returned for continuing surface cleansing.Type: GrantFiled: February 3, 1997Date of Patent: November 3, 1998Assignee: Weirton Steel CorporationInventor: Kenneth R. Olashuk
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Patent number: 5830275Abstract: A coating apparatus comprises a device for applying a liquid coating medium to a moving paper web, and a drying device with at least one web deflecting roll which guides the web with the aid of an air cushion and without the web coming into physical contact with the roll. The roll rotates in the direction of movement of the web. The air cushion flows between the web and the deflection roll in the direction of movement of the web. In the vicinity of the deflection roll at least one non-contact drying device is arranged in the path of the web.Type: GrantFiled: June 27, 1996Date of Patent: November 3, 1998Assignee: Voith Sulzer Papiermaschinen GmbHInventor: Stefan Reich
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Patent number: 5817215Abstract: An apparatus to facilitate tail threading of a paper web and a method of threading the tail of a paper web (1) to be coated through a coating line during startup or web break, in which an edge strip is slit from the web to act as the tail of the web which is first threaded through the line and then widened to the normal width of the web by moving the edge strip slitter. Said edge strip is first guided to a movable support element (12) located after the edge strip slitting point in the travel direction of the web (1) and the strip is supported against said movable support element (12) and is passed supported by said movable support element (12) to the next support element (14).Type: GrantFiled: July 11, 1996Date of Patent: October 6, 1998Assignee: Valmet CorporationInventor: Jorma Kinnunen
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Patent number: 5776258Abstract: In-line flat-rolled steel cleansing and finishing methods and apparatus are disclosed which enable flat-rolled steel, as supplied with surface areas contaminated with iron fines and other debris from gauge reduction operations, to be continuously processed in-line, free of interruptions for cleansing purposes. Continuous-strip methods and apparatus are disclosed which enable in-line continuous-strip cleansing in a manner which decreases iron fines carried by strip surfaces to a desired level while providing for continuous uniform cleansing. Carry-over of iron fines from the cleansing operations so decreases such that iron content of a coating means is decreased resulting in improved corrosion-protection coating. Diminishing iron content in a hot-dip galvanizing bath increases efficiency of aluminum additions and diminishes iron-aluminum dross.Type: GrantFiled: November 22, 1996Date of Patent: July 7, 1998Assignee: Weirton Steel CorporationInventors: Kenneth R. Olashuk, Lester R. Shields
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Patent number: 5755881Abstract: Apparatus for removing an excess amount of a liquid coating material from portions of a moving web following coating of the moving web with the liquid coating material along a coating path. A vacuum head having a suction slot is defined by upstream and downstream walls and adapted to be movably positioned in an inoperative position away from the coating path and in an operative position contacting at least a portion of the liquid coating material on the moving web along the coating path, the downstream wall positively displacing a portion of the liquid coating material when the vacuum head is positioned in the operative position. A suction mechanism is operatively coupled to the vacuum head for establishing a vacuum manifold within the suction slot and communicating with a disposal system. A supply of liquid is operatively coupled to the vacuum head for supplying liquid to the suction slot.Type: GrantFiled: August 19, 1996Date of Patent: May 26, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alfredo Fenoglio, Luigi Gallo, Pietro Prato
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Patent number: 5756156Abstract: A method for producing surface-treated paper, in particular of fine paper, and a dry end of a paper machine that makes use of the method. A paper web that has been dewatered by pressing is dried in the forward dryer section, in which drying energy is applied to the paper web over the entire length of the forward dryer section asymmetrically in the z-direction from the side of the bottom face of the web. This step is carried out by a number of successive groups with single-wire draw that are open downward. In this manner, shrinkage of the web both in the machine direction and in the cross direction is reduced or at least partially prevented, which shrinkage tends to take place when the dry solids content becomes higher. Paper broke is removed from underneath the drying groups that are open downward substantially by the force of gravity onto the broke conveyor placed underneath.Type: GrantFiled: August 29, 1996Date of Patent: May 26, 1998Assignee: Valmet CorporationInventors: Seppo Elijoki, Heikki Ilvespaa, Antti Kuhasalo, Reima Kerttula
