With Fluorine Compound Patents (Class 508/104)
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Patent number: 12030117Abstract: A sliding member (10) includes a base material (12), a porous sintered layer (14) provided on the base material (12), and a resin layer (16) impregnated into the porous sintered layer (14) and provided on the porous sintered layer (14). In the porous sintered layer (14), a porosity decreases from a second surface (S2) opposite to a first surface (S1) closer to the base material, toward the first surface (S1), the first surface and the second surface each being one of end surfaces in the thickness direction, and a decrease rate of the porosity in the thickness direction (Z) in a first region (E1) occupying 50% or more of the thickness of the porous sintered layer (14) from the second surface (S2) toward the first surface (S1) is larger than a decrease rate of the porosity in the thickness direction (Z) in a second region (E2) other than the first region (E1) in the porous sintered layer (14).Type: GrantFiled: April 7, 2021Date of Patent: July 9, 2024Assignee: TAIHO KOGYO CO., LTD.Inventors: Naoki Horibe, Noriyuki Wada, Hiroshi Ito
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Patent number: 10151349Abstract: A method is provided that forms a solid film on a bearing component of a rolling bearing. A solution containing a fluorine compound and a lubricant having no functional group is allowed to adhere to the bearing component as a liquid film, the fluorine compound containing 3-(trimethoxysilyl) propyl methacrylate, hexafluoropropene, and methyl methacrylate as components. The solid film is formed on the at least one of the bearing components by hardening the adhering liquid film.Type: GrantFiled: June 9, 2017Date of Patent: December 11, 2018Assignee: JTEKT CORPORATIONInventor: Kazuyoshi Yamakawa
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Patent number: 9970483Abstract: A sliding material for gliding elements includes a thermoplastic matrix material and a PTFE additive. The PTFE additive includes at least two different types of PTFE having different molecular weights.Type: GrantFiled: December 22, 2014Date of Patent: May 15, 2018Assignee: Federal-Mogul Wiesbaden GmbHInventors: Achim Adam, Norbert Fleischhacker
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Patent number: 9884340Abstract: A deposition apparatus and method for depositing an organic material includes an effusion cell, a guide rail, and a cooling channel. The effusion cell extends in a first direction. The guide rail is below the effusion cell and extends in a second direction. The cooling channel is below an upper surface of the guide rail and extends in the second direction.Type: GrantFiled: December 9, 2015Date of Patent: February 6, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jae Hoon Hwang, Kwan Hee Lee
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Patent number: 9243204Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.Type: GrantFiled: October 10, 2014Date of Patent: January 26, 2016Assignee: University of Florida Research Foundation, Inc.Inventors: Wallace Gregory Sawyer, Ben Peter Boesi, Nicole Lee McCook, David L. Burris
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Publication number: 20150051122Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.Type: ApplicationFiled: October 10, 2014Publication date: February 19, 2015Inventors: Wallace Gregory Sawyer, Ben Peter Boesi, Nicole Lee McCook, David L. Burris
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Patent number: 8883697Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.Type: GrantFiled: January 31, 2011Date of Patent: November 11, 2014Assignee: University of Florida Research FoundationInventors: Wallace Gregory Sawyer, Ben Peter Boesl, Nicole Lee McCook, David L. Burris
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Patent number: 8728993Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.Type: GrantFiled: January 11, 2013Date of Patent: May 20, 2014Assignee: University of Florida Research Foundation, Inc.Inventors: W. Gregory Sawyer, David L. Burris
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Publication number: 20140100144Abstract: Slide bearings and methods of producing slide bearings are disclosed. The slide bearing has a metal support and a sliding layer. No other layer is in contact with the sliding layer. The sliding layer is applied directly to the metal support. The sliding layer comprises a mixture of at least two polymers P1 and P2, wherein P1 is a fluoropolymer. P2 is a non-fluorinated thermoplastic polymer.Type: ApplicationFiled: September 27, 2013Publication date: April 10, 2014Inventors: Julia Ziegler, Olaf Schmitjes, Marc A. Aerts
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Patent number: 8383561Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.Type: GrantFiled: August 24, 2010Date of Patent: February 26, 2013Assignee: University of Florida Research Foundation, inc.Inventors: W. Gregory Sawyer, David L. Burris
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Patent number: 8137747Abstract: Components, turbochargers, and methods of forming components are provided. In an embodiment, by way of example only, a method of forming a component is provided. The method includes applying a plurality of coated particles to a substrate, wherein each coated particle comprises a solid film lubricant particle and a layer surrounding an entire surface of the solid film lubricant particle, each solid film lubricant particle comprises at least one compound, and the layer comprises a coating material having a greater resistance to oxidation than the compound when subjected to a predetermined processing temperature and heating the substrate to the predetermined processing temperature to form a portion of a coating over the substrate.Type: GrantFiled: July 30, 2008Date of Patent: March 20, 2012Assignee: Honeywell International Inc.Inventors: Reza Oboodi, James Piascik, Bjoern Schenk
