With Means To Strip Work From Applicator Patents (Class 118/245)
  • Patent number: 6168661
    Abstract: The invention relates to a method and apparatus for coating both sides of a thin metal strip with electrochemically active material by the use of coating rod mechanism acting on a single side of the metal strip. The method is preferably carried out by applying the coating to one face of the strip drawn from the supply roll, changing the orientation of the strip, coating the opposite side of the strip and drying the coated sides. The dried and coated strip may be wound up on a take up reel. In the preferred embodiment, the strip from the feed roll first passes a web guide which reverses the direction of travel of the strip before the first side is coated. The strip then passes around a second web guide which again reverses the strip direction of travel before the second side of the strip is coated and the coated strip is dried.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: January 2, 2001
    Assignee: Johnson Controls Technology Company
    Inventor: John P. Dinkelman
  • 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: 5849145
    Abstract: A device and the related process for the continuous, warm smearing of a thin, hotmelt adhesive layer onto a plastic film (8) to be coupled with a paper support, comprising a blade (1) dosing device for the hotmelt adhesive, with means for adjusting the width of the adhesive strip to be applied as well as the thickness of the same; also comprising a further device for applying the adhesive onto said plastic film, mainly consisting of coupled dispensing roller means (2) and pushing roller means (3); sensor means (5) for bearing and adjusting the detachment position from the dispensing roller means (2) of the smeared film (8), and a device for further spreading and leveling of the film (8) consisting of the coupling of the spreading roller means (4) with pushing roller means (3), wherein the spreading roller means (4) may be possibly artificially cooled down.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: December 15, 1998
    Inventor: Alberto Tornetti
  • 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: 5160763
    Abstract: This invention involves a system for minimizing the formation of glue drops on picks used to separate a sheet from the surface of a glue applicator drum from which a coating of adhesive is applied to the sheet. Spreader means are provided to wipe from the upstream surface of the drum at least a major portion of the adhesive that lies in the path of each pick.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: November 3, 1992
    Assignee: Crathern Engineering Co., Inc.
    Inventors: John D. Mims, Thomas M. Porat
  • Patent number: 5153642
    Abstract: An apparatus in which an elecrostatic latent image recorded on a photoconductive member is developed with developer material stored in a developer housing. The developer material advances along a path of travel to a development zone closely adjacent to the latent image. A cleaner, positioned in the path of the developer material and spaced from the photoconductive member, cleans contaminants from the developer material without impeding the flow thereof. The cleaner has a multiplicity of fibers disposed in the path of travel of the developer material.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: October 6, 1992
    Assignee: Xerox Corporation
    Inventors: Jeffrey J. Folkins, Don B. Jugle
  • Patent number: 5125644
    Abstract: This invention relates to a separating pawl installed in a copying machine wherein at least an edge of the separating pawl is composed of an amorphous carbon layer; the edge of the separating pawl being in contact with a surface of a photosensitive member on a surface of a fixing roller to separate a sheet like member.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: June 30, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenji Masaki, Shuji Iino, Isao Doi, Izumi Osawa
  • Patent number: 4763370
    Abstract: An apparatus for dyeing leather has an application roller and a backup device defining a gap therebetween. The application roller has recesses, and dye is supplied to it to fill the recesses. Sheet articles, e.g. leather pieces, are fed through the gap. The apparatus is operated so that a uniform coating of dye is continuously spread over one surface of the article by the application roller. The dye can have a low viscosity comparable to that of water.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: August 16, 1988
    Inventors: Darko Mance, Vitomir Mance
  • Patent number: 4743330
    Abstract: An improved method and apparatus for applying adhesive to a backing fabric, such as for adhesively laminating a secondary fabric backing to a carpet. The adhesive is formed into a layer of predetermined thickness on the surface of a rotating casting roller, and the backing fabric is conveyed along a path adjacent to the casting roller in a direction opposite to the direction of rotation of the casting roller. A press blade brings sucessive portions of the backing fabric into contact with a portion of the casting roller, and the adhesive layer on the casting roller is transferred to the backing fabric at an adhesive contact point. The backing fabric is then conveyed abruptly away from the casting roller at the adhesive contact point in a substantially radial direction.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: May 10, 1988
    Inventor: John G. Tillotson
  • Patent number: 4738877
    Abstract: A coating material is transferred to the surface of a spreader-roll from a spreader-mechanism. The spreader-roll is partly wrapped by a strip of material. In the location where the said strip of material is lifted off the spreader-roll, a doctor-element, comprising a doctor-blade, is arranged to rest tangentially on the spreader-roll. The doctor-element thereby forms a rubbing distributing surface which faces the strip of material and ensures a smooth and uniform coating of the coating material on the strip of material. The strip of material is then carried away over a sharp tear-off edge on the doctor-element at an angle of less than 20.degree.. In this way a coating of any desired thickness may be applied to a strip of material, more particularly as a coating for a strip of paper.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: April 19, 1988
