With Means To Guide Work To Follow Perimeter Of Applicator Patents (Class 118/246)
  • Patent number: 10941510
    Abstract: An apparatus for perforating a carbon fiber substrate material comprises a support structure including a first side support and a second side support and a cylindrical anvil rotatably connected between the first side support and the second side support. The anvil is configured to move the carbon fiber substrate material in response to rotation of the anvil. The apparatus further comprises a cylindrical cutting wheel rotatably connected to the support structure between the first side support and the second side support and positioned adjacent to the anvil. The cutting wheel includes a plurality of blades projecting outward from an outer surface of the cutting wheel wherein the blades of the cutting wheel are configured to perforate the carbon fiber substrate material when the carbon fiber substrate material moves between the anvil and the cutting wheel.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 9, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hamid G. Kia, Selina X. Zhao
  • Patent number: 10507312
    Abstract: The present disclosure relates to a method for manufacturing a microneedle enabling product quality and efficiency in production to be improved by reducing the time needed for spotting a viscous material. The method for manufacturing a microneedle, according to the present disclosure, comprises the steps of spotting a viscous material on a plurality of spots on a film by supplying the viscous material to the upper surface of the film by means of a plurality of through-holes provided on an injection plate, elongating the viscous material spotted on the film; and coagulating the elongated viscous material.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: December 17, 2019
    Assignee: Raphas Co., Ltd.
    Inventors: Jung Dong Kim, Do Hyeon Jeong, Beom Joon Kim, Hong Kee Kim
  • Patent number: 9731314
    Abstract: A coating system and method including a web path moving a substrate past a contacting element including a distribution manifold having a cavity, and a multiplicity of needle tubes in fluid communication with the cavity, the needle tubes each having a needle tip dispensing a coating material towards a point of contact between the substrate and the contacting element. In some embodiments, the distribution manifold separates into a manifold containing the internal cavity, and a removable cartridge having the plurality of needle tubes. The coating system and method can be used to apply a pre-metered coating material to the substrate.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 15, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gary W. Maier, Lars A. Smeenk
  • Patent number: 8535763
    Abstract: A first coating rod placed on an upper-surface side of a resin film is pressed onto the resin film in a state where the first coating rod is circumscribed and supported by support members each comprising a pair of rollers and spaced with intervals therebetween in a length direction of the first coating rod so that the first coating rod is rotated in a forward direction at a speed substantially equal to that of the resin film, and a lower surface of the resin film is supported by a guide roll or a second coating rod placed on a downstream side of the first coating rod and an upstream side of a tenter so that the coating liquid continuously measured and supplied to an upper surface of the resin film is smoothened by the first coating rod.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: September 17, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyuki Inoue, Hiroshi Nagai, Naohiro Takashima
  • Patent number: 8443858
    Abstract: An edge banding machine has: a glue-applying unit including a glue container mounted on a mounting plate, and a glue-applying roller rotatable relative to the glue container; a transmission unit including front and rear conveying wheels and a transmission member connected between the front and rear conveying wheels for driving the glue-applying roller; and a feeding unit including two juxtaposed vertical rods disposed on the mounting plate and spaced apart from each other by a passage distance, and two elongate projecting blocks spaced apart from each other by a distance that reduces gradually in a direction toward the front conveying wheel. The projecting blocks are spaced apart from the vertical rods by a gap distance. A ratio of the gap distance to the passage distance is not more than 4.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 21, 2013
    Inventor: Chin-Chi Lin
  • Patent number: 8430144