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Patent number: 7998572Abstract: A self-lubricating coating is disclosed. The coating includes a base material. The coating also includes a nanoparticle of a first material and a shell substantially surrounding the nanoparticle and including a second material different than the first material.Type: GrantFiled: August 12, 2008Date of Patent: August 16, 2011Assignee: Caterpillar Inc.Inventors: Andrew Neil McGilvray, Atanu Adhvaryu, Lucy Victoria Davies
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Patent number: 7910527Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.Type: GrantFiled: March 21, 2006Date of Patent: March 22, 2011Assignee: University of Florida Research FoundationInventors: Wallace Gregory Sawyer, Ben Peter Boesl, Nicole Lee McCook, David L. Burris
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Publication number: 20100275571Abstract: The oil-free chain is obtained by connecting a pair of inner link plates which are connected by oil-impregnated bushings and a pair of outer link plates, which are connected by pins inserted into adjacent oil-impregnated bushings of adjacent inner link plates alternately. The oil-impregnated bushing is obtained by impregnating a bushing made of a metal sintered body with perfluoropolyether having a kinematic viscosity at 40° C. equal to or higher than 350 mm2/s. The bushing is impregnated with perfluoropolyether having a kinematic viscosity corresponding to the operating temperature of the oil-free chain.Type: ApplicationFiled: October 23, 2008Publication date: November 4, 2010Applicant: Tsubakimoto Chain Co.Inventors: Takeshi Kondo, Toshihiko Takashima, Ikutaro Nakagawa, Takahisa Andoh, Masahide Komeda
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Patent number: 7790658Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.Type: GrantFiled: May 30, 2006Date of Patent: September 7, 2010Assignee: University of Florida Research Foundaction, Inc.Inventors: W. Gregory Sawyer, David L. Burris
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Patent number: 7700004Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.Type: GrantFiled: November 1, 2006Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Publication number: 20100086426Abstract: A sliding member has a porous sintered base and a resin composition. The porous sintered base is constructed of a porous sintered compact. The resin composition is coated onto the surface of the porous sintered base. The resin composition has a maximum resin layer thickness equal to a pore depth plus at least 10 ?m or more to the pore depth t2. The pore depth is a maximum depth of the pores exposed on the surface of the porous sintered base before the resin composition is coated onto the surface of the porous sintered base.Type: ApplicationFiled: September 27, 2007Publication date: April 8, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takeyoshi Ohkawa, Hisashi Inomoto
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Publication number: 20090118147Abstract: A water-based lubricant composition, comprising: water, molybdenum disulfide, polytetrafluoroethylene, and a polymeric binder, wherein the binder is an acrylic resin or a polyurethane resin.Type: ApplicationFiled: January 10, 2005Publication date: May 7, 2009Inventors: Aureliano Perez, JR., Kenneth A. Vaught, George P. Hansen
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Patent number: 7030065Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).Type: GrantFiled: July 22, 2004Date of Patent: April 18, 2006Assignee: C&C Oil CompanyInventor: Alan C. Lockett, Sr.
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Patent number: 6915574Abstract: A multi-layer seal and washer that provide a seal between a vane stem and a casing in a turbine engine are disclosed. The seal and washer are fabricated from materials such as Teflon fibers and glass fibers and are impregnated with a polyimide resin. The seal and washer are durable and have a low coefficient of friction.Type: GrantFiled: March 29, 2001Date of Patent: July 12, 2005Assignee: General Electric CompanyInventors: Thomas C. Mesing, Wayne R. Bowen, David B. Hester
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Publication number: 20040180796Abstract: An object of the present invention is to provide a sliding member which can slide for a longer period of time even in a dry state. In the present invention, the sliding member is provided with a sliding layer 3 containing 1 to 20 vol % of bismuth powder and/or bismuth alloy powder, 20 to 60 vol % of metal powder, and 1 to 20 vol % of a solid lubricant, the sum thereof being not more than 70 vol %, and the balance being a thermosetting resin. Therefore, a large quantity of metal powder and bismuth powder and/or bismuth alloy powder are mixed with the thermosetting resin in the sliding layer 3, so that the thermal conductivity in the sliding layer 3 is improved, and hence heat does not accumulate in a sliding layer portion, by which seizure can be prevented.Type: ApplicationFiled: March 10, 2004Publication date: September 16, 2004Applicant: Daido Metal Company Ltd.Inventors: Hideki Iwata, Takeshi Shindo, Kotaro Kashiyama
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Patent number: 6767870Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).Type: GrantFiled: July 18, 2002Date of Patent: July 27, 2004Assignee: C&C Oil CompanyInventor: Alan C. Lockett, Sr.
