Patents Assigned to Freudenberg
  • Publication number: 20140110904
    Abstract: 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: Application
    Filed: October 19, 2012
    Publication date: April 24, 2014
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventor: Freudenberg-NOK General Partnership
  • Patent number: 8704140
    Abstract: 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: Grant
    Filed: March 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Andreas Kapp, Helmut Zischka, Juergen Guenther, Benno Schmied, Michael Fuchs
  • Patent number: 8702054
    Abstract: 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: Grant
    Filed: February 6, 2008
    Date of Patent: April 22, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Falk Lindner, Jens Deerberg
  • Patent number: 8695988
    Abstract: 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: Grant
    Filed: May 21, 2007
    Date of Patent: April 15, 2014
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Timothy T. Smith
  • Patent number: 8689391
    Abstract: 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: Grant
    Filed: April 24, 2009
    Date of Patent: April 8, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Andreas Eisenhut, Markus Rueckheim, Juergen Huckele, Jens Deerberg
  • Patent number: 8691358
    Abstract: 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: Grant
    Filed: November 12, 2010
    Date of Patent: April 8, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Peter Kritzer, Kurt Ewald, Christian Geubert, Thorsten Wieland, Jan Helms
  • Publication number: 20140091533
    Abstract: 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: Application
    Filed: August 28, 2013
    Publication date: April 3, 2014
    Applicant: Carl Freudenberg KG
    Inventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
  • Publication number: 20140091532
    Abstract: 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: Application
    Filed: August 23, 2013
    Publication date: April 3, 2014
    Applicant: CARL FREUDENBERG KG
    Inventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
  • Publication number: 20140079465
    Abstract: 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: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Applicant: Carl Freudenberg KG
    Inventor: Nedal Idies
  • Patent number: 8672007
    Abstract: 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: Grant
    Filed: February 8, 2011
    Date of Patent: March 18, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Ulrich Dahlhaus-Preussler, Massimo Barban
  • Publication number: 20140070497
    Abstract: 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: Application
    Filed: January 17, 2012
    Publication date: March 13, 2014
    Applicant: CARL FREUDENBERG KG
    Inventors: Ferdinand Werdecker, Andreas Fesl, Thomas Keller, Peter Feigl
  • Publication number: 20140069068
    Abstract: 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: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: Carl Freudenberg KG
    Inventors: Karsten Schulz, Maik Sieh, Juergen Klaus, Juergen Becker
  • Patent number: 8668203
    Abstract: 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: Grant
    Filed: June 26, 2012
    Date of Patent: March 11, 2014
    Assignee: Freudenberg-NOK General Partnership
    Inventor: David Sakata
  • Publication number: 20140060805
    Abstract: 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: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: FREUDENBERG OIL & GAS, LLC
    Inventors: Robert Angus CAMPBELL, Richard T. Schmidt
  • Publication number: 20140065498
    Abstract: 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: Application
    Filed: August 20, 2013
    Publication date: March 6, 2014
    Applicant: CARL FREUDENBERG KG
    Inventors: Thomas FISCHER, Hannes CLASEN, Uwe FELBER, Klaus LEISTER
  • Publication number: 20140062027
    Abstract: 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: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: CARL FREUDENBERG KG
    Inventors: Soeren NEUBERGER, Klaus LANG, Peter FEIGL, Clemens SIMON, Andreas LEDERER, Pascal PENOTY, Eberhard BOCK
  • Publication number: 20140054864
    Abstract: 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: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: Carl Freudenberg KG
    Inventors: Christian KOHL, Jens HOFMANN
  • Patent number: 8652976
    Abstract: 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: Grant
    Filed: April 20, 2006
    Date of Patent: February 18, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Michael Kalbe, Oliver Staudenmayer, Manfred Jöst, Peter Rudek
  • Patent number: 8650698
    Abstract: 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: Grant
    Filed: June 26, 2009
    Date of Patent: February 18, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Uwe Dingert, Hans Jörg Clemen
  • Patent number: 8647758
    Abstract: 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: Grant
    Filed: August 12, 2010
    Date of Patent: February 11, 2014
    Assignee: Carl Freudenberg, KG
    Inventors: Peter Kritzer, Thomas Klenk