Fabric Layer And Capillary Passages Patents (Class 384/298)
  • Patent number: 10267362
    Abstract: A sliding contact surface-forming material includes a reinforcing base impregnated with a resol-type phenolic resin having polytetrafluoroethylene resin dispersed therein. The reinforcing base being composed of a woven fabric formed by using, respectively as the warp and the weft, a ply yarn which is formed by paralleling at least two strands of a single twist yarn spun from fluorine-containing resin fiber and a single twist yarn spun from polyester fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun. Additionally, a multi-layered sliding contact component having the overall shape of a flat plate or a circular cylinder includes the above-described sliding contact surface-forming material so as to configure at least the sliding-contact surface thereof.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 23, 2019
    Assignee: Oiles Corporation
    Inventors: Hiroyuki Ogoe, Shinya Nishimura, Kentaro Okubo
  • Patent number: 10253807
    Abstract: A system for elastically compensating for wear, thermal expansion and misalignment comprises a ring located between a housing and a pin in the bore of the housing. The ring has a backing layer, an expanded grid structure having a plurality of openings, a low friction layer penetrated into the openings of the expanded grid structure, and adhesive for bonding the backing layer, expanded grid structure and low friction layer together to provide elastic deformation of the ring between the housing and pin.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 9, 2019
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS PAMPUS GMBH
    Inventors: Joerg Heldmann, Hans-Juergen Jaeger, Alexander Oehrlein
  • Patent number: 10094155
    Abstract: A method of forming a corrosion resistant bushing includes bonding a sliding layer to a first surface of a load bearing substrate to form a laminate sheet and cutting a blank from the laminate sheet. The laminate sheet includes an exposed surface corresponding to a second surface of the load bearing substrate. The blank includes cut edges having a load bearing substrate portion. The method further includes forming a semi-finished bushing from the blank.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 9, 2018
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS PAMPUS GMBH
    Inventors: Ralf Neumark, Hans-Juergen Jaeger, Ansgar M. Haeger
  • Patent number: 10082177
    Abstract: A sliding engine component may include a sliding surface including a plastic polymer-based layer disposed on a metallic substrate. The plastics polymer-based layer may include a plurality of plastic polymer-based layers. The plurality of plastic polymer-based layers may include a first coating of a first polymer-based layer deposited on the metallic substrate and cured at a first temperature, and a second coating of a second polymer-based layer deposited onto the first polymer-based layer and cured at a second temperature. The second temperature may be lower than the first temperature.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: September 25, 2018
    Assignees: Mahle Engine Systems UK Ltd, Mahle International GmbH
    Inventor: Nathan Fisher
  • Patent number: 9400013
    Abstract: A bearing liner comprising a fabric impregnated with a binder, the fabric comprising: (a) a bearing element contact surface comprising lubricating fibers and (b) structural fibers supporting the bearing element contact surface, wherein at least some of the structural fibers include a structural component and a lubricating component.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: July 26, 2016
    Assignees: AKTIEBOLAGET SKF, SKF AEROSPACE FRANCE S.A.S.
    Inventors: Andrew Bell, Michael Colton, Camille Dayot, Noemie Peron
  • Patent number: 8152380
    Abstract: A sleeve bearing assembly and method of construction therefor includes a woven inner portion bonded to an injection molded elastic outer portion. The inner portion includes a first yarn of lubricious yarn material and a second yarn of material that is different than the first yarn. The first yarn substantially provides an inner bearing surface and the second yarn substantially provides an outer surface that is bonded to the outer portion. The first and second yarns are woven together so that the first yarn is woven in one of a weft direction corresponding to a circumferential direction of the journal bearing surface or a warp direction corresponding to an axial direction of the journal bearing surface to substantially provide the bearing surface and the second yarn is woven in a direction different than the first yarn to substantially provide the outer surface bonded to the outer portion.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 10, 2012
    Assignee: Federal-Mogul World Wide, Inc.
