Patents Assigned to Freudenberg
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Patent number: 7662886Abstract: Processable rubber compositions contain a vulcanized elastomeric material dispersed in a matrix of a thermoplastic polymeric material. The vulcanized elastomeric material is a peroxide cure polymeric material containing repeating units derived from fluorine-containing monomers and at least one peroxide cure site monomer. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions are made by combining a radical curing system, a fluorocarbon elastomer material, and a fluoroplastic material, and heating the mixture at a temperature and for a time sufficient to effect vulcanization of the elastomeric material, while mechanical energy is applied to mix the mixture during the heating step. Shaped articles may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extrusion.Type: GrantFiled: September 30, 2008Date of Patent: February 16, 2010Assignee: Freudenberg-NOK General PartnershipInventor: Edward Hosung Park
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Publication number: 20100035502Abstract: The invention relates to a high-strength light-weight non-woven fabric made of spunbonded non-woven, particularly for use as a reinforcement or strengthening material, comprising at least one ply of melt-spun synthetic filaments, which are bonded by means of high-energy water jets, characterized in that it includes a thermally activatable binding agent, which is applied onto the ply of melt-spun filaments in the form of at least one thin layer. The invention further relates to a method for producing such a non-woven fabric.Type: ApplicationFiled: January 31, 2008Publication date: February 11, 2010Applicant: CARL FREUDENBERG KGInventors: Ivo Ruzek, Ararad Emirze
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Publication number: 20100035119Abstract: The invention relates to fabrics, comprising fibers and a coating that is covalently bound on the surface of the fibers, characterized in that the fabrics are temperature-stable at 200° C. The invention further relates to methods for the production thereof, fuel cells and gas diffusion layers comprising the fabrics, and to the use thereof in fuel cells and gas diffusion layers.Type: ApplicationFiled: November 21, 2007Publication date: February 11, 2010Applicant: CARL FREUDENBERG KGInventors: Klaus-Dietmar Wagner, Gunter Scharfenberger, Birgit Severich, Kristina Margarit-Puri
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Patent number: 7658386Abstract: The present invention discloses a seal and a method of sealing dynamic shaft applications. The seal comprises an inner portion, an outer portion, a faceplate, and at least one flexible member located between the inner and outer portions. The method comprises providing a dynamic shaft assembly containing a bore for receiving a seal, providing a unitized seal, and placing the unitized seal on the shaft, thus sealing the assembly so that lubricants may not escape, and foreign material may not enter. The unitized seal can provide permanently lubricated sealed bearings in severe service conditions such as rollers and idlers of track-driven vehicles and agricultural equipment.Type: GrantFiled: September 19, 2005Date of Patent: February 9, 2010Assignee: Freudenberg-NOK General PartnershipInventor: Michael R. Oldenburg
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Patent number: 7658387Abstract: A dynamic seal is provided which is made of a processable rubber composition containing a matrix of vulcanized elastomeric material with powder filler dispersed therein. In a preferred embodiment, the elastomeric material contains a micro powder which has repeating units derived from tetrafluoroethylene. The micro powder has a median particle size of between 1 and 50 ?m.Type: GrantFiled: June 27, 2005Date of Patent: February 9, 2010Assignee: Freudenberg-NOK General PartnershipInventor: Edward H Park
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Publication number: 20100025938Abstract: A bearing seal is provided with an annular outer casing having an axially extending portion and a radially inwardly extending portion. A sleeve member is disposed within the annular casing and includes an axially extending portion adapted to be attached to a rotating shaft and a radially outwardly extending portion. An annular seal including a seal body is mounted to the annular casing. A first seal lip extends axially from the seal body and engages the radially outwardly extending portion of the sleeve member. A dual contact lip extends from the seal body and includes a first seal portion and a second seal portion each contacting the sleeve member at axially spaced locations.Type: ApplicationFiled: June 7, 2007Publication date: February 4, 2010Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Alexander Berdichevsky, Kevin Randal Colby, Lori Anne Cieslinski