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Patent number: 5722151Abstract: An apparatus and a process for making semi-finished products in the form of thin metal bars having a width-gauge ratio of over 60 and a maximum sheet metal gauge tolerance of 2%. A metal profile is fed continuously and upwardly through a pool of melt material having the same composition as the metal profile so as to form a coated metal profile. The metal profile is fed at a rate which would result in a coated metal profile having a thickness of at least three times that of the uncoated metal profile. The coated metal profile is subjected to a smoothing pass between a pair of smoothing rolls when the mean temperature in the crystallized layer of the coated metal profile meets a given condition. The smoothing rolls are adjustably disposed inside a housing at a distance of 0.5 to 5 m from the melt pool surface.Type: GrantFiled: January 25, 1996Date of Patent: March 3, 1998Assignee: Mannesmann AktiengesellschaftInventors: Fritz P. Pleschiutschnigg, Lothar Parschat, Dieter Stalleicken, Tarek El Gammal, Michael Vonderbank, Peter Lorenz Hamacher, Ingo von Hagen, Ulrich Menne, Uwe Schmidt
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Patent number: 5700324Abstract: A manufacturing apparatus of composite filter used as a bead core filter for preventing an electomagneric interference. Particularly, it comprises an element pre-heating section for pre-heating the element through the heaters by conveying vertically the filter element by top and bottom rollers, a coating element coating section for guiding the pre-heated filter element through a guide shaft and passing through a top of the powder disher whereby coating by soaking to the coating agent, and a hardening section for passing in a wave form so as to harden the filter element finished the coating.Type: GrantFiled: November 21, 1995Date of Patent: December 23, 1997Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Chang Sik Kim
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Patent number: 5685909Abstract: Disclosed are a process of and an apparatus for producing paper webs coated on both sides, in particular so-called LWC-papers, in a paper making machine. Firstly, one side of the paper web (1) is coated in a first coating station (8) and then dried. Subsequently, the other side of the paper web (1) is coated in a second coating station (25) and then dried. Each coating station (8, 25) includes an application role (10), an opposing roll (11) and an application unit (13) arranged on the application roll for indirectly coating the paper web. The metering of the coating mass on the application roll (10) takes place by means of a smooth roll doctor. The coated paper web (1) is calendered by means of an on-line calendering unit (60).Type: GrantFiled: March 21, 1996Date of Patent: November 11, 1997Assignees: Voith Sulzer Papiermaschinen GmbH, SCA Graphic Sundsvall ABInventors: Stefan Reich, Bernd Riepenhausen, Martin Kustermann, Michael Trefz, Lars Winter, Irene Wedin, Anette Berg, Fredrik Aksnes
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Patent number: 5674552Abstract: In a method of coating outer surfaces of plural cylinders by a coater having a circular hole on which a coating surface is provided, gas is blown onto the outer surface of the cylinder by a cylindrical blowing device so that the cylinder is positioned coaxially with the circular hole. The gas amount is changed when the cylindrical blowing device blows gas onto a joint portion at which a bottom edge of an upper cylinder contacts with a top edge of a lower cylinder.Type: GrantFiled: May 21, 1996Date of Patent: October 7, 1997Assignee: Konica CorporationInventors: Akira Ohira, Junji Ujihara, Eiichi Kijima
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Patent number: 5667850Abstract: A method is for curing ultraviolet light-curable coatings, inks or adhesives on heat sensitive substrates, wherein the substrates are coated and then passed under ultraviolet light. It includes reducing the temperatures of the substrates while being passed under the ultraviolet light by providing a shield at a location between the ultraviolet light and the substrates. The shield is substantially infrared light reflective and absorptive to prevent infrared light from reaching the substrates and is also substantially ultraviolet light permeable to permit ultraviolet light to reach the substrates. An ultraviolet light curing device utilizing the aforesaid shield is also described for curing ultraviolet light-curable coatings, printings and adhesives on heat sensitive substrates.Type: GrantFiled: October 4, 1996Date of Patent: September 16, 1997Assignee: Gavenco, LLCInventors: Thomas J. Gaven, Dario V. Bravar
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Patent number: 5656326Abstract: In a method for coating a shear-thinning cathode material having a high viscosity on a substrate, the substrate is drawn through a nip defined by a rotating backing roller and a notched bar disposed at a distance from the backing roller. The notched bar is convexly curved in shape in a region prior to the nip and is formed with a notch extending in from the curved region of the notched bar at the nip. The cathode material is supplied onto a first surface of the substrate, the first surface facing the notched bar. At least a portion of the first surface of the substrate is coated with a uniform thickness layer of the cathode material by applying steadily increasing shear forces to the supplied cathode material as the cathode material on the substrate is drawn into the nip and contacts the curved region of the notched bar. The cathode material layer is removed from contact with the notched bar by drawing the cathode material layer coated on the substrate past the notch in the notched bar.Type: GrantFiled: August 24, 1995Date of Patent: August 12, 1997Assignee: Valence Technology, Inc.Inventor: Steven M. Mallinson