    Abstract: An edge banding machine includes a machine body unit having a mounting plate, a glue-applying unit, a glue-scratching unit and a transmission unit. The glue-applying unit includes a glue container mounted fixedly on the mounting plate, a supporting member disposed fixedly and directly above the glue container and a glue-applying roller rotatably extending into the glue container. The glue-scratching unit includes a rotating shaft disposed rotatably on the supporting member, a glue-scratching plate disposed fixedly on the rotating shaft and extending toward the glue-applying roller, an adjustment rod disposed adjustably on the cover, and a connecting member connected between the adjustment rod and the rotating shaft such that movement of the adjustment rod results in rotation of the rotating shaft.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: April 30, 2013
    Inventor: Chin-Chi Lin
  • Patent number: 7913642
    Abstract: The present invention relates to a coating assembly and methods that employ the coating assembly to control the thickness of therapeutic or other coatings delivered to a medical device during a coating process. In one embodiment the coating assembly may include a coating plate having a coating transfer surface and a shoulder having a first height, a mandrel moveable over the coating transfer surface, and a coating dispenser positioned in fluid communication with the coating transfer surface. The invention also includes a method of coating a medical device. This method may include placing a medical device on a mandrel, dispensing coating onto a coating transfer surface of a coating plate, moving the mandrel and the medical device over the coating transfer surface of the coating plate so that coating resident on the coating transfer surface transfers to an exposed surface of the medical device, and removing the medical device from the mandrel.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 29, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Tim O'Connor, Dave McMorrow, Gabriel Sobrino, Liam Ward, Noel Hynes
  • Patent number: 7803429
    Abstract: Disclosed are fiber coating sizing applicator apparatus having a member to remove unused sizing and foreign objects from the fiber coating element of the applicator on a continuous or intermittent basis. Also disclosed are sizing applicators having as part of the drive, a servo motor for reduced variation in sizing application. Unused sizing is filtered to remove foreign objects and returned the applicator right away, or stored in a temperature controlled area until ready to feed back to a sizing applicator. Also disclosed are methods of using the sizing applicator apparatus to produce sized fibers. The apparatus and methods of the invention produce a substantial reduction in the fiber break rate, sizing usage and applicator maintenance.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: September 28, 2010
    Assignee: Johns Manville
    Inventors: Michael David Folk, Russell Donovan Arterburn, Nicole Anne Curtis, Derek Cooper Bristol, Dennis J. Scherger, Douglas J. Kempski
  • Patent number: 7595086
    Abstract: A method is provided for applying adhesive to the flutes of a corrugated sheet web. An applicator roll is provided with a uniform thin coating of adhesive by a metering rod. Exposed crests of the flutes are brought into contact with a coating of adhesive that has been applied to a surface of an applicator roll in order to provide a uniform bead of adhesive on the flute crests. The flutes are compressed against the applicator roll surface in a forward direction relative to the direction in which the web is moving adjacent the applicator roll surface. In one embodiment, the applicator roll has a surface linear velocity greater than the speed at which the web is traveling.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: September 29, 2009
    Inventor: Herbert B. Kohler
  • Patent number: 7435299
    Abstract: An apparatus and method are provided for selectively applying an agent-containing liquid coating to extremely tiny skin piercing microprojections (10). The coating solution is applied to the skin piercing microprojections (10) using a coating technique which selectively coats only the skin piercing microprojections (10) and not the substrate (12) from which the microprojections (10) extend, and then dried. The coating method includes providing an agent-containing coating liquid and conveying the liquid to a liquid holding surface having a coating transfer region. The depth of the coating liquid at the coating transfer region is precisely controlled. The microprojections are then immersed to a predetermined level in the coating liquid. The liquid that coats the microprojections (10) is then dried to form a solid agent-containing coating on the microprojections (10).