    Inventors: Gerald Thomas Lien, Cassie Marie Malloy, Ramesh R. Avula
  • Patent number: 8021051
    Abstract: A sleeve bearing assembly and method of construction therefore has an inner portion constructed from a plurality of yarns to provide a journal bearing surface for receipt of a journal for relative movement therein and an elastic outer portion injection molded at least partially about the inner portion. The plurality of yarns are woven together with at least some of the yarns being woven in a warp direction corresponding to a length of the journal bearing surface and in a weft direction corresponding to a circumferential direction of the journal bearing surface to form a backing of the inner portion. At least one of the plurality of yarns is provided as a self-lubricating yarn woven with the backing in a weft direction to substantially form the bearing surface radially inwardly of the backing.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: September 20, 2011
    Assignee: Federal-Mogul World Wide, Inc.
    Inventor: Benjamin B. James
  • Patent number: 7473035
    Abstract: A bearing assembly includes a spherical journal and a hemispherical bearing that is made of a fiber reinforced composite and has a bearing surface for establishing a spherical pair with the spherical journal. The fiber reinforced composite can be constructed by arranging a uni-directional prepreg, woven fiber prepregs and staple-fiber prepregs in a variety of configurations, and thermoplastic resin particles or self-lubrication particles are uniformly provided on the bearing surface. It is possible to alleviate stress concentration generated on the bearing surface by forming a plurality of air channels capable of imparting directivity on an outer surface of the hemispherical bearing.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: January 6, 2009
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Dai Gil Lee, Dong Chang Park, Seong Min Lee, Byung Chul Kim, Hak Sung Kim, Sung Su Kim, Jong Woon Kim
  • Patent number: 7226213
    Abstract: A multi-layer plane bearing has a bearing layer and a gliding layer connected to it. The gliding layer includes at least one thread layer treated with an epoxy resin. The thread layer is made up of a multitude of threads of at least one thread type arranged in a given pattern. Each thread includes at least one primary thread component made of spun PTFE/polyethersulfone mixed fiber yarn and at least one secondary component made of spun polyethersulfone fiber. There thread components are twisted in shaping the threads.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: June 5, 2007
    Assignee: Federal-Mogul Deva GmbH
    Inventors: Udo Roos, Erik Kraft
  • Publication number: 20040264821
    Abstract: A bearing shell with a spherical bearing surface for a ball and socket joint preferably for use in chassis suspensions or steering mechanisms of motor vehicles, which has essentially a joint housing and a bearing journal, which comprises a spherical surface and a pivot part and which is mounted with the spherical surface rotatably and deflectably in the spherical bearing surface of the bearing shell fixed in the joint housing, is presented, in which a filament fabric is embedded according to the present invention in the thermoplastic of the bearing shell (5, 11, 12, 13, 14, 15) at least in a partial area.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 30, 2004
    Applicant: ZF Lemforder Metallwaren AG
    Inventor: Frank Budde
  • Patent number: 6729763
    Abstract: A hybrid bearing system that has a self-lubricating portion and a grease lubricated portion each being disposed on the same surface, the system is adapted to accommodate at least two distinct wearing forces generated by different types of motions. The bearing system includes: a first member; a second member, the second member being configured to be rotatably received within the first member; a self lubricating machineable liner system disposed between the first member and the second member; a receiving area disposed on the self lubricating liner system and a portion of either the first or the second member; and a lubrication opening in fluid communication with the receiving area, the lubrication opening providing structure for disbursing a lubrication grease within the receiving area.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: May 4, 2004
    Assignee: Kamatics Corporation
    Inventors: Jeffrey M. Post, Jan Krakowski, Mathew Mormino, Jr., Bruce B. Yurczak
  • Patent number: 6675496
    Abstract: A bearing for supporting the drum of a clothes dryer which includes an interior structural layer of high coherency felted fibrous material and an exterior surface covering for contact with the dryer drum formed of fibrous material including a wool constituent. The felted interior provides support and noise damping character while the exterior surface covering provides friction reduction and enhanced flame retardancy.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: January 13, 2004
    Assignee: The Felters Company
    Inventors: Joseph Moon, John J. Burns, Jerry W. Owens, Jr.