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Patent number: 7654537Abstract: A gasket for a valve in an internal combustion engine is provided with a support element having a tubular configuration according to an axis and coaxially mounted on the valve. An elastically deformable element is interposed between the support element and the valve. The support element includes a first portion elongated according to the above mentioned axis, and a second portion extending from the first portion in a direction transversal to the axis, at least partially housed in an annular seat of the elastically deformable element and having its radially outermost end connected to the first portion itself. The support element comprises a third portion extending from the radially innermost end of the second portion and folded on the second portion itself so as to generate, in the folding area, a rounded edge cooperating with the annular seat of the elastically deformable element.Type: GrantFiled: December 20, 2007Date of Patent: February 2, 2010Assignee: Corcos Industriale S.a.s. di Freudenberg & Cosso S.r.l.Inventor: Francesco Scarano
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Publication number: 20100021517Abstract: In order to provide a non-woven fiber fabric, in particular, in the form of a flat material or as part of a flat material which can be used as a biodegradable material in medicine, in particular, as an implant or carrier material for living cells (tissue engineering) but also a non-woven fiber fabric which can be used in food technology in a variety of applications, in particular, as a preliminary product for foods, a non-woven fiber fabric is provided containing fibers consisting of a gelatin material, wherein the thickness of the fibers is on average 1 to 500 ?m and wherein the non-woven fiber fabric has a plurality of areas, at which two or more fibers merge into one another without any phase boundary.Type: ApplicationFiled: August 28, 2009Publication date: January 28, 2010Applicants: GELITA AG, CARL FREUDENBERG KGInventors: Michael Ahlers, Denis Reibel, Jutta Hoffmann
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Patent number: 7651102Abstract: A mounting guard ring for a sealing ring with at least one sealing lip, surrounding a sleeve-shaped protective ring with a supporting surface for the sealing lip disposed at the outer periphery and a holding device shaped as a grip, the protective ring being provided in at least one peripheral region with a first predetermined breaking site and being capable of being severed along the first predetermined breaking site by pulling on the holding device, the protective ring being closed off in sealing manner by a disk-shaped lid.Type: GrantFiled: October 15, 2004Date of Patent: January 26, 2010Assignee: Carl Freudenberg KGInventors: Martin Heldmann, Gunter Hintenlang, Uwe Henrich
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Publication number: 20100011562Abstract: In a first embodiment, the present disclosure is directed at a non-woven fabric, which provides, at selected locations, the ability to mechanically and releasably join with a hook fastener. The non-woven web may include entangled fibers which have been overprinted with dots, lines or designs to create defined locations of joined fibers which may engage with a corresponding hook profile. The print material may include thermoplastic and thermoset binder systems. The binder systems may include a gas expanding substrate (e.g. gas-filled microspheres) which may provide a relatively thicker location for joining with the corresponding hook engaging material.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Applicant: FREUDENBERG NONWOVENS, L.P.Inventors: Kate CAULEY, Eberhard Link, Eva WELSH
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Patent number: 7640917Abstract: A fuel injector tip seal is provided including improved resistance to the heat and pressures of combustion gas. According to one aspect, the tip seal is formed from polytetrafluoroethylene and between 10 and 35 percent carbon fiber. The material offers improved surface finish and deformation resistance as well as improved thermal conduction and keeps thermal expansion low as compared to conventional fuel injector tip seal designs. According to a further aspect, a revised seal groove design is provided that allows for expansion and deformation of the tip seal and creates more pressure to the outside diameter face when pressure is applied at the tip. According to another aspect, the tip seal is formed of a flat disk-shaped seal body that can be assembled on the fuel injector by an assembly cone device that allows the disk-shaped seal body to be flipped to a ring-shaped configuration in its assembled position.Type: GrantFiled: June 21, 2007Date of Patent: January 5, 2010Assignee: Freudenberg-NOK General PartnershipInventors: Gregory J. Daniel, Raymond Lee Szparagowski
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Publication number: 20090313960Abstract: A filter element, comprising a first component, a second component, and a filter medium, which is situated between the components, the components being spaced apart by the filter medium, the components and the filter medium delimiting a permeable volume, and the filter medium implementing a wall surface, through which a fluid may pass for filtering, is characterized in regard to the object of designing and refining a filter element in such a way that it may be used in tight installation spaces in that the components are oriented inclined to one another or have surfaces inclined to one another.Type: ApplicationFiled: June 9, 2009Publication date: December 24, 2009Applicants: CARL FREUDENBERG KG, MONTAPLAST GMBHInventors: Uwe Felber, Ulrich Stahl, Claudio Marin, Christian Arns