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Patent number: 5652022Abstract: An area of an insulating strip (3) which is to remain free of metal is covered by an endless cover strip (4), which rests on the insulating strip (3) and travels along with it at the same speed. Before it enters a vapor deposition zone (5), the cover strip is provided with a film of oil on the side facing the metal evaporator (6) and, after the cover strip (4) has passed through the vapor deposition zone (5) and after the cover strip (4) and the insulating strip (3) have been separated from each other, the oil which has been deposited from the vapor phase onto the cover strip (4) is removed by heating the cover strip (4) with a heater (7) installed in the immediate vicinity of the cover strip (4).Type: GrantFiled: July 22, 1996Date of Patent: July 29, 1997Assignee: Balzers Und Leybold Deutschland Holding AGInventors: Wolfgang Achtner, Thomas Vogt, Gunter Klemm, Detlef Eller
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Patent number: 5641356Abstract: A web coating apparatus includes a supply roll of web and a wind-up spindle for receiving a discrete length of the web. Fluid is discharged from a coating die in a direction toward the wind-up spindle to coat the web as the web is wound about the wind-up spindle. A variable speed pump directs fluid through the coating die at flow rate that is proportional to the speed of advancement of the web. The apparatus is particularly useful for coating discrete lengths of orthopedic splinting and casting tape that is packaged for single patient use.Type: GrantFiled: January 31, 1996Date of Patent: June 24, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Michael D. Delmore, Gary W. Maier, Paul G. Kowski, Rodney W. Hauschulz
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Patent number: 5639514Abstract: A process for coating a metal substrate for packaging end use by applying to a primary substrate a thermosettable composition which is free of added solvent and has a residual solvent content not exceeding 10% derived from the manufacture of any of the ingredients. The composition is applied as a thermosettable film by extrusion in melt (including plastified) form through an extrusion coating die onto a substrate. There is relative movement between the die and the substrate so that successive areas on the substrate are coated with the thermosettable composition, so as to form a film. The primary substrate is the metal substrate for packaging end use or an intermediate temporary support from which the applied coating is transferred onto the metal substrate for packaging end use. The applied coating is thermally cured after extrusion through the extrusion coating die. Compositions suitable for use in this and other coating processes are described.Type: GrantFiled: March 1, 1995Date of Patent: June 17, 1997Assignee: Courtaulds Coatings (Holdings) LimitedInventors: Ian Thomas Jones, Anthony Brian Port
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Patent number: 5620513Abstract: A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may include temperature adjusting steps both upstream and downstream of the lubricant material-applying step. The space for incorporating the lubricant application procedure into the steel strip processing line is limited. The strip speed in the lubricant application procedure is synchronized with the strip speed normally attained in the steel strip processing method in the absence of an in-line lubricant application procedure. The steps of the lubricant application procedure are constrained to accommodate the space limits and strip speed synchronization requirement imposed on the lubricant application procedure when it is combined in-line with the steel strip processing method.Type: GrantFiled: May 8, 1995Date of Patent: April 15, 1997Assignee: Inland Steel CompanyInventors: Elliott Y. Spearin, James C. Carney
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Patent number: 5614265Abstract: A method and apparatus for applying a coating to a continuous length of tubing. A coating chamber having entry and exit ports substantially encloses a portion of the tubing while permitting the tubing to pass continuously therethrough. Airflow into the coating chamber through the exit port strips excess coating material from the tubing surface. Air is withdrawn from the coating chamber by vacuum pumps through one or more separation chambers which separate entrained particles or droplets of coating material from the air. The coating chamber is preferably disposed at a distance from the separation chamber(s). The vacuum line connecting the coating chamber with the separation chamber(s) is preferably flexible or breakable. The separation chambers are preferably capable of being operated in series or in parallel. Adjustable masks are preferably provided at the entry and exit ports of the coating chamber. A seal is preferably provided at the entry port.Type: GrantFiled: February 14, 1995Date of Patent: March 25, 1997Assignee: Allied Tube & Conduit CorporationInventors: Manzoor A. Chaudhry, Jeffrey L. Lamber, Bruce E. Laumann, Edward E. Mild, Brian G. Muick, Stephen T. Norvilas, David S. Pliner, Stephen E. Seilheimer