    Assignee: J. M. Voith, GmbH
    Inventor: Franz Krautzberger, deceased
  • Patent number: 4524715
    Abstract: An apparatus is disclosed for applying a coating material to a sheet material which is particularly useful in connection with preventing evaporation or drying out of the coating material when the apparatus is not in use. The apparatus basically includes a reservoir for containing a supply of coating material and an applicator roll having an applicator surface or surfaces thereon which is rotatably mounted in the reservoir so that coating material is received by the applicator surfaces and applied to the sheet material which is placed in contact therewith during rotation of the applicator roll.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: June 25, 1985
    Inventor: William C. Abrams
  • Patent number: 4523541
    Abstract: An apparatus and process for applying thermoplastic adhesive in a dot pattern to flexible die-cut parts, such as shoe parts. The apparatus includes a tank with a removable bottom and heating elements within the removable bottom of the tank, a mixing roll, an applicator roll having a pattern of indentations over the entire surface, a primary wiper, a secondary wiper, a pressure roll and a number of stripping fingers which ride in grooves in the applicator roll.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: June 18, 1985
    Assignee: The Louis G. Freeman Company
    Inventors: D. Bruce Freeman, Bernard G. Kesse, Philip P. Thiel
  • Patent number: 4487158
    Abstract: Fuser apparatus including a fuser member movable along a continuous path having a layer with a surface for fusing a toner image carried by a support brought into contact with the fusing surface. The layer is preferably resilient and includes at least one continuous tunnel disposed beneath the surface and a self-sealing slit communicating between the tunnel and the surface. A support-separating member is provided having an end configured to penetrate the slit and to follow in the tunnel as said fuser member is moved along the continuous path to separate a support from the fuser member.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: December 11, 1984
    Assignee: Eastman Kodak Company
    Inventor: Walter Kayson
  • Patent number: 4480581
    Abstract: A machine for sequentially manufacturing a plurality of reinforced substrates such as shoe uppers, comprising a powder deposition station wherein a stencil assembly applies powder onto an annular receiving belt, the powder being applied in a three-dimensional configuration because of peripheral spacer means arranged on the cut-out between the stencil and the receiving surface. The annular receiving surface is empowered to rotate to an arcuate heating station where the powder is fused by heating elements arranged thereabove and therebelow. The fused powder is then moved to a join and cool station where a substrate is pressed against the fused powder by a transfer means causing it to press against a chill plate therebeneath.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: November 6, 1984
    Assignee: USM Corporation
    Inventors: Robert C. Simmonds, Jr., Andrew J. Gilbride, John F. Martin
  • 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: 4471692
    Abstract: A device for the printing of flexible flat parts such as cuts or single parts of fabrics, wefts, fleeces, leather, furs or the like with pasty substances in the photogravure printing process. The device has a printing roller to be painted with paste, and a counter-print roller with print gap therebetween. In the area of said gap a group of adjacent yarns runs around a part of the periphery of the printing roller, and is then drawn off above a discharge device for the flat parts from the printing roller. This yarn group is moved at a velocity differing from that of the periphery of the printing roller. It can be moved either in the same or opposite direction as the peripheral motion of the rollers in the area of the printing gap. This makes possible an exact deposit of the printed flat parts on the discharge device and also reduces the paste consumption, with the minimum of constructional costs.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: September 18, 1984
    Assignee: Kufner Textilwerke GmbH
    Inventor: Josef Hefele
  • Patent number: 4419957
    Abstract: An adhesive coating apparatus for coating sheet-like materials incorporates an adhesive trough and a roll system for coating the materials wherein the adhesive trough and roll system are arranged in a housing provided with an opening for the materials to be coated, this opening being provided in a horizontal cover plate of the housing which can be closed off by a flat cover resting on the housing cover plate. Strippers are disposed vertically above the adhesive trough with the adhesive trough as well as the roll system being fixedly attached relative to the cover plate.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: December 13, 1983
    Assignee: Claus Koenig KG
    Inventor: Wolfgang Voges
  • Patent number: 4389964
    Abstract: In an apparatus for applying a protective substance to a welding seam of a metallic sleeve, including a frame, a container disposed within the frame holding a protective substance, a drivable applicator roller disposed in the container at least in part contact with the protective substance and applying the protective substance to the seam of the metallic sleeve within a substance transfer region, and wherein the sleeve moves towards, past and away from the applicator roller, comprising in combination therewith, a stripper disposed within the transfer region on each side of the seam removing any excess substance leaking away laterally from the seam.