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Publication number: 20040058828Abstract: In prior art, the wear resistance and frictional properties of a sliding member are improved by adding bismuth, an alkaline earth metal salt or the like, but not lead, to a polytetrafluoroethylene used as a base resin, in view of the undesirable influences of lead on the environment. However, a further improved wear resistance at a high PV value has been desirable. In the present invention, a sliding member having excellent wear resistance and frictional properties even when used at a high PV value can be obtained by using a thermosetting resin as a base resin in a proportion of 50 to 80 vol % and adding thereto a PTFE with a molecular weight of 3,000,000 or more in a proportion of 10 to 40 vol % and bismuth and/or a bismuth alloy in a proportion of 1 to 20 vol %.Type: ApplicationFiled: August 22, 2003Publication date: March 25, 2004Applicant: Daido Metal Company Ltd.Inventors: Hideki Iwata, Takahiro Niwa, Takeshi Shindo, Kotaro Kashiyama
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Publication number: 20040014610Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).Type: ApplicationFiled: July 18, 2002Publication date: January 22, 2004Applicant: C&C Oil Company, Inc.Inventor: Alan C. Lockett
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Patent number: 6498127Abstract: Disclosed is a composite sliding material consisting of a back metal, a porous alloy layer which is formed on the surface of the back metal by sintering a copper alloy powder, and a resin layer which is formed so as to impregnate into and cover the porous alloy layer. The alloy layer consists of sintered copper alloy particles and has a thickness of superimposed plural particles. The copper alloy powder has an average particle size of 25 to 100 &mgr;m so that the composite sliding material has smallersliding-contact resistance.Type: GrantFiled: October 17, 2000Date of Patent: December 24, 2002Assignee: Daido Metal Company Ltd.Inventors: Takahiro Niwa, Nobutaka Hiramatsu, Takayuki Shibayama
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Patent number: 6465089Abstract: In order to obtain a sliding material which does not include lead particles and is harmless to the environment, there is provided a sliding material which includes, by volume, 3 to 40% bismuth particles but no lead particles, while having a low coefficient of friction and excellent wear resistance.Type: GrantFiled: December 14, 2000Date of Patent: October 15, 2002Assignee: Daido Metal Company Ltd.Inventors: Takahiro Niwa, Hideki Iwata, Nobutaka Hiramatsu, Takayuki Shibayama
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Patent number: 6376061Abstract: A composite multilayer material is described which exhibits relatively high wear and delamination resistance without impairment of the coefficient of friction in the presence of oil. The composite multilayer material contains at least one powder-form polyaramid in its overlay, the content of PTFE or of PTFE together with the other fluorothermoplastics which form the matrix material amounting to 55-90 vol. %, the content of further fillers amounting to 9.5-44.5 vol. % and the content of polyaramid amounting to 0.5-10 vol. %.Type: GrantFiled: February 26, 1999Date of Patent: April 23, 2002Assignee: Federal-Mogul Wiesbaden GmbHInventor: Achim Adam
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Patent number: 6342306Abstract: A bearing material includes a backing metal and a porous sintered metal layer sintered onto a surface of the backing metal, particles of an inorganic substance being contained at grain boundaries of the porous sintered metal layer. The porous sintered metal layer contains tin, nickel, phosphorus, and copper, and the particles of the inorganic substance are those of at least one of graphite, boron nitride, graphite fluoride, calcium fluoride, aluminum oxide, silicon oxide, and silicon carbide.Type: GrantFiled: November 3, 1999Date of Patent: January 29, 2002Assignee: Oiles CorporationInventors: Hideo Ozawa, Hiroshi Tsuji, Hirotsugu Tomita
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Patent number: 6162767Abstract: Iron oxide functions as a wear- and cavitation-inhibiting additive in the plastic sliding layer(s) of composite bearings for oil-lubricated applications. The sliding layers predominantly consist of thermoplastic fluoropolymers. The addition of iron oxide to PTFE-based materials reduces the destruction of the sliding surface owing to the appearance of cavitation if the materials are used in the presence of oil.Type: GrantFiled: December 9, 1997Date of Patent: December 19, 2000Assignee: Glyco-Metall-Werke Glyco B.V. & Co. KGInventor: Achim Adam