  • Publication number: 20030035602
    Abstract: A low-friction bearing is a hollow cylinder including an inner bearing surface. The bearing includes an inner anti-friction layer, a second load bearing composite laminate and an outer backing layer. The inner layer characteristically both has a low coefficient of friction and is wear-resistant. The inner bearing surface is defined by the inner layer, the inner layer being a woven material composed of commingled low-friction fibers and wear-resistant fibers, the woven material being impregnated with a resin. The second layer is composed of a continuous filament composite which results in significantly improved load capacities and impact fatigue. An outer backing layer is made substantially of a thermoplastic material, the outer backing layer being molded upon the inner layer.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 20, 2003
    Inventors: Benjamin A. Shobert, Ray E. Wolff
  • Patent number: 6478468
    Abstract: A plain bearing comprises a metal backing, a layer of a porous matrix of sintered metal on the backing and a filled PTFE infiltrated into the interstices of the sintered layer and standing proud of the sintered layer, wherein the PTFE is filled with 1-20% by volume fibrillated aramid fibres and 10-30% by volume glass. The glass is preferably E-glass present as milled filaments of length 0.05-0.30 mm and diameter 0.010-0.020 mm and coated with a silene sizing agent. The fibrillated aramid fibres provide reinforcement and improved load bearing capacity and the glass provides an abrasive filler which abrades asperities on a body and creates a smooth polished surface against which to bear, thereby improving its life. The PTFE preferably also includes ferric oxide and carbon black to about 1.5% and 1.2% by volume respectively which both pigment the polymer and act as fine abrasive and lubricant respectively. The carbon black content may be increased to about 10% to provide electrical conductivity.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: November 12, 2002
    Assignee: Glacier Garlock Bearings Inc.
    Inventors: Kenneth Macleod McMeekin, Janette Johnston
  • Patent number: 6464396
    Abstract: The invention relates to a rolled-up plain bearing bush made from a metal/plastic composite plain bearing material whose wall has a thickness of at least 0.75 mm and which can be pressed into an opening of said bearing to form a medium-force fit. The inventive bearing bush also comprises a metal supporting layer and a sliding layer. In order to reduce weight and corrosion, the plain bearing bush is characterized in that the metal supporting layer is made of an aluminum alloy and the sliding layer consists of an expanded aluminum metal alloy section and a mixture of plastic sliding material that is applied to the expanded metal section and in the openings thereof in addition to optionally containing fillers that improve caloric conductibility and tribiological properties and the supporting layer is glued using an additional PFA-layer arranged therebetween.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: October 15, 2002
    Assignee: KS Gleitlager GmbH
    Inventors: Werner Schubert, Karl Becker
  • Patent number: 6273685
    Abstract: A radial piston pump for generating high-fuel pressure in fuel injection systems of internal combustion engines, in particular in a common rail injection system, having a drive shaft which is supported in a pump housing and has an eccentrically embodied shaft portion on which preferably a plurality of pistons, disposed radially in a respective element bore are supported relative to the drive shaft. The pistons move back and forth in the respective element bore by rotation of the drive shaft. An axial bearing disk with a plurality of lugs which are disposed on the circumference and engage corresponding grooves in the pump housing is mounted in the pump housing with the aid of a retaining device.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 14, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Uwe Kuhn
  • Patent number: 5762424
    Abstract: Disclosed herein is a bearing assembly comprising an outer stationary assembly including a housing including an axial bore with an inwardly facing spherical surface, and an outer bearing member including an outwardly facing spherical surface received by the inwardly facing spherical surface of the housing, and a bore including an inwardly facing cylindrical bearing surface, and an inner rotating assembly including a rotating shaft, and a bearing sleeve fixed to the shaft for common rotation and including an axial bore receiving the shaft, and an outwardly facing composite fabric bearing having an outwardly facing cylindrical self-lubricating bearing surface received in the inwardly facing bearing surface of the outer bearing member.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: June 9, 1998
    Assignee: Rexnord Corporation
    Inventors: Bernard Harris, Dennis E. Bozych, Jeffrey R. Scholbe
  • Patent number: 5685648
