Running Length Work, Longitudinally Traveling Patents (Class 118/419)
  • Patent number: 7556692
    Abstract: Known devices for coating a continuous web of material (13) comprise a casting container (1) which consists of a casting surface (8) for the discharge of the coating material in a free falling curtain (C); at least one distribution chamber (2) which extends in a transversal manner in relation to the direction of circulation of the web of material and which comprises a supply line (10) for the coating material and an discharge slit (9) which discharges onto the casting surface (8), and two lateral guiding elements (7, 12) which extend in a downward direction for the edges of the curtain (C). According to the invention, the lateral guiding elements (7, 12) are curved on the upper end thereof corresponding to the course of the casting surface, (8) whereon (8) the lateral guiding elements are fixed in an adjustable transversal manner and the coating material supply line (10) leads into the valve chamber (2) in the central area of the casting container (1).
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 7, 2009
    Assignee: Bachofen + Meier AG Maschinenfabrik
    Inventors: Rolf Metzger, Bruno Holtmann, Arno Zindel
  • Patent number: 7534300
    Abstract: A method of designing and the resulting thermally stable heated coating die apparatus, the die apparatus including a die having a die geometry and a heating system with heaters and temperature sensors. The method and resultant apparatus provides minimized temperature gradients, flat die lip faces in a die to roll plane and a flat die in a plane perpendicular to die flat lip faces and parallel to substrate width. The method optimizes simultaneously: die geometry, placement of the heaters, placement of temperature sensors, and shielding from operating conditions, using heat transfer and structural numerical modeling and statistical analysis while considering die functionality characteristics, minimum increment of temperature measurement and control accuracy related to minimum acceptable deviation from flatness, coating die material of construction relative to thermo-structural material properties, and desirable coating die material properties.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 19, 2009
    Assignee: Avery Dennison Corporation
    Inventors: Mark James Wyatt, Erik Martin Pedersen, Luigi Sartor
  • Patent number: 7476276
    Abstract: The invention relates to a device for hot dip coating a metal bar (1), especially a steel strip, in which the metal bar (1) is directed vertically through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) mounted upstream thereof. The inventive device comprises at least two inductors (5) which are arranged on both sides of the metal bar (1) in the area of the guide channel (4) and generate an electromagnetic field for retaining the coating metal (2) inside the container (3). In order to relax the coating bath, the distance (d) between the walls (6) that delimit the guide channel (4) is not kept constant in a direction (N) extending perpendicular to the surface of the metal strip (1) in the zone (H) of the vertical extension of the guide channel (4), which is located between the bottom side (7) thereof and the bottom area (8) of the container (3).
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: January 13, 2009
    Assignee: SMS Demag AG
    Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
  • Patent number: 7416608
    Abstract: The present invention discloses an apparatus for block type extrusion coating, and a process for forming block coating or grid-type coating on a substrate. The present invention uses a die set composed of an upper mold, a lower mold and a shim therebetween, which can be used to form a plurality of coated stripes. The present invention further uses several control valves, pumps and a controller to intermittently extrude a coating solution from the die set, so that the stripe coating is converted to a block coating. The block coated substrate can be rotated 90 degrees, followed by a stripe coating process to form a grid-type coating on the substrate.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: August 26, 2008
    Assignee: National Tsing Hua University
    Inventors: Ta-Jo Liu, E-Ron Chang
  • Publication number: 20080141934
    Abstract: A horizontal trough for use with a concrete broom is disclosed. The trough can be customized to fit various shapes and widths of concrete brooms.
