Patents Assigned to Freudenberg
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Patent number: 7625955Abstract: A porous article which is formed from a polymeric material, in which characteristics of the surface of the article provided by the polymeric material are modified by having grafted to it chains of polymerized vinyl monomer units, in which the chains each comprise a number of units of a first vinyl monomer and include a unit of a second vinyl monomer which is different from the first vinyl monomer. Preferably, the ratio of the number of units of the first vinyl monomer in each chain to the number of units of the second vinyl monomer is not more than about 60. When the number of second vinyl monomer units in each chain is one, the mean number of first vinyl monomer units in each chain will be not more than 60.Type: GrantFiled: August 11, 2003Date of Patent: December 1, 2009Assignee: Freudenberg Nonwovens LPInventors: Giovanni Gentilcore, Tracy Hoar
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Publication number: 20090288266Abstract: A wringer (1) for a mop (2) with a receptacle (3) in which the mop (2) can be wrung out by inward pressure, where the receptacle (3) consists of a number of wall parts (4), each of which has an inner leg (5) and an outer leg (6), which are connected together, where spacers (7) are arranged between the inner legs (5) and outer legs (6).Type: ApplicationFiled: September 14, 2007Publication date: November 26, 2009Applicant: Carl Freudenberg kgInventors: Uwe Dingert, Leif Kniese, Rudolf Bannasch
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Publication number: 20090289424Abstract: A ball joint seal is provided including an annular seal body including a first axial end and a second axial end. The first axial end acts as a dynamic seal end and includes at least one axially extending seal lip and at least one radially inwardly extending seal lip. The axially extending seal lip and the radially inwardly extending seal lip includes a channel extending therethrough that allows grease to migrate from the ball joint to the axial sealing surface of the dynamic seal. The grease that is allowed to migrate from the ball joint to the sealing surfaces of the dynamic seal help to lubricate these surfaces to improve the service life of the seal and, ultimately, the ball joint assembly.Type: ApplicationFiled: May 20, 2008Publication date: November 26, 2009Applicant: Freudenberg-NOK General PartnershipInventors: Brian K. Fella, Alan J. Rogers, J. Andy Root
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Patent number: 7611287Abstract: A slide bearing for supporting a shaft and comprising at least one bearing shell for receiving the shaft. The bearing shell and the surface of the shaft define a bearing gap. Also described is a mechanism for supplying a lubricant to the bearing gap so that the lubricant can be removed therefrom. To compensate for negative effects of a temperature-dependent change of the bearing gap, there is provided at least one throttling element for throttling the flow of lubricant through the bearing gap.Type: GrantFiled: May 10, 2006Date of Patent: November 3, 2009Assignee: Carl Freudenberg KGInventors: Eberhard Bock, Martin Gramlich
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Publication number: 20090267307Abstract: A high pressure tube seal is provided including a rigid cylindrical tube having an elastomeric seal body molded to an outer surface of the cylindrical tube. The elastomeric seal body includes a pair of raised seal bead portions at opposite ends of the seal body and a pair of recessed groove portions adjacent to the pair of recessed seal bead portions. A pair of anti-extrusion rings are disposed in the recessed groove portion in the cylindrical tube and includes a radially outwardly extending annular portion disposed between a pair of recessed groove portions of the elastomeric seal body. The anti-extrusion rings provide increased pressure sealing capability as compared to conventional tube seal designs.Type: ApplicationFiled: April 28, 2008Publication date: October 29, 2009Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Timothy T. Smith, David M. Seaborn
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Patent number: 7608216Abstract: Methods for preparing a shaped rubber article, comprising admixing at least one thermoplastic material and at least one elastomer material to provide a processable and dimensionally stable rubber composition, shaping the composition, and irradiating the composition to form the shaped rubber article. The dimensional stability of the uncured composition may be provided by partial dynamic vulcanization, high performance reinforcing fillers, fractional curing, or combinations thereof. The elastomer material is present in an amount greater than about 65% by weight based on the total weight of the thermoplastic and elastomer materials present in the admixture.Type: GrantFiled: December 27, 2006Date of Patent: October 27, 2009Assignee: Freudenberg-Nok General PartnershipInventors: Edward H. Park, Francis Joseph Walker