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: October 14, 2008
    Assignee: ALZA Corporation
    Inventors: Joseph C. Trautman, Cedric T. Wright, Michel J.N. Cormier
  • Patent number: 6399160
    Abstract: A method and apparatus for coating a paper or board web, wherein the web to be coated is brought to a film transfer coater and taken to a nip between the film transfer roll of the coater and its backing roll, and coating mix is applied onto the surface of the film transfer roll. The web is taken through the nip between the rolls and the rolls are turned, whereby the coating mix applied onto the applicator roll is at least partly transferred onto the surface of the web. The web is supported through the nip by means of a belt traveling at the same speed as the web, the belt having been arranged to travel on the backing roll. The web is taken onto the surface of the belt prior to the nip and separated from the belt after the nip, and it is pressed against the film transfer roll by means of the belt. The length of the path where the web and the film transfer roll are in contact with each other is controlled by varying the position of the web and the belt.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: June 4, 2002
    Assignee: Valmet Corporation
    Inventors: Johan Grön, Jorma Kinnunen, Mikko Tani, Erja Nikula
  • Patent number: 6309463
    Abstract: A device for direct or indirect application of a liquid or viscous coating medium onto a moving material web, specifically a paper or cardboard web, includes an applicator unit which, in the direct application method, applies the coating medium in the form of a coating layer directly onto the material web at a point of application. In the indirect application method, the coating medium is first applied onto an applicator element, for example an applicator roll, which then transfers, at the point of application, the coating medium to the material web in the form of a coating layer. In addition, a drying device for drying of the coating layer is provided downstream from the point of application, viewed in the direction of flow of the material web. In the applicator unit, a device for moistening and/or warming the material web, coating medium or the coating layer is additionally provided before the drying device, viewed in the flow direction of the material web.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: October 30, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Harald Hess, Rüdiger Kurtz, Benjamin Mendéz-Gallon
  • Patent number: 6146460
    Abstract: A wallpaper preparation device including a tray having a length and defining a reservoir for receiving a fluid for application to wallpaper. A roller rotatably carried by the tray and extending into the reservoir. A retaining member having opposing ends engagable with engagement features formed in opposing ends of the tray on a first side of the roller. The retaining member extends the length of the tray parallel to a surface of the roller with a gap therebetween, for holding the wallpaper against the roller. The retaining member is adjustable to increase and decrease the gap, thereby decreasing and increasing a frictional force between the wallpaper to be prepared and the roller.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 14, 2000
    Inventors: Daniel L. Poole, Robert N. Poole
  • Patent number: 5980635
    Abstract: A method and apparatus for applying mortar to the underside of a building block to be laid so that the mortar to be applied is automatically conveyed upwardly from a mortar supply container into a mortaring region where it is applied to the underside of the building block. The mortar can be sprayed onto the building block or applied thereto by a rotating coating roller, thereby automating the application of mortar and also reducing the consumption thereof.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: November 9, 1999
    Assignee: Greisel-Baustoff-GmbH
    Inventor: Franz Xaver Greisel
  • Patent number: 5709747
    Abstract: The process and apparatus of the present invention teaches how to treat a well-integrated woven or non-woven web of hydrophobic fibers to make selective areas hydrophyllic. It also can be used to make a web of hydrophyllic fibers selectively hydrophobic. It uses a plurality of selectively adjustable covers on an applicator roll rotating in a bath of liquid to place the liquid material on selective areas of the moving web. In a preferred embodiment the web is non-woven and the fibers are hydrophobic in nature, e.g., dry-laid or melt-blown polypropylene or polyethylene fibers or spun-bonded hydrophobic filaments. A woven web made of cotton or other hydrophyllic fibers may also be used if the end result is to create partially hydrophobic areas on a hydrophyllic web. The areas of liquid are positioned on the web only where desired so as to eliminate the excessive cost of unwanted and unnecessary coating material. If the web is hydrophobic, the liquid makes that area hydrophyllic.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 20, 1998
    Assignee: Avgol Nonwoven Industries
    Inventor: Moshe Goldwasser
  • Patent number: 5607728
    Abstract: An apparatus for coating a web by contact with a transfer roll partially immersed in a reservoir of coating material and rotated into resin-transferring contact with the web on a first main web surface thereof. The web in passage away from the transfer roll is contacted on a second main surface of the web, the second main surface being opposite the first main surface of the web, by a medial main cylindrical portion of a stepped squeegee roll comprising a medial main cylindrical portion of a first relatively smaller diameter, and marginal shoulder portions each of a second relatively larger diameter in relation to the diameter of the medial main cylindrical portion. The stepped squeegee roll is tensionally biased toward, but in spaced relationship to the transfer roll, being maintained in tensionally biased relationship by spring or other tensionally biasing means, to limit the coating material thickness on the web.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: March 4, 1997
    Assignee: Loctite Corporation
    Inventors: Jonathan W. Bremmer, Martin C. Cosgrove, Bernard M. Malofsky
