Patents Assigned to Freudenberg
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Publication number: 20140110904Abstract: A dynamic lip seal is provided for sealing between a housing and a shaft and with a fluid medium to be sealed on an oil side and air on an air side of the seal. The seal includes a seal lip extending from a seal body and including a shaft contact portion adapted for engagement with the shaft and including a static band and a first set of spiral grooves disposed on an oil side of the static band, and a second set of spiral grooves on an air side of the static band. The first and second sets of spiral grooves are both configured to pump oil toward the static band when the shaft is rotated in a first direction, and the first and second sets of spiral grooves are both configured to pump oil away from the static band when the shaft is rotated in a second direction.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventor: Freudenberg-NOK General Partnership
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Patent number: 8704140Abstract: A heating element includes a support made of flexible material and a flexible grid structure with an electrically conductive paste disposed on the support.Type: GrantFiled: March 15, 2010Date of Patent: April 22, 2014Assignee: Carl Freudenberg KGInventors: Andreas Kapp, Helmut Zischka, Juergen Guenther, Benno Schmied, Michael Fuchs
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Patent number: 8702054Abstract: Fastening element (1) for fastening cleaning implements (2) to a cleaning cart (3) with unequal height/width ratios of non-rotationally symmetric supporting tubes (4) comprising a holding section (5) for fastening the fastening element (1) and also at least one first and one second receptacle element (6, 7), wherein these receptacle elements are constructed so that cleaning implements (2) can be attached in at least two different planes.Type: GrantFiled: February 6, 2008Date of Patent: April 22, 2014Assignee: Carl Freudenberg KGInventors: Falk Lindner, Jens Deerberg
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Patent number: 8695988Abstract: A tube seal is provided including a rigid cylindrical tube and an elastomeric seal body molded to the outer surface of the cylindrical tube. The rigid cylindrical tube includes a recessed annular groove at each end thereof for receiving the elastomeric seal body therein to create a mechanical connection to resist the seal body from being pulled away from the cylindrical tube. The tube seal is also incorporated into a diameter reducing tube seal, an integrated tube seal and filter design and an integrated tube seal and valve design.Type: GrantFiled: May 21, 2007Date of Patent: April 15, 2014Assignee: Freudenberg-NOK General PartnershipInventor: Timothy T. Smith
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Patent number: 8689391Abstract: A mop press for wringing liquids out of a cleaning device includes a housing having a fastening mechanism; a lever-actuated wringing device disposed in the housing; and a support device disposed on the housing at a horizontal distance from the fastening mechanism.Type: GrantFiled: April 24, 2009Date of Patent: April 8, 2014Assignee: Carl Freudenberg KGInventors: Andreas Eisenhut, Markus Rueckheim, Juergen Huckele, Jens Deerberg
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Patent number: 8691358Abstract: Component (1) having at least one element (2) having a curved surface (3), wherein the element (2) is provided with a coded, electronically readable identification (4), which is introduced into the surface as a topographic identification (4), wherein the identification (4) is embodied in such a way that it can be read in two dimensions by means of a reader.Type: GrantFiled: November 12, 2010Date of Patent: April 8, 2014Assignee: Carl Freudenberg KGInventors: Peter Kritzer, Kurt Ewald, Christian Geubert, Thorsten Wieland, Jan Helms
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Publication number: 20140091533Abstract: A plug-in piece 1 for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body 2, which on its ends exhibits annularly encircling sealing elements, which can be made to engage to produce a sealing connection with the cylindrical surfaces to be sealed, wherein at least one of the sealing elements is configured as an annularly encircling sealing bead 3, 30 on the outer surface of the support body 2, with a spherically curved sealing surface. Provision is made that the spherical radius of the sealing surface (3, 30) is chosen so that the center of the sphere is roughly at the axis of support body (2) symmetry. Thus, the compression forces are ensured to remain largely constant, independent of the angular setting over the entire surface of the sealing bead.Type: ApplicationFiled: August 28, 2013Publication date: April 3, 2014Applicant: Carl Freudenberg KGInventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