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Publication number: 20090261650Abstract: A unitized seal assembly is provided for installation between linkages of a chain drive designed for tracked vehicles. The seal assembly facilitates field preventative maintenance on the drive chain by utilizing an integral spacer that holds the critical sealing surfaces together at all times, and has a seal head that can be easily removed from the outer link bore of a chain link. Removal of the seal head from the outer link bore causes as-installed clearance passageways between the seal head and seat portions and the spacer to forcefully close and prevent abrasive particles from getting inside the seal and reaching the interior interface junction of the dynamic sealing surfaces during seal maintenance. The seal assembly also includes additional sealing features that provide improved performance.Type: ApplicationFiled: June 24, 2009Publication date: October 22, 2009Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventor: John C. Dahlheimer
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Publication number: 20090258963Abstract: Curable compositions of epoxy-functional acrylic resins having low viscosity and high epoxy functionality, gaskets, seals, elastomeric pottings, and coatings, and other articles prepared therefrom, and methods for preparation of these.Type: ApplicationFiled: April 10, 2008Publication date: October 15, 2009Applicant: Freudenberg-NOK General PartnershipInventor: Michael J. MOORE
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Publication number: 20090247694Abstract: A self-healing elastomer system is provided. The system includes an elastomer that has a surface and a core. The elastomer has an elastomer matrix. The elastomer matrix has first functional groups covalently bonded in the interior. A liquid phase borders on the surface of the elastomer. The liquid phase contains an additive. The first functional groups and the additive are chosen so that, in the case of damage to the elastomer, the first functional groups that come into contact with the liquid phase enter into a reaction. The invention also concerns methods for producing and using the self-healing elastomer system and suitable elastomers.Type: ApplicationFiled: March 27, 2009Publication date: October 1, 2009Applicant: Carl Freudenberg KGInventors: Peter Kritzer, Boris Traber
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Publication number: 20090234057Abstract: The use of a rubber compound wherein the mechanical properties thereof are improved. In particular, the rubber compound has an increased elongation at rupture and/or increased tensile strength and/or increased tear strength and also a reduced compression set (DVR). The rubber compound includes a rubber having at least two functional groups which can be cross-linked by hydrosilylation, a cross-linking agent including hydrosiloxane or a hydrosiloxane derivative or a mixture of several hydrosiloxanes or derivatives, which include at least two SiH-groups per molecule in the centre, a hydrosilylation catalyst system, at least one filling material and a coagent which can be cross-linked by hydrosilylation, for use as a material in the insertion area of the fuel cells.Type: ApplicationFiled: September 16, 2006Publication date: September 17, 2009Applicant: Carl Freudenberg KGInventors: Matthias Adler, Ruth Bieringer, Michael Viol
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Publication number: 20090233075Abstract: A fire blocking non-woven textile containing a first carded web of char-forming fibers containing aramid or melamine/formaldehyde fiber and a second carded web of oxygen-depleting fibers comprising a blend of polyacrylonitrile copolymer with a halogen comonomer and a polyester polymer. The webs may be needled-punched or thermally bonded and remain as separate layers separating the action of the char forming and oxygen depleting layers to optimize char strength, provide a light weight product, which may satisfy 16 CFR 1633 at thicknesses of up to 3.0 mm.Type: ApplicationFiled: April 27, 2009Publication date: September 17, 2009Applicant: FREUDENBERG NONWOVENS LIMITED PARTNERSHIPInventors: Eberhard Link, James Frasch
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Patent number: 7588234Abstract: An air spring sleeve. The sleeve comprises an elastomer body having two plies. Each ply comprises a cord embedded in the elastomer body. Each cord is wound about the sleeve in an opposing direction from the other and each having a helix angle. The first cord helix angle and the second cord helix angle comprise a cord differential helix angle. The first or inner cord helix angle is greater than a second or outer cord helix angle. The cord differential helix angle is in the range of approximately 0° to 2.5°.Type: GrantFiled: July 24, 2003Date of Patent: September 15, 2009Assignee: Freudenberg-NOK General PartnershipInventor: Michael L. Crabtree
