Patents Assigned to Freudenberg
  • MULTI-LAYER COMPOSITE FOR USE IN AN AIR FILTER
    Publication number: 20100119794
    Abstract: The invention relates to a multi-layer composite for use in an air filter, comprising at least one upstream ply (1) and a support ply (2) that is connected to the upstream ply. The upstream ply (1) is made of a non-woven fabric and has a finer porosity than the support ply (2). The aim of the invention is to form and further develop a multi-layer composite for use in an air filter, in particular in a filter bag in such a manner that the upstream ply can be connected in a stable and economical manner to the support ply. Said invention is characterised in that the upstream ply (1) is embodied as a spun bonded non-woven, the continuous filaments (3) of which are at least partially twisted or interwoven with the support ply (2).
    Type: Application
    Filed: March 13, 2008
    Publication date: May 13, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Heiko Manstein, Robert Groton, Anthony Hollingsworth, Ingrid Ewald
  • Rubber compound
    Patent number: 7714053
    Abstract: A method for producing 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 which has at least two functional groups which can be cross-linked by hydrosilylation, a cross-linking agent consisting of hydrosiloxane or a hydrosiloxane derivative or a mixture of several hydrosiloxanes or derivatives, which include at least two SiH-groups per molecule in the center, a hydrosilylation catalyst system, at least one filling material and a coagent which can be cross-linked by hydrosilylation.
    Type: Grant
    Filed: September 16, 2006
    Date of Patent: May 11, 2010
    Assignee: Carl Freudenberg KG
    Inventors: Matthias Adler, Ruth Bieringer, Michael Viol
  • Unitized pinion seal for an axle
    Patent number: 7712745
    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: April 16, 2004
    Date of Patent: May 11, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Keith Clark
  • LAYER FOR USE IN A HEPA FILTER ELEMENT
    Publication number: 20100101199
    Abstract: A layer for use in a HEPA filter element solves the problem of disclosing a filter element which satisfies HEPA requirements. Said layer comprises a first support layer (1) for stabilization which contains polypropylene fibers, and a second deposition layer (2) which contains polypropylene fibers, wherein the polypropylene fibers of the deposition layer (2) are at least partially electrostatically charged, and wherein the support layer (1) and the deposition layer (2) are constructed as nonwoven material which is at least partially free of glass fiber. The layer according to the invention can be easily pleated while having excellent filter efficiency.
    Type: Application
    Filed: December 3, 2007
    Publication date: April 29, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Klauss Veeser, Armin Greiner, Harold Von Schischka, Juergen Adolph, Toan-Hieu Giang
  • HIGH-STRENGTH LIGHTWEIGHT TUFTED BACKING AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20100104796
    Abstract: The invention relates to a high-strength lightweight tufted backing, particularly for use as primary or secondary carpet backing, 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 small amount of a thermally activatable binding agent, which is applied onto the ply of melt-spun filaments in the form of at least one thin layer.
    Type: Application
    Filed: January 22, 2008
    Publication date: April 29, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Ivo Ruzek, Ararad Emirze
  • Core push-in seal
    Patent number: 7703744
    Abstract: A solenoid valve may include a housing, a solenoid coil, and a plunger. The solenoid coil may be disposed about an external portion of the housing and the plunger may be slidably disposed within the housing. The plunger may include a recess in a first end thereof having a seal assembly located and retained therein through a mechanical engagement therewith.
    Type: Grant
    Filed: March 3, 2007
    Date of Patent: April 27, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventor: John B. Wagner
  • High retention strength jounce bumper assembly
    Patent number: 7703755
    Abstract: A jounce bumper assembly is provided including a cup-shaped member adapted to be mounted to a vehicle. A spacer formed of an appropriate engineered material is mounted within the cup-shaped member and a jounce bumper is mounted to the spacer. The cup-shaped member includes retaining tabs which engage a shoulder of the jounce bumper for retaining the jounce bumper in the cup-shaped member.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 27, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Laurie J. Schleck, Mickey L. Love
  • Solenoid Plunger Core Seal
    Publication number: 20100090141
    Abstract: A solenoid valve may include a housing, a solenoid coil, and a plunger. The solenoid coil may be disposed about an external portion of the housing and the plunger may be slidably disposed within the housing. The plunger may include a recess in a first end thereof having a seal assembly located therein and including a pin member inserted into the recess and an elastomeric sealing element molded around the pin member while inserted into the recess of the plunger.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventor: J. Brian Cloud
  • Mass Damper
    Publication number: 20100083653
    Abstract: A counterbalance system for counterbalancing vibrations of a machine, including a housing adapted to be mounted to the machine. A hydraulic chamber is disposed within the housing and has a first and a second diaphragm on opposite sides thereof. A hydraulic fluid is disposed in the hydraulic chamber. A first air chamber is on a first side of the first diaphragm opposite the hydraulic chamber and a second air chamber is disposed on a second side of the second diaphragm opposite the hydraulic chamber. The hydraulic fluid acts as a mass and the diaphragms and air chambers act as a spring and damper of a mass damper system for counterbalancing vibrations of the machine.