    Type: Application
    Filed: November 14, 2007
    Publication date: June 19, 2008
    Inventors: Alton Edward Schmitt, Eric Edward Schmitt
  • Patent number: 7361224
    Abstract: The invention relates to a device for hot dip coating metal strands (1), particularly strip steel, in which the metal strand (1) can be vertically guided through a reservoir (3), which accommodates the molten coating metal (2), and though a guide channel (4) connected upstream therefrom. An electromagnetic inductor (5) is mounted in the area of the guide channel (4) and in order to retain the coating metal (2) inside the reservoir (3), can induce induction currents in the coating metal (2) by means of an electromagnetic blocking field. While interacting with the electromagnetic blocking field, said induction currents exert an electromagnetic force. In order to prevent an intense heating of the metal strand caused by the electromagnetic inductor, the invention provides that the inductor (5, 5a, 5b) is connected to electric power supply means (6) that supply the inductor with an alternating current whose frequency (f) is less than 500 Hz. In particular, a mains frequency of 50 Hz is intended.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: April 22, 2008
    Assignee: SMS Demag AG
    Inventors: Walter Trakowski, Olaf Norman Jepsen, Eckart Schunk, Klaus Frommann, Rolf Brisberger, Holger Behrens, Michael Zielenbach
  • Patent number: 7361226
    Abstract: A method of designing and the resulting thermally stable heated coating die apparatus, the die apparatus including a die having a die geometry and a heating system with heaters and temperature sensors. The method and resultant apparatus provides minimized temperature gradients, flat die lip faces in a die to roll plane and a flat die in a plane perpendicular to die flat lip faces and parallel to substrate width. The method optimizes simultaneously: die geometry, placement of the heaters, placement of temperature sensors, and shielding from operating conditions, using heat transfer and structural numerical modeling and statistical analysis while considering die functionality characteristics, minimum increment of temperature measurement and control accuracy related to minimum acceptable deviation from flatness, coating die material of construction relative to thermo-structural material properties, and desirable coating die material properties.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 22, 2008
    Assignee: Avery Dennison Corporation
    Inventors: Mark James Wyatt, Erik Martin Pedersen, Luigi Sartor
  • Patent number: 7338559
    Abstract: An fountain applicator for applying coating liquid onto a web of paper carried past the applicator, has a coating liquid flow path that includes a curved surface along which a sheet of the coating liquid is flowed to subject the sheet to centrifugal force to cause air entrained in the coating liquid to move away from one side of the sheet that is toward the curved surface, so that the one side is relatively free of entrained air. After being flowed along the curved surface, the sheet of coating liquid is directed toward the web in a free standing jet curtain of coating liquid, to contact the web surface primarily with the one relatively air-free side of the coating liquid sheet to decrease the occurrence of skip coating on the web surface, especially when the web is traveling past the applicator at high speeds. The coating is applied in excess onto the web surface and is metered and leveled to a desired coat weight by a downstream doctor.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: March 4, 2008
    Assignee: Stora Enso North America Corp.
    Inventor: Wayne A. Damrau
  • Patent number: 7326301
    Abstract: A device for direct or indirect application of liquid or viscous coating medium by way of an application system onto a material web, especially a paper or cardboard web, including a weakening device for weakening the boundary layer of air that is carried along by the application surface. The weakening device is located prior to the applicator device viewed in direction of travel of the application surface. The weakening device includes a blowing device and a suction device. The blowing device is located prior to the applicator device when viewed in direction of travel of the application surface and produces an air flow in opposite direction to the direction of travel. The suction device is located prior to the blowing device when viewed in direction of travel of the application surface and sucks off at least a portion of the air flow that is produced by the blowing device, as well as at least a portion of the boundary layer of air that is carried along by the application surface.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: February 5, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Richard Bernert, Benjamin Méndez-Gallon, Manfred Ueberschär
  • Patent number: 7291362
    Abstract: A method of applying a material to a moving substrate is disclosed. The method includes providing a die comprising a die body having a cavity therein, wherein the cavity is in fluid communication with an applicator slot. The die is then oriented such that the applicator slot is positioned so as to dispense the material onto the substrate. The material is introduced into the die cavity such that the material is dispensed onto the substrate through the applicator slot. At least one end of the slot includes means for preventing lateral widening of the dispensed material. In another embodiment, means will be disposed at both ends of the applicator slot. The method is particularly useful when the capillary number characteristic of the coating process is less than 0.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: November 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Mikhail L. Pekurovsky, William B. Kolb, Joan M. Noyola
  • Patent number: 7267722
    Abstract: A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved down. An extrusion coater is arranged below a backup roller in such a manner as to move up and down. If the pass roller moves up and bends up the traveling path of the web, the web separates from the bar coater. Then, if the extrusion coater moves up, the web is coated with the coating solution by the extrusion coater. If the pass roller and the extrusion coater move down, the web is coated with the coating solution by the bar coater.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 11, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yasuhito Naruse, Atsushi Kakumoto
  • Patent number: 7238237
    Abstract: The mounting is formed by grinding an integrally molded material with accuracy of the ?m order. An upper portion of the mounting is an L-shaped holding portion on which a slot die is positioned. An upper face of the holding portion contacts a lower face of the slot die, and a side face of the holding portion contacts a rear face of the slot die. The lower and rear faces of the slot die and the upper and side faces of the holding portion are formed to have such a straightness for the total length that the unevenness thereof may be in 5 ?m. Thus the slot die can be held with high accuracy, and the clearance accuracy between the lips and a web can be increased.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 3, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiko Tokimasa, Akio Tsuji, Yoshinobu Katagiri
  • Patent number: 7214272
    Abstract: The invention relates to a device for coating metal bars (1), particularly steel strips, by hot dipping. At least some sections of the metal bar (1) are vertically guided through a container receiving the molten coating metal (2), said metal bar (1) being guided by at least one roller (4) which runs on bearings. In order to increase the service life of the roller bearings, the roller, or at least the axis (5) thereof, penetrates the side walls (6) of the container (3) and is mounted outside the container (3).