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Patent number: 7582378Abstract: In one aspect, a fuel cell assembly comprises a separator plate having a surface with a surface feature; and a seal comprising a resilient member defining a bead and a cooperating feature for engagement with the surface feature of the plate. The surface feature of the separator plate and the cooperating feature of the seal provide for engagement and preferably releasable engagement with one another during at least an assembly operation.Type: GrantFiled: June 30, 2005Date of Patent: September 1, 2009Assignee: Freudenberg-NOK General PartnershipInventors: Joseph J. Heystek, Ryan A. Vanderbilt, Christian F Fau
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Publication number: 20090211455Abstract: Filter arrangement (1), comprising a filter (2) and a sensor device (3) which is arranged downstream of the filter (2) for monitoring the service life of the filter (2), having at least one measuring sensor (4) for detecting the flow velocity of the fluid (5) which flows through the filter, wherein the sensor device (3) has a further measuring sensor (6) for measuring the air humidity of the fluid (5) which flows through the filter.Type: ApplicationFiled: July 27, 2006Publication date: August 27, 2009Applicant: CARL FREUDENBERG KGInventors: Jürgen Günther, Thomas Stösser, Heinz Reinhardt, Christopher Klatt
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Publication number: 20090214846Abstract: The invention relates to a fixable nonwoven interlining material for use in the textile industry, comprising at least one melt-spun fiber layer and at least one additional fibrous material layer, the fixable interlining material being provided with an adhesive substance at least in partial regions. A particularly high elasticity of the fixable interlining material is achieved by the fact that the melt-spun fibers are composed of an elastic fibrous material, and the at least one layer of fibrous material is composed of staple fibers, and the at least one elastic melt-spun fiber layer and the at least one staple fiber layer are laid one on top of the other in the form of a flat unbonded fiber fabric, and are subsequently bonded by use of a bonding step known as such.Type: ApplicationFiled: April 20, 2006Publication date: August 27, 2009Applicant: CARL FREUDENBERG KGInventor: Michael Kalbe
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Publication number: 20090212031Abstract: A method for producing a sealing ring in which a hollow cylinder is first formed from a sheet metal, the mutually contacting edges of the sheet metal being joined in a substance-to-substance bond, the bond being produced in such a way that a bead is formed at least on the outer periphery, along the mutually contacting edges, and is flattened in a subsequent working process.Type: ApplicationFiled: February 1, 2007Publication date: August 27, 2009Applicant: Carl Freudenberg KGInventors: Hermann Stahl, Norbert Schnabel
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Publication number: 20090205300Abstract: A filter element comprising a first planar layer (1) and a second planar layer (2), the layers (1, 2) being joined to one another to form at least one volume and at least one opening (3), and the layers (1, 2) being spaced apart from one another in places by means (4). With regard to the object of providing a filter assembly which is easily manufactured and ensures proper operation, the invention is characterized in that the means (4) are formed from at least one layer (1, 2). An assembly comprising a filter element and a frame is also described. Also described is a layer (1, 2) having deep-drawn areas.Type: ApplicationFiled: February 2, 2007Publication date: August 20, 2009Applicant: CARL FREUDENBERG KGInventors: Peter Pfeuffer, Rainer Kaffenberger
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Publication number: 20090203846Abstract: Thermoplastic vulcanizate compositions prepared from fluorothermoplastic matrix and dispersed fluoroelastomeric regions, and articles comprising the thermoplastic vulcanizate, exhibiting improved resistance to polar organic solvents.Type: ApplicationFiled: February 8, 2008Publication date: August 13, 2009Applicant: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
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Publication number: 20090199715Abstract: A Filter bag for bag filter systems, comprising a tubular filter body which is closed at one end and has at the other end a retainer for attachment in the bag filter system, characterized in that the filter body is composed of a thermally bonded nonwoven.Type: ApplicationFiled: May 20, 2006Publication date: August 13, 2009Applicant: CARL FREUDENBERG KGInventors: Mike Koschak, Sebastian Junqueras
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Patent number: D599969Type: GrantFiled: December 1, 2008Date of Patent: September 8, 2009Assignee: Carl Freudenberg KGInventor: Norbert Weis