  • Patent number: 5516365
    Abstract: Paper or cardboard webs are coated by dipping an applicator roll in the liquid coating material and forming a uniform coating on that roll with a grooved doctor bar before applying the coating to the web against a drum. Thereafter, any excess is removed from the web by a doctor blade which is pressed against the web while it is on the drum.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: May 14, 1996
    Assignee: Jagenberg Papiertechnik GmbH
    Inventors: Cato Sandberg, Reinhard Knop
  • Patent number: 5506005
    Abstract: Investigations have shown that curtailing the entry of air between the coater backing roll (3) and the web (5) being coated can offer a significant reduction in the number of uncoated blotches. By virtue of preventing the occurrence of such coat defects, the rotational speed of the kiss roll (2) in kiss roll coaters can be reduced. The invention is based on pressing the web (5) being coated against the backing roll (3) from the opposite side of the web (5) relative to the backing roll (3) at a point preceding the nip between the kiss roll (2) and the backing roll (3), whereby air is prevented from entering between the web (5) and the backing roll (3). The means employed for pressing the web (5) against the backing roll (3) is an air jet to avoid imposing additional stress on the web.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: April 9, 1996
    Assignee: Valmet Corporation
    Inventor: Petri Paloviita
  • Patent number: 5460119
    Abstract: In a device for coating a web of material, particularly a paper or cardboard web, the swivel mechanism of the coating mechanism and/or of the dosing system each have in addition to the cylinder units effecting the swinging motion from the servicing position into the working position, a hydraulic piston-cylinder unit pressing the swivel arms from the working position into an intermediate position. In this way the coating mechanism and/or the dosing system can be swung every quickly into the working position at the counter-roller and also swung away very quickly from the latter.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: October 24, 1995
    Assignee: Jagenberg Aktiengesellschaft
    Inventor: Herlbert Maroszek
  • Patent number: 5413806
    Abstract: A continuous strip coating machine has top and bottom applicator rolls and a backup roll adjacent the top applicator roll. A lift roll to lift the strip of material and thus vary the angle of wrap of the strip about the bottom applicator roll is provided. The use of the lift roll in turn varies the pressure between the strip and the roll and thus the thickness of the coating applied to the strip bottom. Thickness may be measured indirectly by measuring pressure of the strip on the applicator roll. Thickness may also be measured directly. Oscillations of the strip in a drying oven may also be sensed and compensated for. Feedback control is used with the thickness measuring techniques to control the coating thickness by varying angle of wrap, relative speed between the applicator roll and strip, and/or nip pressure between the applicator roll and a transfer roll that transfers coating material to the applicator roll.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: May 9, 1995
    Assignee: Hunter Engineering Company, Inc.
    Inventor: Curt Braun
  • Patent number: 5368893
    Abstract: A coating device includes a transfer roller communicating with a bank of coating material and engaging a web of material to be coated, a squeegee bung mounted to resiliently press against a periphery of the transfer roller and to define a contact surface across which the coating material flows, and a counter roller provided with an air blade for final dosing of the coating material applied to the web.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: November 29, 1994
    Assignee: Jagenberg Aktiengesellschaft
    Inventors: Herbert Sommer, Gunter Franz
  • Patent number: 5330575
    Abstract: A trough having an upstream end and a downstream end removably carrying an applicator roller rotated by driving means and a scraper bar, the scraper bar upstream of and adjacent the applicator roller, and a pressure area downstream of the applicator roller. A lid hingedly coupled to the trough, carrying an outfeed roller downstream of the scraper bar for guiding wallpaper over the applicator roller and the scraper bar.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: July 19, 1994
    Assignee: Blackhawk Metal Products, Inc.
    Inventors: Robert N. Poole, Daniel L. Poole
  • Patent number: 5316581
    Abstract: A liquid applicator with reservoir within a housing with a slot through which the material, or in this embodiment, the envelope flap, is drawn to activate the previously applied adhesive thereon.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: May 31, 1994
    Inventor: Tadeusz Staniszewski
  • Patent number: 5250318
    Abstract: A book binding process and apparatus are shown wherein polyurethane adhesive (PUR) attaches a crepe portion of a book binding to a book block and hot glue attaches the crepe portion to the book cover. The PUR delivery system includes an inclined trough positioned adjacent a polyurethane adhesive delivery roll. A polyurethane adhesive source delivers polyurethane adhesive upon the inclined surface of the trough and the polyurethane adhesive is metered onto the roller as a function of the separation of the leading edge of the trough and the roller.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: October 5, 1993
    Inventor: John C. Tooker
  • Patent number: 5230737
    Abstract: The wallpaper pasting apparatus characterized in that the wallpaper pasting apparatus is provided with a pasting roller and a pressing guide for pressing the wallpaper against the upper surface thereof, by a plurality of levelling plate means having edge wavy grooves for adjusting the thickness of the paste layer transferred onto the wallpaper.This apparatus has a simple structure and a light weight, and permits easy and accurate adjustment of the thickness of the paste layer.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: July 27, 1993
    Assignee: Kyokutosanki Co., Ltd.