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: May 8, 2007
    Assignee: SMS Demag AG
    Inventors: Hans-Georg Hartung, Walter Trakowski
  • Patent number: 7211297
    Abstract: An fountain applicator for applying coating liquid onto a web of paper carried past the applicator, has a coating liquid flow path that includes a curved surface along which a sheet of the coating liquid is flowed to subject the sheet to centrifugal force to cause air entrained in the coating liquid to move away from one side of the sheet that is toward the curved surface, so that the one side is relatively free of entrained air. After being flowed along the curved surface, the sheet of coating liquid is directed toward the web in a free standing jet curtain of coating liquid, to contact the web surface primarily with the one relatively air-free side of the coating liquid sheet to decrease the occurrence of skip coating on the web surface, especially when the web is traveling past the applicator at high speeds. The coating is applied in excess onto the web surface and is metered and leveled to a desired coat weight by a downstream doctor.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: May 1, 2007
    Assignee: Stora Enso North America Corp.
    Inventor: Wayne A. Damrau
  • Patent number: 7192485
    Abstract: A device (510) for the direct or indirect application of liquid or pasty application medium (516) by means of an applicator unit (512) to a material web (520), in particular of paper or board, comprises a device (570) upstream of the applicator unit (512) in the running direction (L) of the substrate (U) in order to attenuate the air boundary layer (G) carried along by the substrate (U). The attenuation device can in this case comprise a sealing element (570) which is pressed in a sealing manner against the substrate (U) and rolls on the latter substantially without slippage, and/or can comprise an electrode arrangement and/or can comprise an ultrasound source and/or can comprise a resilient diaphragm element acting without contact.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: March 20, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Bernert Richard, Méndez-Gallon Benjamin, Ueberschär Manfred
  • Patent number: 7175711
    Abstract: A coating device (10) for coating a metal strip (12) in a metal melt (14) includes a shaft (16,18) that is rotatable in the metal melt (14) for guiding the metal strip (12), and a slide bearing (261, 262) for supporting the shaft (16,18). The slide bearing (261, 262) is formed by a bearing housing (32) and a bearing bushing (34) that has several pairs (361–364) of bearing surfaces and is configured so as to be circumferentially closed. The bearing bushing (34) is adapted to be set in selected rotational positions in circumferential direction in the bearing housing (32). A releasable bearing bushing fixing element (40) locks the bushing in each of the selected rotational positions with respect to the bearing housing (32). Thereby, a worn pair (361–364) of bearing surfaces can be simply replaced by a non-worn pair (361–364) of bearing surfaces by a rotation of the bearing bushing.
    Type: Grant
    Filed: June 14, 2003
    Date of Patent: February 13, 2007
    Assignee: Band-Zink GmbH
    Inventor: Wilfried Plätzer
  • Patent number: 7169230
    Abstract: A coater apparatus (10) is disclosed for applying coating material onto a moving web. The apparatus (10) includes an applicator having a first and a second end, the applicator (16) defining a feeding chamber (22) for the reception therein of the coating material (12). The applicator (16) includes a fixed lip (24) which extends from the feeding chamber (22) towards the web (14). A movable lip (26) extends from the feeding chamber (22) such that when the movable lip (26) is disposed in a first disposition thereof, the movable lip (26) cooperates with the fixed lip (24) for defining therebetween a slot for guiding the coating material (12) from the feeding chamber (22) towards the moving web (14). However, when the movable lip (26) is pivoted away from the fixed lip (24) to a second and third disposition thereof, flushing and cleaning of the applicator (16) is permitted.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: January 30, 2007
    Assignee: PHT Italia S.p.A.