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Patent number: 5611859Abstract: An applicator is disclosed for inserting a substance into a body cavity. An apparatus for coating paper and a method of forming the paper into an applicator are also disclosed. The applicator is especially useful for inserting a catamenial tampon into a woman's vagina. The applicator includes a tubular member formed from at least one layer of paper which has an exterior surface. The tubular member is capable of holding the substance which is to be inserted. The exterior surface of the tubular member is coated with a water-insoluble coating which is comprised of from between about 95 to about 98 percent by weight of a polymeric material and from between about 2 to about 5 percent by weight of a slip agent. The coating provides the tubular member with a dry coefficient of kinetic friction ranging from between about 0.35 to about 0.56 and a wet coefficient of kinetic friction ranging from between about 0.78 to about 1.06.Type: GrantFiled: June 7, 1995Date of Patent: March 18, 1997Assignee: Kimberly-Clark CorporationInventors: Steven J. Nielsen, Yihua Chang, Tammy J. Rentmeester
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Patent number: 5607730Abstract: A novel method of applying paints and other coatings is disclosed which can be carried out by forcibly inserting a cloud of coating particles carried by at least one inert gas into a laser beam attenuated by defocusing. At least one of the inert gases serves as a shield against combustion and can be directed downwardly in addition to a sideway spreading and spraying action. The pressure of the inert gas pushes the particles down onto the substrate. As soon as the particles are energized by the laser beam, they melt and begin to flow while at that exact instant, the coating particles come into contact with the substrate to avoid any possible dissipation of the laser energy. The coating material compositions can be altered by increasing the melting time of the particles even though a short melting time is preferred for achieving a fast coating process.Type: GrantFiled: June 13, 1996Date of Patent: March 4, 1997Assignee: Clover Industries, Inc.Inventor: Ronald J. Ranalli
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Patent number: 5599395Abstract: In-line flat-rolled steel cleansing and finishing apparatus is disclosed which enable flat-rolled steel, as supplied with surface areas contaminated with iron fines and other debris from gauge reduction operations, to be continuously processed in-line, free of interruptions for cleansing purposes. Continuous-strip apparatus is disclosed which enable in-line continuous-strip cleansing in a manner which decreases iron fines carried by strip surfaces to a desired level while providing for continuous uniform cleansing. Carry-over of iron fines from the cleansing operations so decreases such that iron content of a coating means is decreased resulting in improved corrosion-protection coating. Diminishing iron content in a hot-dip galvanizing bath increases efficiency of aluminum additions and diminishes iron-aluminum dross.Type: GrantFiled: May 23, 1995Date of Patent: February 4, 1997Assignee: Weirton Steel CorporationInventors: Kenneth R. Olashuk, Lester R. Shields
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Patent number: 5597615Abstract: An extrusion coating head which is disposed between a drier for performing a non-contact drying operation and a support roll located at the upstream side of and nearest to the drier is designed so that a back edge surface thereof is designed to have an round surface having a radius of curvature R which satisfies the following inequality: 3 mm.ltoreq.R.ltoreq.30 mm, and the entire R-surface portion of the back edge of the coating head is located at a position higher than a tangential line drawn to the front edge surface at a slit-side edge point of the front edge so as to project toward the web side. The running web is coated with the coating liquid by the extrusion-type coating head, and then dried through a non-contact drying process.Type: GrantFiled: December 20, 1994Date of Patent: January 28, 1997Assignee: TDK CorporationInventors: Eizo Tsunoda, Yutaka Shimizu, Naomi Yoshiike, Katsumi Onozawa, Kazuo Katai, Eiichi Watanabe
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Patent number: 5585143Abstract: Objects which have been abraded are coated with a coating material which is normally solid at room temperatures. The material is liquified at elevated temperatures and sprayed onto the cooler objects in a heated cabinet, whereupon the material at least partially solidifies on the object. Thereafter, heat is applied to the coating material to cause it to flow out over the coat surface. A cooled conveyor system prevents disruption of the coating material. Overspray is maintained in liquified form within the cabinet where it is reclaimed and flows to a heated sump for direct recirculation to the spray apparatus. There are no deleterious solvent emissions. Apparatus and methods are provided.Type: GrantFiled: July 19, 1994Date of Patent: December 17, 1996Assignee: Nordson CorporationInventors: Donald R. Scharf, Douglas J. Conrad, Kenneth J. Coeling