    Inventors: Toshinari Takada, Yusuke Yokota, Arata Koroyasu, Yasuaki Matsui
  • Patent number: 5203920
    Abstract: A coating section for coating a traveling web of material, such as paper, wherein the web to be coated travels along a selected one of two different web paths. There is a lower counter roll and an upper press roll which define a nip between them and the distance apart of the two rolls is adjustable. A respective applicator for coating composition is on each of the first and second sides of the lower roll and on the third side of the upper roll, and the third side is the same side of the coating section as the first side of the lower roll. First web guide rollers guide the web from below, past the counter roll and the first applicator and not through the nip. Second guide rollers guide the web through the nip.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: April 20, 1993
    Assignee: J.M. Voith GmbH
    Inventor: Anton Plomer
  • Patent number: 5057337
    Abstract: A pair of solder coating rolls are disposed horizontally adjacent one another for rotation about parallel horizontal axes, and are spaced apart to define a narrow vertically-oriented nip therebetween for accommodating a lead frame therein. Lower parts of the rolls contact a solder bath, and counter rotation of the rolls carries the solder upwardly on the periphery of the rolls to create a small pool of solder at the upper end of the nip. The lead frame is driven vertically upwardly through the nip, which nip has a minimal dimension greater than the lead frame thickness. The lead frame is driven vertically upwardly at a linear speed which is different from, and preferably slower than, the peripheral speed fo the solder coating rolls. This enables preheating of the surface of the lead frame due to its longer exposure to and contact with the hot solder which coats the periphery of the rolls, thereby improving the wetability of the lead frame surface.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: October 15, 1991
    Assignee: Fuji Seiki Machine Works, Ltd.
    Inventors: Shinichi Makino, Naokatsu Kojima
  • Patent number: 5024180
    Abstract: A moistener for stamps and envelopes is provided which includes a durable metal roller providing even water flow across the roller. The roller is made for continuous use with water for the purpose of moistening a layer of dried glue, which has been previously applied on envelopes, stamps, dried glued labels, and other materials which are used for adhesion in mail related objects. The roller includes a specific knurling pattern for a uniform flow of a thin layer of water across the roller. By the knurled pattern, a series of tiny water pockets are formed. Water transferred from a reservoir to the roller during rotation of the roller is held within these tiny pockets and the water, due to surface tension, extends between adjacent pockets and above diamond-shaped projections to produce a thin film of water protruding above the uppermost peripheral surface of the roller.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: June 18, 1991
    Inventor: Lorand J. Roman
  • Patent number: 5007370
    Abstract: A device for moistening tape is disclosed. The tape is moistened by a roller having a resilient, sorbent felt material on its surface. The surface of the roller is wetted by capillary action as well as by the rotation of the roller in the reservoir. The roller is driven by a conveyor that engages the surface of the roller and advances tape between the roller and the conveyer as the roller rotates.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: April 16, 1991
    Inventor: Hugh St. L. Dannatt
  • Patent number: 5006195
    Abstract: Apparatus for printing, folding, and sealing a one-piece form sheet to prepare a self-mailer. The apparatus includes a substantially conventional printer, which may be a laser printer, suitable for use with a personal computer. The printer is mounted above and outputs printed form sheets downwards to a folder sealer for folding and sealing to prepare a self-mailer. The folder sealer includes a folder having a central and peripheral rollers and curved, one-sided, open buckle chutes for folding the form sheet and delivering it to a transport which extends under the printer. The folder sealer also includes moistening apparatus for moistening areas on the form sheet to which a remoistenable glue has been applied.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: April 9, 1991
    Inventors: Samuel W. Martin, Steven A. Supron
  • Patent number: 4793892
    Abstract: An apparatus is described for the continuous production of glass fiber mesh reinforced concrete panels consisting of a layer of light weight concrete core mix bonded to a web of glass fiber mesh on each face. An uncured ribbon of reinforced concrete is first formed, suitable for cutting into individual panels. A new method of depositing the cement slurry or core mix on the web of fiber glass has been developed; this is accomplished by conveying the web over a reversely-turning pumping roller which transfers a controlled amount of slurry or core mix to the web.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 27, 1988
    Assignee: Glascrete, Inc.