    Inventors: Luca Ghelli, Corrado Turinetti, Giorgio Baldins
  • Patent number: 7160390
    Abstract: During displacement relative to a substrate 1, a coating die head emits coating liquid out of a slot 12a to a surface of the substrate. The coating die head includes a lip 12b having a lip surface 12b and a side having a side surface 12c. A contact angle of the surface 12c with respect to the coating liquid is greater than a contact angle of the surface 12b with respect to the coating liquid. This configuration enhances stabilization of bead of the coating liquid during application process of the coating liquid, preventing stripes and steps from appearing in the coating layer. This coating die head makes it possible to carry out high precision coating required for fabrication of color filters for liquid crystal displays.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: January 9, 2007
    Assignee: Dai Nippon Printing Co. Ltd
    Inventors: Takeaki Tsuda, Hiroshi Yoshiba, Takashi Aoki
  • Patent number: 7156920
    Abstract: The coating device (10) for coating a metal band or strip (12, 12?) in a melted metal mass (14 ) comprises a shaft (16, 18) rotatably supported in the melted metal mass (14) by a slide bearing (261, 262) is formed by a bearing housing (32) and an open bearing shell (34) held therein, with two bearing surfaces (36) . Between the two bearing surfaces (36), the bearing shell (34) comprises a deformation zone (40) with a deformation element (44) . With high radial forces of the shaft occurring, the two bearing shell halves (381, 382) are slightly spread. The flexible deformation zone ensures that the two bearing shell halves remain interconnected and resist breaking in this area.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: January 2, 2007
    Assignee: Band-Zink GmbH
    Inventors: Daniel Plaetzer, Wilfried Plaetzer, Ernst-Werner Schmidt, Roman Lieutenant
  • Patent number: 7077907
    Abstract: The coating head according to the present invention comprises a slit facing the supporting member along a width direction of the supporting member, the coating fluid being ejected through an opening of the slit, a front edge surface provided on an upstream side of the slit in a direction of travel of the supporting member, the front edge surface facing the supporting member, a back edge surface provided on a downstream side of the slit in the direction of travel of the supporting member, the back edge surface facing the supporting member, and a back edge back surface intersecting the back edge surface by forming a predetermined angle therebetween, wherein a surface roughness Ra of the back edge back surface is 0.2 ?m or less.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: July 18, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mikio Tomaru
  • Patent number: 7056421
    Abstract: The specification discloses a waterbox for applying an aqueous mixture, such as a starch mixture, to a web in a calender stack. The waterbox includes a spillway disposed adjacent a calender stack having a bottom plate, substantially parallel front and rear walls, and substantially parallel first and second end walls. The waterbox also includes an elongate lip for which extends from adjacent the front wall of the reservoir to a position adjacent a roll of the calender stack to form a pond area. A weir is provided for controlling the amount of mixture in the pond. Additionally the waterbox includes an inlet or a plurality of inlets for introduction of mixture into the pond area located below the pond level.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: June 6, 2006
    Assignee: International Paper Company
    Inventors: James L. Ferguson, III, James L. Allen, Jr.
  • Patent number: 7037375
    Abstract: A device for direct or indirect application of liquid or viscous coating medium by way of an application system onto a material web, especially a paper or cardboard web, including a weakening device for weakening the boundary layer of air that is carried along by the application surface. The weakening device is located prior to the applicator device viewed in direction of travel of the application surface. The weakening device includes a blowing device and a suction device. The blowing device is located prior to the applicator device when viewed in direction of travel of the application surface and produces an air flow in opposite direction to the direction of travel. The suction device is located prior to the blowing device when viewed in direction of travel of the application surface and sucks off at least a portion of the air flow that is produced by the blowing device, as well as at least a portion of the boundary layer of air that is carried along by the application surface.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: May 2, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Richard Bernert, Benjamin Méndez-Gallon, Manfred Ueberschär
  • Patent number: 7029532