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Patent number: 6093482Abstract: A carbon--carbon composite for friction products comprises an outer friction part and a load bearing structure part supporting the friction part. The friction part contains a mixture of carbon fibers, pitch powder and graphite powder, whereas the structure part is comprised of a pack of alternating layers of the mixture and layers of one member selected from the group consisting of carbon fabrics, carbon-based prepregs and carbon-based, segmented prepregs.Type: GrantFiled: December 16, 1998Date of Patent: July 25, 2000Assignee: Daewoo Heavy Industries Ltd.Inventors: Hyun Cheol Park, Hong Bum Lee, Ik Hyun Oh, Hyun Kyu Shin, Kwang Soo Kim, John Hyun Park
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Patent number: 6015775Abstract: A self-lubricating sintered sliding member and its producing method, the member having excellent seizing resistance and wear resistance even in offset load and high load applications.The self-lubricating sintered sliding member is composed of an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material. The sintered contact layer has, on a surface thereof, protrusions formed from solid lubricant particles including graphite. A solid lubricant layer is laid over the surface of the sintered contact layer where the protrusions are formed.Type: GrantFiled: February 4, 1998Date of Patent: January 18, 2000Assignee: Komatsu Ltd.Inventors: Takemori Takayama, Yoshikiyo Tanaka
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Patent number: 5939363Abstract: A solid film of a fluorine-containing polyurethane polymer is formed on at least one of the constituent elements (inner and outer rings, rolling member and retainer) of a rolling-contact bearing. The molecules of the solid film of the fluorine-containing polyurethane polymer have urethane bonds, and form a three-dimensional reticular structure. Therefore, the film is unlikely to separate, peel off or wear. The occurrence of the dust can be restricted, and lubrication property can be improved.Type: GrantFiled: July 18, 1997Date of Patent: August 17, 1999Assignee: Koyo Seiko Co., Ltd.Inventors: Hiroshi Toyota, Kazunori Hayashida, Hiroaki Takebayashi
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Patent number: 5866518Abstract: A self lubricating, friction and wear reducing composite material useful over a wide temperature range of from cryogenic temperature up to about 900.degree. C. contains 60-80 wt. % of particulate Cr.sub.2 O.sub.3, dispersed in a metal binder of a metal alloy containing Cr and at least 50 wt. % of Ni, Cr or a mixture of Ni and Cr. It also contains 5-20 wt. % of a fluoride of at least one Group I, Group II, or rare earth metal and, optionally, 5-20 wt. % of a low temperature lubricant metal. Such as Ag, Au, Pt, Pd, Rh and Cu. This composite exhibits less oxidation instability and less abrasiveness than composites containing chromium carbide, is readily applied using plasma spray and can be ground and polished with a silicon carbide abrasive.Type: GrantFiled: January 16, 1997Date of Patent: February 2, 1999Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Christopher Dellacorte, Brian J. Edmonds
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Patent number: 5780396Abstract: A sliding member excellent in cavitation resistance and friction properties which has a sliding surface composed of a resin composition comprising a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and a polytetrafluoroethylene having a molecular weight of 5,000,000 to 15,000,000 and optionally a solid lubricant, wherein the proportion of the tetrafluoro-ethylene-perfluoroalkyl vinyl ether copolymer resin is 1 to 50% by volume based on the volume of the resin composition and the proportion of the solid lubricant is 0.5 to 10% by volume based on the volume of the resin composition. The addition of the solid lubricant results in an enhancement of friction properties and the use of an exfoliated graphite as the solid lubricant brings about a further enhancement of friction properties.Type: GrantFiled: January 23, 1996Date of Patent: July 14, 1998Assignee: Daido Metal Company Ltd.Inventors: Tadashi Tanaka, Hidehiko Tamura, Takahiro Niwa
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Patent number: 5629082Abstract: A multilayer material for sliding surface bearings comprises a metal backing layer, a sintered porous bearing layer of a bearing metal, and a low-friction layer consisting of a mixture of PTFE and 5 to 30% by volume metal filler, and fills also the pores of the bearing layer. To reduce the wear the mixture of PTFE and metal filler contains also 5 to 40% by volume PVDF.Type: GrantFiled: June 14, 1994Date of Patent: May 13, 1997Assignee: Kolbenschmidt AktiengesellschaftInventors: Hans-Paul Baureis, Werner Schubert, Manfred Muller
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Patent number: 5573846Abstract: A maintenance-free sliding bearing composed of a metal support and a layer which is directly applied thereto and which consists of a copolymer of ethylene-tetrafluoroethylene forming an intermediate layer to which a second sliding layer of plastics is applied.Type: GrantFiled: December 8, 1993Date of Patent: November 12, 1996Assignee: Norton Pampus GmbHInventors: Friedrich Harig, Dominique Petit