Patents Assigned to Freudenberg
  • Patent number: 8079304
    Abstract: A method and a device for pressing a liquid extract from a material to be pressed include a screw press which conveys the material to be pressed along a pressing route and applies pressure to it. In addition, at least one extracting agent is added to the material to be pressed and is removed, together with the extract, from the pressed material. The extracting agent is supplied to the material to be pressed in an amount that is no more than twice the weight of the extract contained in the material to be pressed. At least a portion of the extracting agent dissolves in the extract.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: December 20, 2011
    Assignee: Harburg-Freudenberger Maschinenbau GmbH
    Inventors: Thorsten Homann, Jens Schulz, Roman Zmuszinski
  • Patent number: 8066287
    Abstract: A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The stiffening bead reduces the seal's propensity for “bell mouthing” while the axially extending barrel portion provides improved shaft followability for the dynamic seal.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 29, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Alexander Berdichevsky
  • Patent number: 8061716
    Abstract: A locking joint seal includes a ring-shaped body made from poly tetra fluoroethylene and having a first end and a second end. The first and second ends each include mutually engageable first and second locking features. The first locking feature including a first axially extending portion overlapping a second axially extending portion of the second locking feature in an assembled condition.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: November 22, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Dale Wirt
  • Publication number: 20110278797
    Abstract: A curable sealant composition free from volatile organic compounds. The composition comprises a urethane acrylate oligomer present in an amount from about 20% to about 60% by weight. A liquid elastomer is present in an amount from about 20% to about 60% by weight, and at least one photoinitiator present in an amount from about 0.5% to about 10% by weight. A process for sealing a dynamic seal assembly in a housing bore is also provided.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 17, 2011
    Applicant: Freudenberg-NOK General Partnership
    Inventor: Michael J. MOORE
  • Publication number: 20110272895
    Abstract: A seal (2) for a housing, in particular, for a battery housing or for another electrochemical energy storage device, comprising a base body (5), the base body (5) having profile seals (6) with profiled sealing surfaces (7), and the profile seals (6) having first ends (6a) and second ends (6b) are interconnected by a corner connector (8) at one end (6a, 6b) of each seal.
    Type: Application
    Filed: November 24, 2010
    Publication date: November 10, 2011
    Applicant: CARL FREUDENBERG KG
    Inventors: Peter Kritzer, Frank Schoenberg, Thomas Kramer, Ricki Paul, Frank Lauer, Georg Puett, Olaf Nahrwold, Thomas Klenk
  • Patent number: 8048550
    Abstract: A gasket elastomer precursor of admixed fluoroelastomer particulate, curing agent, and metallic oxide reduction-agent optionally admixed with any of microspheres, inert particulate, PTFE particles. In one embodiment, the composition is applied to a substrate and cured to provide a fuel cell gasket. The admixtures provide a basis for designed cured admixtures having internally differentiated regions interbonded by cured elastomer.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: November 1, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Hui Liang Yuan, Yingjie Kong
  • Publication number: 20110260409
    Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.
    Type: Application
    Filed: April 22, 2010
    Publication date: October 27, 2011
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventors: Darin Battles, John A. London
  • Publication number: 20110260411
    Abstract: A seal assembly is provided including a pair of end rings axially spaced from one another. A pair of annular seals are each engaged with a respective one of the pair of end rings. A locking ring is engaged with each of the pair of annular seals to connect the opposing end rings and annular seals in a unitized bi-directional seal assembly.
    Type: Application
    Filed: November 17, 2010
    Publication date: October 27, 2011
    Applicant: FREUDENBERG OIL & GAS, LLC
    Inventor: Michael Armand Smith
  • Publication number: 20110241296
    Abstract: A seal includes a mounting portion having an outer diameter surface adapted to be received in a bore. An axially extending leg extends from the mounting portion. A hinge portion is disposed at an end of the axially extending leg. The hinge portion has a generally round cross-section with a larger diameter than the end of the axially extending leg. A main seal lip and a dust lip extend from the hinge portion.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 6, 2011
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventors: Shih Chieh Ting, Muhammad Mujahid Azni, Mohd Imran Rosly
  • Patent number: 8028852
    Abstract: 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: Grant
    Filed: May 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
  • Patent number: 8028999
    Abstract: An axle boot for joint sealing, in particular on the drive train of motor vehicles, includes a substantially axisymmetric bellows, which is designed as a single piece with a connecting collar. The connecting collar has a plurality of indentations projecting towards the inside that are adapted to radial recesses in the external contour of the joint housing. To the outside of the connecting collar are attached compensating pieces that complete the external contour, forming a cylindrical circumferential surface on which a clamp is located.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 4, 2011
    Assignee: Carl Freudenberg KG
    Inventors: Joachim Wolf, Andreas Kammann
  • Patent number: 8028415
    Abstract: A unitized pinion seal assembly has a seal portion and a sleeve portion that are assembled in an interference fit relationship. The unitized pinion seal assembly is assembled to a carrier bearing cage and an axle companion flange with proper spacing between non-sealing components, and without a spacer mounted between the two portions.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: October 4, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Keith Clark
  • Publication number: 20110225754
    Abstract: A cleaning implement (10) comprising a handle (12) a cleaning end (24) coupled to the handle, and a cleaning head (14). The cleaning head may be removably coupled to the cleaning end, and can include a pair of tabs (30) extending through an aperture (32) in the cleaning end. Each tab may have a finger grip (56), and the finger grips may be generally offset from one another. Each tab may have a ledge (50) for contacting an upper surface of the cleaning end near a perimeter of the aperture to retain the cleaning head to the cleaning end. The tabs may be movable such that the ledges are moved out of contact with the upper surface of the cleaning end when removing the cleaning head from the cleaning end.