    Abstract: A coating station, which in intended for coating a web with a coating material, includes a load-bearing and cross-directional frame extending substantially across the entire width of the web. The coating station also includes applicator elements supported to the frame. The frame is arranged by at least one cross component formed out of sheet metal into a box-type structure, the cross component extending substantially across the entire width of the web. The cross component is attached to the end components by its end parts.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: April 18, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Leo Kurkinen, Vilho Nissinen, Mika Vähäkuopus, Risto Väätänen
  • Patent number: 7018474
    Abstract: In coating with two slits of a coating slit and a recovering slit, by optimizing the slit clearance of the coating slit and the recovering slit, a coating layer with a very small and even thickness can be obtained. In a coating apparatus in which after a coating liquid is applied to a web to excess through the coating slit, a desired amount of coating liquid is applied to the web by scraping off an excess of coating liquid with a recovering slit, there is provided a slit clearance adjusting device for adjusting the slit clearance of the recovering slit.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 28, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshihiro Mandai, Mikio Tomaru, Norio Shibata
  • Patent number: 6991682
    Abstract: An adhesive applicator for a core-making machine is provided with an applicator plate for applying adhesive to a web. The applicator plate has upstream and downstream faces and a bottom surface which extends from the upstream face beyond the downstream face. The bottom surface is adapted to spread adhesive on a moving web below the bottom surface. The bottom surface forms a narrow wedge-shaped portion with an upper surface which extends away from the downstream face.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: January 31, 2006
    Assignee: Paper Converting Machine Company
    Inventors: Richard J. Moss, Donald J. School
  • Patent number: 6991717
    Abstract: The present invention relates to a web handling apparatus and process ideally suited for applications involving wet chemistry. The invention involves the horizontal processing of webs in processing containers. The web is redirected into the processing container by inserting a cassette across the web and into the processing container. The cassette includes at least one functional fluid element that facilitates processing of the web. The web handling practices of the invention improve the quality of the processed web. The invention is preferably used in electrodeposition processes.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 31, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Gregory F. King, John S. Huizinga, James N. Dobbs, Luther E. Erickson, Daniel H. Carlson, Dale L. Ehnes, Gary A. Shreve
  • Patent number: 6984412
    Abstract: The present invention provides a method for removing wrinkles formed on a web, which is continuously transported through a plurality of guide members. The plurality of guide member includes a crown roller which has the diameter gradually increased toward the center thereof. The crown roller is placed in a transport path of the web and downstream of a first zone in which wrinkles are desirably removed, and the web is deformed in a second zone located downstream of the crown roller so as to at least decrease the width of the web, whereby the wrinkles in the first zone are removed. Even when the web is thin (10 ?m or less), without using particular backup means, wrinkles formed during transport and coating of the web can be removed. In addition, since wrinkles are appropriately removed, a coating film having a uniform thickness can be obtained by an extrusion coating method.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: January 10, 2006
    Assignee: TDK Corporation
    Inventor: Hideki Tanaka
  • Patent number: 6982003
    Abstract: An apparatus for curtain coating, particularly for high-speed curtain coating of a continuous paper web substrate (12) is provided with a hopper means (14) providing one or more liquid coating materials in the form of a free-falling curtain (16) impinging the substrate (12) at a dynamic wetting line. Edge guide elements (22, 24) are arranged on both sides supplying a wetting or auxiliary liquid. Each guide element (22, 24) has at least one contact area of its surface directed towards said curtain, which contact area has a multiplicity of grooves (32) and ribs (34) extending along the length of said edge guide elements (22, 24).
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 3, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Markus Gueggi, Sedat Varli
  • Patent number: 6939586
    Abstract: A process for the continuous dip-coating of a metal strip (1) in a tank (11) containing a liquid metal bath (12), in which process the metal strip (1) is made to run continuously through a duct (13), the lower part (13a) of which is immersed in the liquid metal bath (12) in order to define with the surface of the bath a liquid seal (14). A natural flow of the liquid metal from the surface of the liquid seal (14) is set up in two overflow compartments (25, 29) made in the duct (13) and each having an internal wall which extends the duct (13) in its lower part, and the level of liquid metal in the compartments is maintained at a level below the surface of the liquid seal (14). A plant for implementing the process.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: September 6, 2005