    Type: Grant
    Filed: November 17, 1981
    Date of Patent: June 28, 1983
    Assignee: Frei AG Maschinenbau
    Inventor: Siegfried Frei
  • Patent number: 4325321
    Abstract: Wipers are mounted on the opposite ends of a cylindrical glue wetting roll which direct the glue adhering to and moving upwardly with the flat end surfaces of the glue wetting roll first inwardly toward the axis of rotation of the glue wetting roll and then back to the glue pan. The glue applicator roll which picks up the glue from the glue wetting roll includes a ceramic coating about its annular surface which is contacted by the sheet material to which the glue is applied and by the picker fingers which pick the sheets from the roll.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: April 20, 1982
    Inventor: Paul Wahnschaff
  • Patent number: 4300472
    Abstract: A solvent type cementer for applying a uniform thin layer of solvent cement to one side of flat work pieces, such as, for example, sock linings, innersoles, watch bands, bill folds, belts and the like. The solvent type cementer comprises an enclosure for containing the solvent cement, a cement applying roller partially disposed within the enclosure and in contact with the cement, a pair of rolls mounted adjacent the cement applying roller for flexing the flat work pieces against the roller and a drive of unitary construction characterized by being driven by a single pulley.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: November 17, 1981
    Assignee: Boston Machine Works Company
    Inventor: Robert W. Morin
  • Patent number: 4281623
    Abstract: A couple of copy sheet stripping members are provided for scraping away a copy sheet adhered strictly to one of two rollers which are driven to fix images of an original document on the copy sheet in pressure engagement. At least one of the copy sheet stripping members is secured removably from the roller while the copy sheet is not transferred out of the rollers. The copy sheet stripping member becomes pressed against the roller in accordance with the transferring of the copy sheet which is detected by a sensing means. The copy sheet stripping member is free of residue attached on the roller because the period of time where the engagement between the roller and the copy sheet stripping member is kept is very short. The other copy sheet stripping member can be further disposed to assure both the scrape of the copy sheet and the removal of the residue on the roller, the copy sheet stripping member being continuously pressed against the roller.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: August 4, 1981
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tutomu Kato, Susumu Houjyo
  • Patent number: 4263869
    Abstract: Wipers are mounted on the opposite ends of a cylindrical glue wetting roll which direct the glue adhering to and moving upwardly with the flat end surfaces of the glue wetting roll first inwardly toward the axis of rotation of the glue wetting roll and then back to the glue pan. The glue applicator roll which picks up the glue from the glue wetting roll includes a ceramic coating about its annular surface which is contacted by the sheet material to which the glue is applied and by the picker fingers which pick the sheets from the roll.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: April 28, 1981
    Inventor: Paul Wahnschaff
  • Patent number: 4252596
    Abstract: A laminate composed of a web of carrier material and a thick layer of contact adhesive thereon wherein the thick layer is composed of a series of thin layers of contact adhesive which are bonded together. Methods and apparatuses are disclosed for preparing the laminate. Using such methods and apparatuses, thick layers of contact adhesive may be simply and economically produced.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: February 24, 1981
    Assignee: Sachs-Systemtechnik GmbH
    Inventor: Egon Fuglein
  • Patent number: 4173199
    Abstract: A method and apparatus for reinforcing a fabric, wherein a grooved printing member prints on the fabric a strongly directional pattern of lines of fluid reinforcing material having a Brookfield viscosity of from 10,000 to 25,000 centipoise, the reinforcing material being set or cured in a heater.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: November 6, 1979
    Assignee: Codama Holding S.A.
    Inventor: Cassiano Fassina
  • Patent number: 4168902
    Abstract: An apparatus for peeling off the leading edge of a sheet of paper adhering to a moving transfer image carrier during the process of transferring a powder image onto the sheet. The apparatus includes one stripper member or a plurality such as three stripper members mounted in the vicinity of the transfer image carrier at the side on which the sheet is intended to be detached from the same. The one or several stripper members engage the moving sensitive surface of the image carrier at a balanced extremely low contact pressure and are adapted to be lifted off this surface by a peeled-off sheet of copying material. The strippers are continuously reciprocated in a direction transversely of the transfer image carrier and thereby likewise transversely of the advancing sheet so that the problem of traces that may be engraved into the surface of the transfer image carrier is virtually overcome and the useful life of the image carrier is substantially extended.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 25, 1979
    Assignee: Lumoprint Zindler KG (GmbH & Co.)