    Abstract: The invention provides a bearing including an inner bearing surface that is formed by a layer of self-lubricating material and that contains axially extending and circumferentially spaced apart lubrication grooves. The inner bearing surface and the grooves therein are formed by conforming the self-lubricating material to the outer surface of a mandrel that has elongated members supported thereon so that the elongated members form the lubrication grooves. An overlayment is then applied on the layer of self-lubricating material, the overlayment including a plurality of filaments wound around the layer of self-lubricating material, and a hardenable liquid to bond the layer of self-lubricating material to the overlayment.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 11, 1997
    Assignee: Rexnord Corporation
    Inventors: Bernard Harris, Dennis E. Bozych
  • Patent number: 5635124
    Abstract: The present invention is an expanded polytetrafluoroethylene (PTFE) fiber with improved handling properties. Unlike previous expanded PTFE fibers, the fiber of the present invention employs a fiber of increased thickness so that the fiber is maintained in an unfolded orientation. The improved processing steps of the present invention create a fiber that has a number of improved properties, including more uniform dimensions along its length, improved compressibility and handling, and when woven into a fabric, the fabric is more easily processed, is of higher quality, and is more uniform.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: June 3, 1997
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Brad F. Abrams, Raymond B. Minor, Gordon L. McGregor, John W. Dolan
  • Patent number: 5480231
    Abstract: A spherical sliding bearing comprising a hollow inner rotating metallic shaft member having a spherical convex surface on its periphery, an outer load-carrying member having a spherical concave surface generally in conformity with the convex surface, the inner rotating shaft member being supported by the outer load-carrying member so as to freely rotate and oscillate under the sliding-contact relationship between the convex and concave surfaces, and a pressure-bearing seat being interposed between the convex and concave surfaces, which contains a fluorocarbon resin, a modifier dispersed in the fluorocarbon resin and a metallic member which is entirely embedded in the fluorocarbon resin and assures the strength of the pressure-bearing seat.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: January 2, 1996
    Assignee: Daido Metal Company Ltd.
    Inventors: Takayoshi Sasaki, Kotaro Kashiyama
  • Patent number: 5470414
    Abstract: A method of making a filament wound flat stock member and the filament wound flat stock member made by that method. A low fraction bearing surface is formed on a support having a flat surface by placing a self-lubricating material on the flat surface. A matrix is formed upon the self-lubricating material by winding thereon a resin-impregnated filamentous material. The winding is continued until a desired outer matrix dimension is obtained and the resin is cured to bond the materials together into a hardened stock member. The hardened stock member is removed from the flat of the support to provide a filament wound flat stock member having an exposed bearing surface of the self-lubricating material.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: November 28, 1995
    Assignee: Rexnord Corporation
    Inventors: Bernard Harris, Dennis E. Bozych
  • Patent number: 5431500
    Abstract: A bearing comprising a substratum having a configured external surface to which a self-lubricating material is integrally bonded to provide a self-lubricating bearing surface produced by the method of: applying a layer of self-lubricating resin penetrable bearing material onto the configured external surface; providing a hardenable liquid resin to coat and penetrate the bearing material; applying an overlayment of filaments onto the layer of bearing material to exert a bonding pressure on the layer of bearing material sufficient to cause the layer of bearing material to conform and bond to the configured external surface; hardening the resin; and removing at least part of the overlayment of filaments after the resin has hardened to expose at least selected portions of the layer of self-lubricating bearing material.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: July 11, 1995
    Assignee: Rexnord Corporation
    Inventors: Bernard Harris, Dennis E. Bozych
  • Patent number: 5417499
    Abstract: A fabric lined bushing is formed by placing a braided liner around a mandrel coating the liner with an adhesive and injection molding an elastomeric bushing material around the adhesive coated braided liner. The braided liner is formed from polyester fibers and polytetrafluoroethylene fibers. Molding the elastomeric material under pressure around the braided liner while positioned on a mandrel tends to stretch the braided liner binding it more tightly to the mandrel and preventing the elastomeric material from penetrating the liner. The interior surface of the bushing is primarily the braided liner material which reduces noise and decreases wear.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: May 23, 1995
    Assignee: Eagle-Picher Industries, Inc.