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Publication number: 20140091532Abstract: A plug-in piece for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body which on its ends exhibits annularly encircling sealing elements with a spherically curved sealing surface with a fluting formed therein.Type: ApplicationFiled: August 23, 2013Publication date: April 3, 2014Applicant: CARL FREUDENBERG KGInventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
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Publication number: 20140079465Abstract: A sealing bellows includes a sealing region disposed at a first end on a first end face and an attachment region disposed at a second end on a second end face. The sealing region includes an integrated first clamping element with a first internal diameter. The attachment region includes an integrated second clamping element with a second internal diameter. A casing is disposed in an axial direction of the sealing bellows between the sealing region and the attachment region with a third greatest internal diameter. The casing, the sealing region and the attachment region merge integrally into one another and are composed of a flexible rubber material, and, as a condition of production: the casing is substantially spherical; and the third greatest internal diameter of the casing is larger than the first internal diameter of the first clamping element and the second internal diameter of the second clamping element.Type: ApplicationFiled: September 18, 2013Publication date: March 20, 2014Applicant: Carl Freudenberg KGInventor: Nedal Idies
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Patent number: 8672007Abstract: A sealing arrangement includes a stationary first machine part configured as an axle stub including at least one axial inflow hole adjoining with at least one opening that faces towards an outside surface of the axle stub in a radial direction of the axle stub. A second machine part configured as a container includes a hub rotatably surrounding the axle stub. The hub includes at least one opening that corresponds to the at least one opening of the axle stub in the radial direction so as to form one or more pairs of adjacent openings along an axial direction. A radial seal is disposed between each pair of adjacent openings.Type: GrantFiled: February 8, 2011Date of Patent: March 18, 2014Assignee: Carl Freudenberg KGInventors: Ulrich Dahlhaus-Preussler, Massimo Barban
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Publication number: 20140070497Abstract: A slide ring seal arrangement including a rotating slide ring (2), a static slide ring (3) and a preload device for preloading at least one of the slide rings, wherein the preload device includes a spring washer (7) with a basic body (70), with at least one spring bar (71) and with at least one engagement region (72) provided on the end of the spring bar (71), wherein the spring bars (71) run in the circumferential direction of the spring washer (7), and wherein the engagement region (72) is in engagement with a recess (30) provided on the slide ring in order to exert on the slide ring a preload force (F) acting in the axial direction (X-X).Type: ApplicationFiled: January 17, 2012Publication date: March 13, 2014Applicant: CARL FREUDENBERG KGInventors: Ferdinand Werdecker, Andreas Fesl, Thomas Keller, Peter Feigl
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Publication number: 20140069068Abstract: A filter cartridge includes a filter medium configured as an elongated bellows having a first and a second longitudinal end. The bellows are connected at the first longitudinal end to a base and at the second longitudinal end to a top. The bellows enclose a central passage. The bellows are configured in a shape of a prism.Type: ApplicationFiled: September 10, 2013Publication date: March 13, 2014Applicant: Carl Freudenberg KGInventors: Karsten Schulz, Maik Sieh, Juergen Klaus, Juergen Becker
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Patent number: 8668203Abstract: A valve stem seal can include an elastomeric component having a first portion for having a sealed engagement with a valve stem, and a pressure relief lip engaging a valve guide. The pressure relief lip can have a sealing configuration and a venting configuration. The venting configuration can allow excess exhaust gases to vent from a combustion chamber. After the venting of excess exhaust gases, the pressure relief lip can close to the sealing configuration to prevent oil from entering the combustion chamber. The elastomeric body or the valve guide can include a pressure relief channel. The elastomeric body can also include a bumper engaging the valve guide. The pressure relief channel can be disposed in the bumper.Type: GrantFiled: June 26, 2012Date of Patent: March 11, 2014Assignee: Freudenberg-NOK General PartnershipInventor: David Sakata