    Assignee: Usinor
    Inventors: Didier Dauchelle, Hugues Baudin, Patrice Lucas, Laurent Gacher, Yves Prigent
  • Patent number: 6936305
    Abstract: Equipment for producing rolls of wound web material including a feed path for the web material, winding structure for winding the web material and forming the rolls, and along the feed path and upstream from the winding means, an applicator member for applying to the web material fed along the path a dry component of a component with a low liquid content of a liquid-based mixture, with which the wound web material is impregnated.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 30, 2005
    Assignee: Fabio Perini S.p.A
    Inventor: Guglielmo Biagiotti
  • Patent number: 6936307
    Abstract: A process for the continuous dip-coating of a metal strip (1) in a tank (11) containing a liquid metal bath (12), in which process the metal strip (1) is made to run continuously through a duct (13), the lower part (13a) of which is immersed in the liquid metal bath (12) in order to define with the surface of the said bath a seal (14). A natural flow of the liquid metal from the surface of the liquid seal is set up in an overflow compartment (25) made in the duct (13) and having an internal wall which extends the duct (13) in its lower part, and the level of liquid metal in the compartment (25) is maintained at a level below the surface of the liquid seal (14). Also, a plant for implementing the process.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: August 30, 2005
    Assignee: Usinor
    Inventors: Didier Dauchelle, Hugues Baudin, Patrice Lucas, Laurent Gacher, Yves Prigent
  • Patent number: 6929697
    Abstract: The invention relates to a device for hot dip coating metal strand (1), particularly strip steel, in which the metal strand (1) can be vertically guided through a reservoir (3), which accommodates the molten coating metal (2), and though a guide channel (4) connected upstream therefrom. An electromagnetic inductor (5) is mounted in the area of the guide channel (4) and in order to retain the coating metal (2) inside the reservoir (3), can induce induction currents in the coating metal (2) by an electromagnetic traveling field. While interacting with the electromagnetic traveling field, the induction currents exert an electromagnetic force. The inductor (5) has at least two main coils (6) that are arranged in succession in movement direction (X) of the metal strand (1), and has at least two correction coils (7) for controlling the position of the metal strand (1) inside the guide channel (4) in direction (N), which is normal to the surface of the metal strand (1).
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: August 16, 2005
    Assignee: SMS Demag AG
    Inventors: Frank Bergmann, Michael Zielenbach, Walter Trakowski, Olaf Norman Jepsen, Holger Behrens
  • Patent number: 6926773
    Abstract: The coating device for coating a metal band (12) in a melt (14) of a non-magnetic metal comprises a shaft (16) rotatable in the melt (14) for guiding the metal band (12). The shaft (16) is supported in a shaft bearing (261) that is a magnetic bearing whose stationary portion (281) is encapsulated. Thus, a contactless shaft support in a metal melt is obtained, whereby the bearing wear is largely reduced and the service life of the bearing is prolonged.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: August 9, 2005
    Assignee: Band-Zink GmbH
    Inventor: Wilfried Plaetzer
  • Patent number: 6845928
    Abstract: A gas wiping nozzle for a wire coating apparatus includes an inlet portion defining a converging inlet passage for a coated wire that is axially drawn through the gas wiping nozzle. A wiping portion is further included and defines a wiping passage for the coated wire, downstream and in an axial extension of the inlet passage. The wiping portion has a gas outlet surrounding the wiping passage for blowing wiping gas onto the coated wire. A protruding annular lip is arranged between the converging inlet passage and the wiping passage, and the annular lip defining a passage for the coated wire that is narrower than the wiping passage so that the gas outlet means in the wiping passage is protected by the protruding annular lip against direct contact with the coated wire which is axially drawn through the passages of the wiping gas.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: January 25, 2005
    Assignee: Trefilarbed Bissen SA
    Inventor: Fernand Felgen
  • Publication number: 20040261699
    Abstract: A nitrogen injection assembly for use in coloring and curing optical fibers is disclosed. The nitrogen injection assembly includes a cover section and a distribution seal. An optical fiber coated with ink passes from a coating die to a curing chamber via a passageway defined by the cover section and the distribution seal. The distribution seal injects nitrogen into the passageway to keep the coated fiber and the curing chamber substantially free of oxygen. With the distribution seal positioned closer to the curing chamber than the cover section, the apparatus minimizes the risk of leaks in the passageway and the number of required seals.