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Patent number: 5573593Abstract: A coating apparatus is disclosed for coating a web of paper. The apparatus includes a first and second roll having axes of rotation disposed parallel relative to each other such that the rolls define therebetween a first nip for the selective passage therethrough of the web. A backing roll has a peripheral surface which cooperates with the first roll for defining therebetween a second nip. A coater cooperates with the peripheral surface for applying coating material to the web when the web is guided by the surface and disposed between the surface and the coater. A further backing roll has a further peripheral surface which cooperates with the second roll for defining therebetween a third nip. A further coater cooperates with the further surface for applying coating material to the web when the web is guided by the further surface and disposed between the further surface and the further coater.Type: GrantFiled: January 17, 1995Date of Patent: November 12, 1996Assignee: Beloit Technologies, Inc.Inventor: Graham W. Sutton
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Patent number: 5567237Abstract: A continuous drier for board-shaped piece material, especially for coated in-layers or printed circuit boards, is described which comprises a drying chamber, in which the board-shaped piece material to be dried is exposed to a guided air stream while being transported in a transport plane along a transport path from an entrance to an exit of the drying chamber by transport means acting preferably at its longitudinal edges. The drying chamber is equipped with an inlet for incoming air and with an outlet for outgoing air. Arranged above and below the transport path of the board-shaped piece material are infrared radiators the radiation of which acts directly on the coated piece material and which, in addition, form a heat source for the guided air stream. The air stream in the drying chamber is guided counter to the transport direction of the board-shaped piece material and substantially parallel to the transport plane. A coating installation comprising such a continuous drier is also described. (FIG.Type: GrantFiled: June 14, 1994Date of Patent: October 22, 1996Assignee: Ciba-Geigy CorporationInventors: Diethard Kapp-Schwoerer, Rainer Krauss
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Patent number: 5567240Abstract: An apparatus including a supply source for a long composite which includes a long carrier film and a green ceramic layer continuously formed thereon along its longitudinal direction, a printing station, a drying station and a punching station. A conductor film is printed on the green ceramic layer with conductive paste in the printing station, the printed conductor film is dried in the drying station, and the green ceramic layer provided with the conductor film is punched while being registered with the conductor film and separated from the carrier film in the punching station, whereby a ceramic green sheet for a laminated ceramic electronic component is extracted.Type: GrantFiled: March 2, 1994Date of Patent: October 22, 1996Assignee: Murata Manufacturing Co., Ltd.Inventors: Toshihiko Kogame, Mitsuro Hamuro
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Patent number: 5556466Abstract: In order to improve a coating plant for workpieces, in particular for vehicle bodies, comprising a coat application section, a coat drier section following the application section and comprising a drier booth arranged at a higher level in relation to the coat application section, a skid conveyor on the inlet side passing through the coat application section, the skid conveyor moving workpieces mounted on skid frames through the coat application section at a process feeding speed for the application of the coating, and a drier conveying device following the skid conveyor and conveying the skid frames with the coated workpieces mounted thereon through the coat drier section, such that this is simpler in its construction than the known coating plants it is suggested that the drier conveying device be a drier conveyor following the skid conveyor and moving the skid frames at the process feeding speed along a skid frame path through the coat drier section, that the drier conveyor extend beneath the skid frame pathType: GrantFiled: August 29, 1994Date of Patent: September 17, 1996Assignee: Duerr GmbHInventors: Wolfram Martin, Hartwig Besinger, Heinrich Weeber
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Patent number: 5551981Abstract: A ferrous strip is galvanized by establishing an electrostatic potential on the strip which is then submerged on a fluidized bed of powdered galvanizing material and then allowing the adhered galvanized powder to be carried by the strip to a reflow station. The reflow station heats the strip and galvanizing material to liquidity the galvanizing material and establish the necessary alloy interface on the ferrous strip. Thereafter, the strip passes to a cooling zone wherein the reflowed galvanizing material is solidified before contacting a roller to use to direct the strip to the exit of the galvanizing apparatus. The atmosphere within the galvanizing apparatus is remained inert through the use of nitrogen which is also used as the fluid medium for the suspension of the galvanizing powder in the fluidized bed.Type: GrantFiled: September 26, 1994Date of Patent: September 3, 1996Assignee: SMS Engineering, Inc.Inventor: Thomas A. Sellitto