    Inventor: Horst Golz
  • Patent number: 4168830
    Abstract: Apparatus for separating a sheet of paper to which a developed toner image has been transferred from a moving photoconductive surface by directing a high velocity flow of air against an edge of a leading portion of the sheet on the surface to separate said portion, and exerting pneumatic pressure on the separated sheet portion to separate the remainder of the paper from the photoconductive surface. The high velocity air stream is pulsed to coincide with the arrival of the paper edge at a predetermined point in the separating apparatus.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: September 25, 1979
    Assignee: Savin Corporation
    Inventors: Tatsu Hori, Kenneth W. Gardiner, Norman F. Mangal
  • Patent number: 4156524
    Abstract: Sheet stripping mechanism for effecting removal of copy sheets, having toner images substantially fused thereto, from a heated fuser member forming a part of a xerographic or the like, reproducing apparatus. The sheet stripping mechanism is characterized by the provision of a stripping blade which is substantially coextensive with the dimension of the copy sheet to be stripped from the fuser member. The blade is attached to a pivotal support structure by means of a heat insulating block interposed between the blade and the pivotal support. A pair of springs serve to bias the blade into contact with the heated fuser member, the pivot point of support members being in line with the plane of the blade whereby the blade during stripping is substantially tangential to the surface of the heated fuser member.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: May 29, 1979
    Assignee: Xerox Corporation
    Inventors: Ari Bar-on, Louis R. Hattler
  • Patent number: 4119057
    Abstract: Wiper blades are mounted on the end bearing blocks and are located at each end of a rotatable cylindrical glue applicator roll and are arranged to wipe the glue from the flat ends of the applicator roll and from the end portions of the annular surface of the applicator roll. The wiper blades include a horizontal leg having a concave roll contact surface normally in engagement with the end curved portion of the cylindrical roll and a flat surface in contact with the flat end of the roll. A portion of the wiper blade adjacent the flat end of the roll is angled between a tangent and a radius from the axis of rotation of the roll on the downward moving side of the roll and includes a groove for deflecting and guiding the glue in a downward direction off the flat end of the roll.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 10, 1978
    Inventor: Paul Wahnschaff
  • Patent number: 4080159
    Abstract: Stripping apparatus for stripping copy sheets from oil wetted fuser roll surface. Apparatus including stripping finger supported on oil film through dynamic generation of pressure under bottom pad surface of stripping finger in contact with fuser roll by rotational motion of fuser roll.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: March 21, 1978
    Assignee: Xerox Corporation
    Inventor: Eugene Behun
  • Patent number: 4065120
    Abstract: Slidably and pivotally mounted means for stripping copey paper from one or both rolls of a fuser assembly in a photocopying machine. Spring means urging the stripping means into contact with a roll is normally countered by a component of frictional force exerted by the roll on the stripping means, thereby avoiding exertion of undue pressure on the roll. If copy paper becomes adhered to and cannot be detached in a normal manner from the roll, the stripping means is moved to a position in which the tip portion thereof no longer contacts the roll, thereby avoiding damage to the roll and stripping means.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: December 27, 1977
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Masaru Imaizumi, Syotaro Inagaki
  • Patent number: 4062534
    Abstract: A stripping mechanism for removing copy paper from a heated fuser roll includes a first pair of stripping pawls spaced a first distance suitable for optimally stripping copy paper of a first size and a second pair of stripping pawls supported independently from the first pair and spaced a second distance suitable for optimally stripping copy paper of a second size. The first and second pairs of pawls contact the fuser roll at different locations along the circumference thereof.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: December 13, 1977
    Assignee: Rank Xerox Ltd.
    Inventor: Akira Sasahara
  • Patent number: 4006704
    Abstract: A gluing machine employs substantially linear conveying motion and has easily installed change parts, which adapt the machine to handle thin paper or relatively heavy cardboard. A vacuum head with compound motion delivers a sheet of cardboard or paper from a vertical stack by lifting the leading edge and advancing it substantially horizontally between drive rolls which deliver the sheet under a glue roll. A glue spreader roll is mounted on eccentrics for adjusting its spacing from the glue roll. For relatively stiff sheets, a pair of removable presser rolls under the glue roll continuously flex the moving sheet into close contact with the glue roll and the sheet is delivered onto a dual compartment vacuum conveyor for positive ejection and accurately timed delivery to a downstream processing station. The presser rolls are replaced with a fixed bridge for handling flexible sheets, and the vacuum head is rotated while in motion by an air cylinder carried on the support arms for the vacuum head.