    Type: Application
    Filed: August 12, 2004
    Publication date: December 30, 2004
    Inventors: Glen Falk, Rick Alexander
  • Patent number: 6811827
    Abstract: In a process of hot dip coating of metal strips, in particular, of a hot rolled steel strip, in which the metal strip is transformed into a continuous strip in an unwinding station with an adjoining welding machine, and then the continuous strip is subjected to a downstream modifying process including primary and secondary prickling and, in the final treatment step; in the hot dip coating section, guiding the continuous strip through a melt bath, a variable coating process with reduced costs becomes possible when the continuous strip, in a first treatment step, is directly transported into a pickling installation. In a suitable installation for effecting the process, the primary pickling installation is located in the entry section which is separated from the hot dip coating section by an entry accumulator.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: November 2, 2004
    Assignee: SMS Demag AG
    Inventors: Rolf Brisberger, Peter de Kock
  • Patent number: 6802904
    Abstract: A device for the two-dimensional application of free-flowing adhesive to strip material, especially to furniture edge banding. An adhesive channel is contained in an applicator head and an applicator valve selectively blocks or releases the flow of adhesive in the adhesive channel. A slot nozzle communicates with the adhesive channel, which nozzle has a slot-shaped exit opening for dispensing adhesive onto the strip material. A guide device for guiding the strip material past the exit opening of the slot nozzle along a defined path is removably attached to the applicator head. The guide device includes a first guide element which comes in contact during operation with the surface of the strip material opposite the surface to be glued, and at least one additional guide element which comes in contact during operation with an edge of the strip material.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: October 12, 2004
    Assignee: Nordson Corporation
    Inventor: Colin Pedigrew
  • Patent number: 6802903
    Abstract: An apparatus and method are provided for applying adhesive to an outer circumference of a section of tubing. The apparatus includes opposed grippers with concave adhesive transfer areas that can be moved into surrounding relationship with the tubing. Adhesive dispensing passages communicate with the adhesive transfer areas for delivering adhesive to the tubing. Counterbores are at opposed ends of the adhesive transfer areas and communicate with a vacuum source for removing excess adhesive.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: October 12, 2004
    Assignee: Becton, Dickinson and Company
    Inventors: Brian Barber, John Young
  • Patent number: 6758906
    Abstract: Apparatus for the application of adhesive to one side of a running web of tipping paper for use in filter cigarete makers has a single source of adhesive or two or more sources containing identical or different adhesives, and one or more conduits leading from the source(s) to one or more nozzles which applies or apply one or more films of a single adhesive or of different adhesives to selected portions of the one side of the web. The rate of admission of adhesive(s) to the nozzle(s), including interruption and restarting of admission of adhesive(s), is regulated by one or more valves each having a body receiving a rotary valving element provided with one or more peripheral projections and/or recesses serving to regulate the rate of flow of adhesive toward the single nozzle or the respective nozzles. The rotary elements of two or more valves can constitute disc-shaped sections of a single rotor confined in a valve body common to all valves.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: July 6, 2004
    Assignee: Hauni Mashinenbau AG
    Inventors: Berthold Maiwald, Torsten Mörke, Karl-Heinz Pawelko
  • Patent number: 6746537
    Abstract: In order to provide a coating apparatus in which an edge can be fixed rigidly so as to apply a coating agent at a uniform thickness, edge units are provided which comprise edge support members and edges which are attached to the tips of the edge support members so as to slide on a flexible tape support member. The edge which is not disposed at both ends in the running direction of the flexible tape support member is fixed to the edge support member by an edge fixing member which is inserted in a direction from a bottom portion of the coating apparatus toward the edge. The edge is fixed so as to be pulled into a recessed section formed on the edge support member by the edge fixing member.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: June 8, 2004
    Assignee: Mitsubishi Materials Corporation
    Inventors: Tsutomu Fukuda, Toshihiko Kanayama
  • Patent number: 6726770
    Abstract: An application device for applying an application medium to at least one side of a moving product web, the web having a running direction. The application device includes at least one roll supporting the web, at least one pocket between at least one roll and at least one side, at least one pocket having a size and a shape, at least one feed apparatus including a metering element, the metering element having at least one discharge nozzle projecting into at least one pocket and at least one application chamber designed into the metering element, at least one discharge nozzle discharging the application medium onto the web in a first direction and proximate to at least one application chamber, the first direction approximately orthogonal to the running direction.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 27, 2004
    Assignee: Voith Paper Patent GmbH
    Inventor: Kurt Eichinger
  • Patent number: 6719945
    Abstract: This invention is related to galvanizing roll assemblies provided with self-aligning hydrodynamically lubricated roller-bearings used in equipment submerged in molten metal.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: April 13, 2004
    Inventor: Jorge A. Morando
  • Patent number: 6689214