    Inventors: Robert G. Miller, Richard J. Walter
  • Patent number: 4786931
    Abstract: Disclosed is an image recording apparatus which allows an image to be formed on an image receiving material by transferring an image recorded on a heat-developable light-sensitive material thereto in the presence of an image forming solvent. The rotational speed of a roller for coating the solvent onto the light-sensitive material or the image receiving material is controlled in the vicinity of the backward end of the light-sensitive material or image receiving material at a predetermined value or below. In consequence, suitable control of the amount of solvent to be applied is enabled.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: November 22, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Saito, Yoshiyuki Monma, Shin-ichi Ichikawa
  • Patent number: 4775434
    Abstract: A resin-stripping die for mounting in a holder on a filament winding machine comprising a body formed of resiliently flexible heat and wear resistant material with a converging, preferably tubular, passage which is slit longitudinally at one side throughout its full length to permit lateral movement of the die onto and off a filament strand. In operation, the die is mounted in a fixed axial position in the holder.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: October 4, 1988
    Inventor: J. Albert Rolston
  • Patent number: 4770909
    Abstract: Metered application of coating materials, ranging from room temperature to hot melt coatings and adhesives, through the use of fluid-porous roll applicators operating singly or in multiple units for transfer or direct coating, including simultaneous continuous or intermittent patterns and simultaneous different weight pattern coatings or different material coatings.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: September 13, 1988
    Assignee: Acumeter Laboratories, Inc.
    Inventor: Frederic S. McIntyre
  • Patent number: 4677002
    Abstract: An apparatus and method for applying a smooth uniform coating to a web (W) having variations in thickness and density and surface irregularities is disclosed. The invention includes a vertical floating pressure table (B) which supports the traveling web (W) against a transfer roll (20) and a scrape blade (46). Coating material (C) metered by a doctor blade (34) is applied to the transfer roll (20) at (40) and then applied to the web in a uniform layer (78). The pressure table (B) is supported against the web by a counter-balancing linkage arrangement (D) which maintains a constant uniform pressure on the table (B) and web (W) regardless of the vertical movements of a table platform (60) in response to web variations an irregularities. A smooth uniform coating (80) is provided.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: June 30, 1987
    Inventor: Robert J. Poterala
  • Patent number: 4672705
    Abstract: A method for the continuous and uniform application of controlled amounts of treating liquor on a liquid receptive material web comprising passing the web over a counter-roll having a resilient, non-skid surface and then passing the web onto an applicator roll with a metallic cylinder surface that has been dipped into a vat of treating liquor and making the treating liquor a uniform film on the roll. The treating liquor is tested before use by placing a quantity of the liquor in a mixing container, rotating the container for a first period and measuring the volume of treating liquor plus foam that develops in the container, and making two subsequent volume readings after further periods of time, adding all of the volume readings and comparing the sum with a standard value, and also determining that each volume reading is less than the preceding reading, and rejecting treating liquor which does not meet the foregoing requirements.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: June 16, 1987
    Assignee: Triatex International AG
    Inventors: Hans Bors, Peter Egger, Albert Gotz, Martin Schwemmer
  • Patent number: 4582019
    Abstract: An apparatus for applying glue to a wallpaper which is passed therethrough along a drive direction includes a frame which is adapted to hold glue, a glue application roller mounted on the frame, a rerouting roller in parallel with, and downstream of the application roller, as seen along the drive direction, and adapted to be in operative engagement with the glue application roller through the wallpaper, and a drive motor in direct driving connection with the rerouting roller.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: April 15, 1986
    Inventor: Ludwig Barschneider
  • Patent number: 4561377
    Abstract: Resin evenly applied to the surface of rotatable drive roller applicator is worked into the fibers of a band of fibrous material one ply thick by fiber tension, without abrasion. Resin is pumped to the roller applicator through a spring loaded applicator block in sealing contact with the surface of the applicator. The resin is pumped by a piston and cylinder pump at a rate determined by the rate of rotation of the applicator roller and thereby in accordance with the rate at which the fibrous band is pulled from the surface of the roller.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: December 31, 1985
    Assignee: Morton Thiokol, Inc.