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Publication number: 20140060805Abstract: The present disclosure provides a casing seal for a wellhead, including a casing with an internal surface having an annular groove therein. A fluid seal is disposed in the annular groove and includes an internal bead for sealing against a cylindrical surface of an inner case or tube. A swellable material is disposed within the annular groove and surrounds the fluid seal. An energizing port is in communication with the annular groove for delivering fluid to the swellable material to cause the swellable material to expand and further load the fluid seal.Type: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: FREUDENBERG OIL & GAS, LLCInventors: Robert Angus CAMPBELL, Richard T. Schmidt
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Publication number: 20140065498Abstract: A filter module (1) for cleaning a fluid, including a housing (2) with an inlet opening (3) and an outlet opening (4), wherein the housing (2) forms an accommodation space (5) in which at least one filter element (6) is accommodated, wherein the filter element (6) exhibits a filter medium (7) which is configured like a block in view of the problem of configuring a filter model such that the dead space in the housing is as small as possible, that the filter module has good filter performance and a cost-effective as well as time-saving fabrication and offers effective use of a filter medium, characterized in that the filter medium (7) is pleated and is telescoped into a block (8).Type: ApplicationFiled: August 20, 2013Publication date: March 6, 2014Applicant: CARL FREUDENBERG KGInventors: Thomas FISCHER, Hannes CLASEN, Uwe FELBER, Klaus LEISTER
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Publication number: 20140062027Abstract: A mechanical face seal including a primary ring which is axially movably mounted, and a mating ring (3, 3?, 3?), wherein the primary ring and a mating ring each comprise adjoining sealing surfaces. The primary ring is pressed by a spring against the mating ring. The spring has a bellows-like shape. The spring is made out of an elastomer. The mechanical face seal achieves a small installation space for a mechanical face seal.Type: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: CARL FREUDENBERG KGInventors: Soeren NEUBERGER, Klaus LANG, Peter FEIGL, Clemens SIMON, Andreas LEDERER, Pascal PENOTY, Eberhard BOCK
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Publication number: 20140054864Abstract: A sealing assembly for sealing a surface of a machine element from a medium on one side and surroundings on the other side includes a sealing ring and a protector ring. The sealing ring has at least one dynamically stressed sealing lip configured to contact, in a sealing manner, the surface to be sealed. The protector ring is disposed on a side of the sealing lip that is to be axially remote from the medium. The protector ring has a circumferential surface configured to be disposed adjacent to the surface to be sealed with a radial spacing such that the circumferential surface delimits a choke gap together with the surface to be sealed. The circumferential surface of the protector ring includes a conveying structure having a conveying direction that is axially away from the sealing lip and towards the surroundings.Type: ApplicationFiled: August 22, 2013Publication date: February 27, 2014Applicant: Carl Freudenberg KGInventors: Christian KOHL, Jens HOFMANN
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Patent number: 8652976Abstract: 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: GrantFiled: April 20, 2006Date of Patent: February 18, 2014Assignee: Carl Freudenberg KGInventors: Michael Kalbe, Oliver Staudenmayer, Manfred Jöst, Peter Rudek
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Patent number: 8650698Abstract: The invention relates to a cleaning appliance (1) including a wiper plate (2) having a central region (3) from which a plurality of arms (4) extend on both sides. The wiper plate (2) includes a cleaning side (5) to which a cleaning cloth (6) can be fixed. The cleaning cloth is placed on the floor to be cleaned, with a flat surface in the section associated with the central region (3), and essentially linearly in the sections associated with the arms (4).Type: GrantFiled: June 26, 2009Date of Patent: February 18, 2014Assignee: Carl Freudenberg KGInventors: Uwe Dingert, Hans Jörg Clemen
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Patent number: 8647758Abstract: An electrochemical energy storage device provides problem-free pressure compensation at a permanently high impermeability, includes a storage housing (1), which encases a volume, in which cells are accommodated, wherein the storage housing (1) protects the volume from the surroundings, and includes a volume compensation device (2), which compensates pressure differences between the interior of the storage housing (1) and the surroundings without a material replacement between the surroundings and the interior of the storage housing (1).Type: GrantFiled: August 12, 2010Date of Patent: February 11, 2014Assignee: Carl Freudenberg, KGInventors: Peter Kritzer, Thomas Klenk