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: February 8, 1977
    Assignee: FMC Corporation
    Inventor: Giorgio Perondi
  • Patent number: 3992000
    Abstract: In electrostatographic copying apparatus, a device for stripping copy sheets from an arcuate photoreceptor imaging surface comprising a stripping element having minor bearing surfaces only adjacent its leading and trailing ends and arranged to be pivotably connected to a support element at a first pivot point equidistant the bearing surfaces, and a support element pivotably mounted about a second pivot point and arranged to urge the stripping element towards the arcuate surface, the first pivot point lying at or closely beyond a tangent of the arcuate surface originating opposite the leading edge when in use, and the second pivot point lying at or closely beyond a line extending through the leading edge and the first pivot point.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: November 16, 1976
    Assignee: Xerox Corporation
    Inventor: Harvey G. Martin
  • Patent number: 3981085
    Abstract: An improved air stripping device for stripping copy sheets from the surface of an elastomeric fuser roll surface in which copies are fused under heat and pressure. The improved air stripping device utilizes the deformation in the elastomeric surface resulting from the pressure to strip the copy sheets without directly contacting the fuser roll surface. One or more apertures are formed in the tip portion of the stripping device which are connected to a source of air pressure. The tip portion can be either flat or curved and is positioned at an acute angle relative to tangential direction from which the copy sheet is stripped from the fuser roll surface which undergoes a rippled effect from the air pressure to facilitate the stripping of the copy sheets therefrom.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: September 21, 1976
    Assignee: Xerox Corporation
    Inventor: Eugene B. Franko
  • Patent number: 3965856
    Abstract: A device including an applicator wheel for applying molten adhesive to a substrate as the substrate is moved over the surface of the wheel. The device includes a reservoir within which the wheel is partially submerged in molten adhesive and a doctor blade for controlling the thickness of adhesive applied to the substrate. The reservoir is so configurated that so long as the wheel is rotating, there is a continuous flow of molten adhesive from the pool beneath the wheel up to the doctor blade, along the underside of the doctor blade and back to the pool via channels in the end plates of a reservoir. To prevent the substrate from adhering to the surface of the wheel, stripper fingers extend parallel to the path of movement of the substrate and ride within annular channels or grooves in the periphery of the wheel.
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: June 29, 1976
    Assignee: Nordson Corporation
    Inventors: Charles H. Scholl, Alan B. Reighard
  • Patent number: 3957423
    Abstract: Contact fuser for a xerographic reproducing apparatus characterized by the provision of means for stripping the copy paper from the heated fuser roll. The stripping means is characterized by the provision of a plurality of finger-like elements which are pivotally mounted such that the pivot point is disposed intermediate the fuser roll and an area contacted by the copy whereby the weight of the copy on the finger-like elements serves to minimize adverse forces of the elements on the fuser roll.
    Type: Grant
    Filed: January 8, 1974
    Date of Patent: May 18, 1976
    Assignee: Xerox Corporation
    Inventor: Karl J. Mueller
  • Patent number: 3955813
    Abstract: A xerographic copying apparatus having a hot roll fuser and a peeler bar which includes a fluid jet to assist in stripping the toned copy sheet from the hot roll. The peeler bar and jet geometry cooperate with the fusing nip to create aerodynamic forces which tend to peel the sheet's leading edge from the hot roll. This force producing means includes an air jet. The air jet produces pressure differentials to initially pick and guide the sheet's leading edge from the hot roll. The combination of these pressure differentials and the peeler bar's guide surface, positioned to one side of the sheet's path downstream of the hot roll, provides an unconfined and sole support guidance means for the sheet as it leaves the hot roll.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: May 11, 1976
    Assignee: International Business Machines Corporation
    Inventor: Earl G. Edwards
  • Patent number: 3938950
    Abstract: Stripping apparatus for stripping copy sheets bearing electrostatic developed images from a heated pressure fusing roll after fusing of the images to paper sheets. The stripping apparatus comprises a flexible blade member supported by a retaining device and positioned into contact with the heated fusing roll surface. The tip of the blade has a hollow ground edge of a radius slightly greater than the fuser roll. The blade is slideably positioned to enable lateral expansion axially relative to the retaining device. A modification of the stripping device consists of a comb design with blade and retaining members having inter-locking tines.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: February 17, 1976
    Assignee: Xerox Corporation
    Inventors: Ernest A. Weiler, Rabin Moser