    Inventor: Dean Youngkeit
  • Patent number: 4524714
    Abstract: A pasting machine having paste applicator roll, a feed roll rotated in a direction opposite to the direction of rotation of the applicator roll and a guide plate surrounding a circumferential region of the applicator roll, said guide plate taking up paste from the feed roll by means of a longitudinal edge facing the periphery of the feed roll and forcing said paste against the said circumferential region so as to uniformly coat the applicator roll with a layer of paste.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: June 25, 1985
    Inventor: Paul Hohenhovel
  • Patent number: 4503801
    Abstract: A method of dispersing a substance in a thin flexible substrate of open-celled foam structure comprising continuously moving a sheet of the substrate, applying the substance to the substrate in a melted condition at an elevated temperature, compressing the substrate, subsequently allowing the substrate to expand to its normal size and thereby draw the melted substance into the open-celled structure to impregnate the substrate and cooling the substrate to solidify the impregnated substance. The method is preferably carried out using apparatus incorporating means for controlling the quantity of substance applied to the substrate by an applicator roller and arranged to permit the substrate to expand while still in contact with the applicator roller.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: March 12, 1985
    Assignees: Caligen Foam Limited, W. E. Saxby (Nottingham) Limited
    Inventors: Peter S. Collishaw, Michael Wilkinson
  • Patent number: 4495890
    Abstract: A portable coating apparatus is described for use with a paper converting machine such as a corrugated paperboard double-backer. Rotational power to drive gravure, transfer and smoothing rolls is extracted from the converting machine supply web by an S-wrap through the loaded nip between a pair of drive rolls. A low-powered auxiliary drive motor is automatically engaged to keep the gravure and transfer rolls conditioned with coating during brief intervals of web feed cessation. The entire unit is constructed on a space frame that is supported by caster wheels to facilitate movement to and from an appropriate converting machine position which may be between the reeled web supply unwind stand and a web preheating drum station leading into a double-backing machine.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: January 29, 1985
    Assignee: Westvaco Corporation
    Inventors: Willem A. Nikkel, John B. Young
  • Patent number: 4493197
    Abstract: Described is a foulard machine with the minimum possible application of liquor. For this purpose, a wiper is held against the circumference of an enlacing roller by means of forces of magnetic repulsion. The wiper has a plurality of recesses or indents next to one another which act to convey the liquor. Any out-of-rounds of the enlacing roller are compensated for by the forces of magnetic repulsion so that the wiper abuts against the circumference of the roller uniformly over its entire length.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: January 15, 1985
    Inventor: Hans E. Meiler
  • Patent number: 4480582
    Abstract: An improvement in the type of apparatus for applying adhesive to sheet materials wherein the sheet material is fed between a feed roller and an adhesive coated coating roller, and stripping elements thereafter strip the adhesive coated sheet material from the coating roller. The improvement comprises a main support mounted for rotation about the axis of the cleaning roller, the feed roller and the stripping elements being mounted on the main support for rotation therewith from an operating position to a cleaning position.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: November 6, 1984
    Inventor: Charles Schaefer
  • Patent number: 4377983
    Abstract: A wallpaper pasting machine comprises a tray for the paste, rollers for transferring paste to the paper and guide means extending across the tray for training the paper over the rollers. The guide means are engaged by resilient side wall portions of the tray and are removable by deforming the side wall portions. A cutting template for guiding the cutting of the paper is also described.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: March 29, 1983
    Assignee: Skarsten Manufacturing Co., Ltd.