    Inventors: William Jacques, Frederick Jeffrey
  • Patent number: 5288354
    Abstract: A method of integrally bonding self-lubricating material to an external surface of a substratum to form a self-lubricating surface thereon comprising the steps of: A. forming the substratum to provide an external surface thereon of desired configuration; B. applying a layer of self-lubricating material onto the surface; C. applying a plurality of filaments on the layer of self-lubricating material to form an overlayment thereon to exert a bonding pressure sufficient to cause the layer of self-lubricating material to conform and bond to the configured external surface; D. applying a hardenable liquid resin prior to, simultaneously with, or subsequent to the application of the self-lubricating material and filaments to coat the material and filaments and fill any interstices that exist; E. hardening the resin; and F. removing all or part of the overlayment after the resin has hardened to expose the layer of self-lubricating material or portions thereof on the external surface.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: February 22, 1994
    Assignee: Rexnord Corporation
    Inventors: Bernard Harris, Dennis E. Bozych
  • Patent number: 5137374
    Abstract: A bearing assembly comprises coengaging inner race and outer race members movable relative to one another. The inner race has an outer bearing surface to which is fixedly secured a self-lubricating bearing material which engages and is movable relative to the bearing surface of the outer race member. The outer race is case hardened titanium.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: August 11, 1992
    Assignee: Kamatics Corporation
    Inventor: Stanley S. Orkin
  • Patent number: 5087132
    Abstract: A method for manufacturing a resin impregnated cloth bearing surface wherein the resin impregnated cloth is deaerated to reduce air bubbles in the finished bearing.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: February 11, 1992
    Assignee: Tsubakimoto Chain Company
    Inventors: Kouji Tanaka, Masaaki Ikeda, Yasumasa Tsubakimoto, Takashi Koizumi, Takerou Nakagawa, Makato Kanehira
  • Patent number: 5056938
    Abstract: A track roller bearing having a floating sleeve between the inner race and outer race. The floating sleeve has a self-lubricating bearing material on its outer surface. The coefficient of friction of the self-lubricating bearing material increases as the material is worn. When the self-lubricating bearing material coefficient of friction exceeds the coefficient of friction of the floating sleeve inner surface, the floating sleeve will rotate with the outer race until a new unworn surface of self-lubricating bearing material is presented to the load area of the outer race. This precessing of the floating sleeve will continue until the entire surface area of the self-lubricating bearing material is worn, thus extending the track roller bearing life.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: October 15, 1991
    Assignee: The Torrington Company
    Inventors: S. Robert Ahlman, William E. Dunn, Harry Magazian
  • Patent number: 4976550
    Abstract: A plastic bearing is provided, as well as a method of fabricating these bearings, in which a number of strands of expanded polytetrafluoroethylene fibers are woven about a cylindrical mandrel to form a fabric about this mold surface. The fabric is then impregnated with a hardenable plastic. The plastic is hardened and the bearing is removed from the mold surface. The resulting plastic bearing has greatly improved wear resistance which permits new applications.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: December 11, 1990
    Assignee: Plas/Steel Products, Inc.
    Inventor: James P. Shobert
  • Patent number: 4916749
    Abstract: A bushing for rotatably supporting a bar-shaped suspension link comprises an elastomeric body having a central axis and including an axial bore adapted to receive the suspension link therethrough. The bore includes a circumferential surface having projected surface portions and recessed surface portions, the projected surface portions projecting radially inwardly to provide radial clearance between the suspension link and the recessed surface portions. Preferably, the projected surface portions include a plurality of first and second ridges projecting radially inwardly. The first ridges are substantially parallel to the central axis of the elastomeric body and intersect the second ridges at substantially right angles to define therebetween the recessed surface portions. The preferred embodiment of the bushing of this invention further comprises a double-knit fabric liner covering the circumferential surface of the bore of the body.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: April 10, 1990
    Assignee: The Pullman Company
    Inventors: Henry F. Urban, Jay W. Thornhill
  • Patent number: 4846590
    Abstract: A spherical bearing comprises an outer ring and an inner ring located inside the outer ring to be slidable, the outer ring is prepared by casting molten metal around a resin-made sheet to be coated on the inner ring. A liner disposed between the inner and outer ring comprises a liner body and a metallic mesh member embedded in the liner body, and the molten metal is filled in meshes in the mesh member so as to partially bite the inner peripheral portion of the outer ring to achieve the firm engagement of the liner with the outer ring.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: July 11, 1989
    Inventor: Hiroshi Teramachi
  • Patent number: 4820140
    Abstract: The invention comprises a rotary pump with sliding vanes with a self-lubricating solid coating covering the exterior end facing surfaces of the rotor and end facing surfaces of air transfer end plates. Additionally disclosed herein is a rotary pump with sliding vanes with a pair of bushings centrally located in the rotor with the internal bearing facing surfaces of the bushings covered with a self-lubricating solid coating.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: April 11, 1989
    Assignee: Sigma-Tek, Inc.