    Abstract: An apparatus for applying fluid to a substrate which is movable relative to the apparatus. A slotted nozzle assembly of the apparatus communicates with a fluid supply and includes an elongated slot with an outlet aperture. The length of the slot may be varied using a stopper which can move in the slot and seal it off laterally. In another aspect, the entire slot can be shifted and fixed in the direction of the longitudinal axis of the slot using a guiding and adjusting device.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: February 10, 2004
    Assignee: Nordson Corporation
    Inventors: Thomas Burmester, Jorg Steffens
  • Patent number: 6676754
    Abstract: Methods of applying a polymer coating to a substrate are disclosed. By disrupting a bank of polymer precursor, a smooth coating of fast setting polymer can be applied to a substrate. Apparatus for applying a polymer coating is also disclosed. In one embodiment, an oscillating dispenser is used to apply polymer precursor onto to a dispersive surface. The polymer precursor flows down the surface and is transferred to a moving web. Flowing solvent downwardly through the dispenser can provide efficient cleaning without the need for disassembly or production delays.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. Fleming, Michael E. Mehsikomer, David J. Schreifels, Steven H. Gotz
  • Publication number: 20030217692
    Abstract: A coating device is disclosed which is provided with a first side bar, which extends along a transverse direction of a conveyance plane, which is a conveyance path of a belt body, and a second side bar, which is located at a downstream side of the first side bar. Also provided are a channel, which supplies a liquid at an upstream side of the first side bar, and a liquid-pooling section, which accumulates the liquid during coating of the liquid and is located between the first side bar and the second side bar. Also disclosed is a method which uses this coating device to coat a liquid on a belt body which is conveyed at high speed.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 27, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Shin Kanke, Hiromu Ando
  • Patent number: 6652654
    Abstract: The present invention is related to the modifying of substrates with multiple modifying agents in a single continuous system. At least two processing chambers are configured for modifying the substrate in a continuous feed system. The processing chambers can be substantially isolated from one another by interstitial seals. Additionally, the two processing chambers can be substantially isolated from the surrounding atmosphere by end seals. Optionally, expansion chambers can be used to separate the seals from the processing chambers.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: November 25, 2003
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: W. Alan Propp, Mark D. Argyle, Stuart K. Janikowski, Robert V. Fox, William J. Toth, Daniel M. Ginosar, Charles A. Allen, David L. Miller
  • Patent number: 6641706
    Abstract: The invention relates to a device to be used in processing of a surface of metal object to be processed which surface is essentially continuously in onwards motion. According to the invention a processing agent (1) is to be directed to the surface (5) to be processed by nozzles (6) in at least one position so that at most 70 per cent of the surface (5) to be processed is under processing in one position of directing processing agent (1).
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Outokumpu Oyj
    Inventors: Reine Johan Thorbjörn Lindwall, Anna Lindwall, Torbjörn Lindwall
  • Patent number: 6635225
    Abstract: An automatic stainer for staining objects, arranged on slides for microscopic examination is described. The automatic stainer has multiple reagent containers arranged one behind another for treating the objects. The slides pass through the reagent containers in succession, a transport basket for receiving multiple slides being provided. Multiple transport baskets can be received simultaneously in respective different reagent containers, and are simultaneously lifted out of the respective reagent container by way of a motorized transport mechanism having a lifting device and are respectively transported on into an adjacent reagent container. A removal station that has a collecting reagent container for the simultaneous reception of multiple transport baskets is arranged at the end of the row of reagent containers.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: October 21, 2003
    Assignee: Leica Microsystem Nussloch GmbH
    Inventors: Stefan Thiem, Ralf Kaltenmeier, Eric Barth, Joachim Glasenapp, Stefan Kunkel
  • Patent number: 6626127
    Abstract: The invention relates to a device for the application of a liquid medium onto at least one side of a moving material web, specifically a cardboard web, including at least one roll and at least one feed device for the coating medium, whereby during operation of the device a liquid sump forms between the roll and the web. Nozzle lips of a nozzle body of the feed device are configured so that the desired dimension of the open surface of the liquid sump and the depth of immersion of the nozzle lips into the liquid sump, and thereby the level of the liquid sump are adjustable. The nozzle lips are surrounded up to 80% of their total length by the liquid sump.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 30, 2003
    Assignee: Voith Paper Patent GmbH
    Inventors: Kurt Eichinger, Lothar Pfalzer
  • Patent number: 6613149
    Abstract: The invention relates to an apparatus and a method for applying glue to banderoles, more particularly banderoles for cigarette packs, comprising a glue supply, a nozzle device (7, 9, 12), a guide for the banderoles to be glued and a means for controlling glue delivery, whereby the nozzle device (7, 9, 12) comprises a glue distributor (7) which applies the glue in two streaks to the banderole by a continual contact process.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: September 2, 2003
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Thomas Jung, Thomas Kremer