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Publication number: 20090309314Abstract: A bushing, including a core, a sleeve that surrounds the core and a spring element that is arranged between the core and the sleeve, wherein, on at least one face of the bushing, there is a sealing element that seals the spring element vis-à-vis the environment.Type: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Applicant: Carl Freudenberg KGInventors: Andreas Erl, Michael Ebert, Majid Djahani
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Publication number: 20090301308Abstract: A filter arrangement for cleaning fuel cell supply air, including at least two filter layers, whereby a first filter layer is designed as a coarse filter and a second filter layer as a fine filter, wherein the second filter layer includes an electret filter material.Type: ApplicationFiled: June 22, 2006Publication date: December 10, 2009Applicant: Carl FreudenbergInventors: Klaus Leister, Verena Huecker, Dieter Hintenlang
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Publication number: 20090301046Abstract: A filter element for use as an engine intake air filter, comprising a frame and a filter medium, wherein the frame at least partially surrounds the filter medium and wherein the frame comprises a sealing means that protrudes from the filter medium, is, with respect to the object of providing a filter element that exhibits a very high separation efficiency and is economically produced, characterized in that the frame is designed as a two-component part that comprises the sealing means and a seat for the filter medium.Type: ApplicationFiled: June 8, 2009Publication date: December 10, 2009Applicant: CARL FREUDENBERG KGInventors: Uwe FELBER, Ulrich STAHL, Claudio MARIN
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Publication number: 20090297809Abstract: A dryer sheet substrate is provided having improved loft and reduced fuzz wherein the substrate comprises relatively low denier bicomponent fibers. The bicomponent fibers may comprise two or more polymers having different melting temperatures, with the relatively lower melting temperature polymer making up at least a portion of the outer surface of the fiber. Upon heating to a sufficient temperature, the lower melting temperature fibers may soften and melt, providing bonding at crossover points of the fibers in the laid web. The web indicates advantageous characteristics with respect to thickness (loft), fuzz factor and ability to absorb a fabric treating composition.Type: ApplicationFiled: May 29, 2008Publication date: December 3, 2009Applicant: FREUDENBERG NONWOVENS, L.P.Inventors: Samuel Keith Black, Terezie Zapletalova, John McNabb, Jeffrey Stine
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Publication number: 20090295147Abstract: A seal shipping system includes a seal having an outer diameter surface and an inner sealing lip. A sleeve member having a cylindrical body and a radially extending flange extending from the cylindrical body engages the inner sealing lip. An annular collar surrounds the radially extending flange of the sleeve member and frictionally engages the outer diameter surface of the seal.Type: ApplicationFiled: May 30, 2008Publication date: December 3, 2009Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
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Patent number: 7624469Abstract: Disclosed is a cleaning implement, preferably in the form of a roller mop, that includes a mop head, a shaft, and a wringer. The cleaning implement further includes a connecting link connected to the mop head and to the shaft or wringer. The mop head has a connecting side and a cleaning side thereby defining a mop axis, which axis is disposed at an oblique angle with respect to the longitudinal axis of the shaft. At least a portion of the connecting link is disposed with the shaft. The mop head can include a scrubber attachment. Also inventive is the disclosed mechanism by which the scrubber attachment connects to the head of the mop. Various embodiments of mop heads can be used with the invention. A cleaning cloth can be mounted to the mop head.Type: GrantFiled: January 12, 2004Date of Patent: December 1, 2009Assignee: Freudenberg Household ProductsInventors: Paul B. Specht, Paul M. Lesley, David A. McKnight
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Patent number: D606270Type: GrantFiled: July 3, 2009Date of Patent: December 15, 2009Assignee: Freudenberg Hosehold Products LPInventors: Norbert Weis, Paul Lesley, Robert Giacolo
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Patent number: D607169Type: GrantFiled: October 25, 2007Date of Patent: December 29, 2009Assignee: Freudenberg Household Products LPInventors: Norbert Weis, Paul Lesley, Robert Giacolo