    Type: Application
    Filed: December 1, 2009
    Publication date: September 22, 2011
    Applicant: Carl Freudenberg KG
    Inventor: Norbert Weis
  • Publication number: 20110230112
    Abstract: This invention has as its object a non-woven product that contains organic and/or mineral particles and its process for production.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 22, 2011
    Applicant: FREUDENBERG POLITEX SA
    Inventors: Frédéric ROSÉ, Georges RIBOULET, Massimo MIGLIAVACCA, Jean-Marc LOSSER, Robert GROTEN
  • Patent number: 8021997
    Abstract: A multicomponent spunbonded nonwoven is provided which is composed of at least two polymers which form interfaces toward one another, which are produced by at least one spinning machine having uniform spinning nozzle apertures, and which are hydrodynamically drawn, lapped in a sheet-like manner, and bonded, the multicomponent spunbonded nonwoven being composed of different filaments which contain at least two polymers, or it being composed of a mixture of multicomponent filaments and monocomponent filaments which each contain only one of the polymers, the multicomponent filament being composed of at least two elementary filaments and the titer of the individual filaments varying by the number of elementary filaments contained in the filaments.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: September 20, 2011
    Assignee: Carl Freudenberg KG
    Inventors: Robert Groten, Ulrich Jahn, Georges Riboulet
  • Patent number: 8016293
    Abstract: A seal assembly for sealing a space between a rotating shaft and a housing. In this regard, the seal assembly includes a rotating component connected to the shaft, and a stationary component connected to the housing. A first seal is connected to the rotating component and a second seal is connected to the stationary component. The first seal includes at least one dispersion member that generates a fluid disturbance in a region adjacent the space during rotation of the rotating component. In this manner, any contaminants that may be prone to enter the space are dispersed away from the space and prevented from entering.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: September 13, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Zachary K. Voydatch, Alexander Berdichevsky
  • Publication number: 20110217573
    Abstract: A sensor for detecting liquids in apparatuses for storing energy, an apparatus for storing energy, a monitoring system for monitoring apparatuses for storing energy, and a method for monitoring apparatuses for storing energy are provided.
    Type: Application
    Filed: November 9, 2010
    Publication date: September 8, 2011
    Applicant: CARL FREUDENBERG KG
    Inventors: Peter Kritzer, Marcel Schreiner
  • Patent number: 8011673
    Abstract: A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The stiffening bead reduces the seal's propensity for “bell mouthing” while the axially extending barrel portion provides improved shaft followability for the dynamic seal.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: September 6, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Alexander Berdichevsky
  • Patent number: 8011669
    Abstract: A valve stem seal can include an elastomeric component having a first portion for having a sealed engagement with a valve stem, a second portion for engaging a valve guide, and a pressure relief lip extending from the second portion. The first portion can be configured to extend away from or within the second portion, and the second portion can have a channel formed therein. 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.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: September 6, 2011
    Assignee: Freudenberg-NOK General Partnership
    Inventors: David Sakata, Tigree Milam Butcher
  • Patent number: 8011055
    Abstract: A cleaning implement that includes a shaft, a mop disposed on one end of the shaft, a wringer, and a fixed grip. The wringer includes a wringing sleeve and a wringer handle. The wringer is movable over a range of travel between a mopping position and a range of wringing positions, in which wringing positions the wringing sleeve covers and compresses at least a portion of the mop to thereby expel liquid from the mop. The wringer is rotatable relative to the shaft through at least a portion of the axial range of travel. The wringer further comprises at least one volute wherein the volute defines a semi-enclosed area inside the wringer, the semi-enclosed area configured to receive a portion of the mop through a gap defined in the volute. The volute includes a first fin and a second fin that define the gap therebetween.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 6, 2011
    Assignee: Carl Freudenberg KG
    Inventor: Paul M. Lesley