    Type: Application
    Filed: December 12, 2008
    Publication date: April 8, 2010
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventor: Gene Hawkins
  • MOUNTING GUARD RING
    Publication number: 20100084417
    Abstract: 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: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Applicant: Carl Freudenberg KG
    Inventors: Martin Heldmann, Gunter Hintenlang, Uwe Henrich
  • Axle boot
    Publication number: 20100084826
    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: Application
    Filed: November 6, 2009
    Publication date: April 8, 2010
    Applicant: Carl Freudenberg KG
    Inventors: Joachim Wolf, Andreas Kammann
  • Hydraulically Balanced Radial Seal
    Publication number: 20100084823
    Abstract: A hydraulically balanced radial seal is configured so that the hydraulic pressure of the fluid being sealed causes the primary dynamic sealing lip to be axially stretched longer and also incorporates a secondary static sealing lip whose beaded interior locks into a receiving groove in the exterior surface of the dynamic sealing lip and effects a seal between the two lips. The secondary static sealing lip being so disposed as to cause it to be compressed and shortened by the hydraulic pressure of the fluid being sealed an amount comparable to that which the primary dynamic sealing lip is being stretched under the same pressure, keeping the two lips locked together. This unique construction maintains the favorable hydraulic balance initially designed into the seal, enabling it to accommodate hydraulic pressures of over 225 psi.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 8, 2010
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventor: Robert P. LaPlante
  • Gasket For A Valve In An Internal Combustion Engine
    Publication number: 20100084821
    Abstract: 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: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Applicant: Corcos Industriale S.a.s. di Freudenberg & Cosso S.r.l.
    Inventor: Francesco Scarano
  • Overmolded support plate for fuel cell
    Patent number: 7687180
    Abstract: A fuel cell component is provided including a support plate, a membrane electrode assembly, and a resilient member. The support plate defines a bore extending between a first surface and a second surface. The membrane electrode assembly engages the second surface of the support plate. The resilient member defines a leg and a bead. The leg is disposed within the bore and adheres to the membrane electrode assembly. The bead engages the first surface of the support plate to maintain the membrane electrode assembly in engagement with the second surface of the support plate.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: March 30, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Steven Mac Haycock, Joseph John Heystek
  • FLAT MOP
    Publication number: 20100064466
    Abstract: A flat mop (1) comprising a mop plate (2) with a cleaning side (3), onto which a mop cover (4) can be stretched. The mop plate (2) has two mop plate parts (5, 6) arranged foldably with respect to one another. The mop plate (2) is trapezoidal in shape.
    Type: Application
    Filed: October 10, 2007
    Publication date: March 18, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Uwe Dingert, Torsten Gratzki, Jens Deerberg
  • Embossed non-woven fabric having a three-dimensional structure
    Patent number: 7678442
    Abstract: A three-dimensionally embossed non-woven fabric, which is comprised of fibers and/or filaments (3) oriented primarily in the moving direction (2) of the machine, and has zones (5, 7) with regularly alternating elevations (4a, 8a) and indentations (4b, 8b), which are separated from one another by non-embossed areas (6) that are continuous in the moving direction (2) of the machine. These non-embossed areas constitute a proportion ranging from 5% to 50% with regard to the entire surface of the non-woven fabric (1) and the elevations (4a, 8a), and indentations (4b, 8b), when viewed from the opposite side, form indentations or elevations respectively, whereby the surfaces (10a, 10b) delimited by the elevations give the non-woven fabric an apparent thickness ranging from 0.5 mm to 5.5 mm.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: March 16, 2010
    Assignee: Karl Freudenberg KG
    Inventors: William A. Casey, Claudio Suarez
  • Seal seat ring component with locking and venting features
    Patent number: 7673479
    Abstract: A seal assembly includes a ring component for coupling a seat component to a shaft. The ring component includes a first portion having an annular shape and configured to have a sealed engagement with the shaft. The ring component also includes a second portion having a flange extending radially outwardly therefrom. The ring component is configured to receive the seat component between the flange and the first portion and thus form a seal seat assembly. The flange is configured to mechanically lock the seat component relative to the ring component when the seal seat assembly is disposed on the shaft.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: March 9, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventor: John C. Dahlheimer
  • Flexible Filter With Continuously Extruded Profile Frame
    Publication number: 20100051530
    Abstract: A filter pack is formed of a pleated filter section and a channel that forms a frame. The filter section may be formed of a non-woven polymer material which has been pleated. The filter section may have edge banding along at least a portion of its periphery. The filter section may be retained in the frame by an adhesive. One or more filter sections may be combined to form a filter pack. The frame may be continuously formed from an extruded plastic which may be folded to provide a one, two, three or four part frame. The frame may be provided with living hinge and mechanical locking features. A foldable edge band may be provided to allow the joining of multiple filter sections into larger filter packs.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicant: Freudenberg Nonwovens, L.P.
    Inventors: Andreas Manz, Volker Haendler, Willie Yung, Russell Meredith
  • Fuel cell seal with integral bridge
    Patent number: 7670709
    Abstract: The invention is drawn to a gasket (34) for use in an individual fuel cell (20). The gasket (34) includes at lest one generally rigid bridge (44) or (46) that extends across the fluid flow channels in adjacent separator plates (38) and (40). The bridge (44) or (46) assures that the fluid flow channels are not blocked or restricted in the cell (20). Each bridge (44) or (46) may be integral with its corresponding gasket (34). The gasket (34) may be a multi-piece gasket with a carrier material having an elastrometric seal portion (74) secured to it.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 2, 2010
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Steve George Koch, Jeffrey Alan Smith
  • Wallpaper for use in an automobile and a method for making same
    Publication number: 20100038812
    Abstract: An automobile wallpaper, and an exterior surface finishing agent for the door trim, seats, and so on, of automobiles, as well as its manufacturing method. To manufacture such automobile wallpaper, a printing process is performed on the surface of a surface material which is currently being used, in order to render a three-dimensional effect to the surface, so as to achieve various luxurious appearances. The three-dimensional effect of the printing is maintained even during the molding process, and it also possesses excellent properties relative to sound absorbency, due to the three-dimensional effect of the surface.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 18, 2010
    Applicant: Carl Freudenberg KG
    Inventors: SungYong Ryu, YongWon Jin