    Inventor: Jerry B. Bishop
  • Patent number: 4741629
    Abstract: A gas bearing (1) comprising two bearing parts (2, 3) of granite type material and similar natural stone materials and means for injecting a gas between the bearing parts (2, 3) for forming a gap (7, 11) therebetween. The pores (10) in the surfaces of the granite material of these bearing parts are sealed by a non-brittle, transparent, mechanically, machinable pore sealing material (9, 12) for forming gas bearing parts having a non-porous surface. Examples of pore sealing materials (9, 12) for sealing the pores of the bearing parts and bearing part material are polyurethanes, acrylic polymers, epoxy resins, silicone resins, polyvinylidenefluoride resins, aramide resins etc. Preferably the pore sealing material consists of a polymer being curable at low temperatures, particularly below 30.degree.C.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: May 3, 1988
    Assignee: Pelt & Hooykaas B.V.
    Inventor: Carel W. J. Hooykaas
  • Patent number: 4685184
    Abstract: A self-lubricating track-roller bearing and the method of manufacturing the same that includes such a bearing with an inner race ring having a liner of self-lubricating material bonded to the outer surface of the inner race ring which is manufactured by the use of such a liner having self-lubricating material on one side and adhesive on the other side, with the latter side applied to such inner ring outer surface, positioning such inner ring with the liner thereon and a transparent heat shrinkable tubing assembly fixture together in a concentric relation so that upon the application of heat to said fixture it shrinks into a circumferential contact with the said liner to exert a force as the shrinking occurs to press said liner and said adhesive thereon against said outer surface to bond the latter thereto and thereby compress the thickness of said self-lubricating material, with said heat-shrunken tubing fixture maintaining said liner in position during additional heating to cure said adhesive, then removing
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: August 11, 1987
    Assignee: McGill Manufacturing Company, Inc.
    Inventor: Gary A. Satkamp
  • Patent number: 4509870
    Abstract: A plastic sliding bearing comprises an inner cylindrical member of fluoride such as fluoroplastics and an outer cylindrical member of fiber reinforced thermosetting resin arranged coaxially and integrally with the inner cylindrical member. The inner and outer cylindrical members are firmly and rigidly united with each other to prevent separation from each other during use of the sliding bearing. The firm and reliable unification of the inner and outer cylindrical members is achieved by providing on the external surface of the inner cylindrical member projections or biting means firmly engageable with the internal surface of the outer cylindrical member. The plastic sliding bearing of the present invention exhibits superior durability to similar plastic slide bearings of the prior art.
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: April 9, 1985
    Assignee: Kabushiki Kaisha Miura Kumihimo Kogyo
    Inventor: Kiyozi Taki
  • Patent number: 4386455
    Abstract: A piano action mechanism wherein a shaft pin for rotatably supporting a rotatable member on a flange is carried in bearings formed of bushing cloth glued to the surface of bushing holes in the rotatable member. With a pin inserted through the cylinders of bushing cloth, the assembly is dipped in water, dried, dipped in a solution of resin bonded fluorocarbon solids, again dried and the pin removed, to provide a durable and stable bearing having a low coefficient of friction and which is essentially noise-free and insensitive to changes in temperature and humidity.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: June 7, 1983
    Assignee: CBS
    Inventor: Walter G. Drasche