    Inventor: Stephen R. Skarsten
  • Patent number: 4374873
    Abstract: The metallic strip is displaced in a non-oxidizing gaseous atmosphere above and at a small distance from the surface of the coating bath and in contact with a coating cylinder driven to rotate in a direction opposite the direction of travel of the strip, so as to transfer onto the lower surface of the strip a thick layer of the coating material. Apparatus is arranged downstream of the coating cylinder to produce a jet of non-oxidizing gas directed to extend over the entire width of the strip, so as to adjust to a predetermined value the thickness of the coating layer.
    Type: Grant
    Filed: November 4, 1980
    Date of Patent: February 22, 1983
    Assignee: Phenix Works Societe Anonyme
    Inventors: Albert Piedboeuf, Victor Polard, Andre Cornez
  • Patent number: 4354449
    Abstract: Two side coaters and methods of coating paper on both sides are disclosed in which a web of paper to be coated is moved in a generally upward direction in partially wrapped relation to a coating roll, so that one side of the web is in contact with and supported by the roll. This one side of the web is coated by a first coating material which is applied by the coating roll. This coating material is applied to the coating roll by an applicator roll, either directly in which a puddle is formed between the applicator roll and the coating roll, or through transfer from a pair of metering rolls in which the coating puddle is formed between the metering rolls.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: October 19, 1982
    Assignee: The Black Clawson Company
    Inventor: Stanley C. Zink
  • Patent number: 4300471
    Abstract: An apparatus for applying wallpaper which moistens prepasted wallpaper or applies paste to unpasted wallpaper and guides the paper as it is withdrawn from the roll and applied to the wall. The apparatus includes a base for rotatably supporting a roll of wallpaper and a frame attached to the base for supporting at least one pair of rollers for guiding the wallpaper through a trough partly filled with a liquid such as water or paste. The apparatus for use with paste has one roll in the trough of paste and a further roll for transfering paste from the roll to the paper.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: November 17, 1981
    Inventor: J. C. Guy Desjardins
  • Patent number: 4282275
    Abstract: A metered film of a fluid coating composition (10) having solids suspended therein, such as a fluid composition containing rupturable microcapsules, is formed on a doctored gravure supply roll (12) and applied to a soft rubber applicator roll (20). The supply roll (12) transfers the metered coating composition (10) to an endless web (25) which is wrapped and tensioned therearound in substantially uncompressed contact, to transfer the metered coating composition uniformly and evenly to the web (25) without shearing the composition (10) when on the web (25) or mechanically pressing the solids therein into the web (25).
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: August 4, 1981
    Assignee: The Mead Corporation
    Inventor: Charles E. Werner
  • Patent number: 4267215
    Abstract: Process and apparatus for applying a flowable coating medium to a travelling web by a reverse applicator roll technique in which the peripheral velocity of the applicator roll (U) is maintained at less than 0.4 of the forward speed of the web, and the dynamic viscosity of the coating medium (.eta.) is selected in accordance with the relationshiph=k.eta..sup.0.5 U.sup.0.5,wherein k is from 0.01 to 100, such that a layer of coating medium of equilibrium thickness (h) not exceeding 5.0 mm is entrained on the surface of the applicator roll for transfer to the web. The technique avoids the use of a doctor blade to meter the amount of coating medium on the applicator roll, and is suitable for the high speed application of a heat sealable coating layer onto a polymeric packaging film. Coating quality can be improved by stabilizing the web downstream of the applicator roll.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: May 12, 1981
    Assignee: Imperial Chemical Industries Limited
    Inventor: Aubrey F. Riggs
  • Patent number: RE31695
    Abstract: Two side coaters and methods of coating paper on both sides are disclosed in which a web of paper to be coated is moved in a generally upward direction in partially wrapped relation to a coating roll, so that one side of the web is in contact with and supported by the roll. This one side of the web is coated by a first coating material which is applied by the coating roll. This coating material is applied to the coating roll by an applicator roll, either directly in which a puddle is formed between the applicator roll and the coating roll, or through transfer from a pair of metering rolls in which the coating puddle is formed between the metering rolls.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: October 2, 1984
    Assignee: The Black Clawson Company
    Inventor: Stanley C. Zink