Patents Assigned to Freudenberg
  • Patent number: 5733826
    Abstract: An insole for shoes is a three-dimensionally shaped laminate composed of two adhesive-free formed fabrics, the formed fabric on the foot side being thin and abrasion-resistant, and the thicker formed fabric forming the base material of the insole consisting of staple fibers, having a composition of 50-60% by weight of core/sheath-polyester/copolyester fibers with a melting range of the core component of 255.degree.-260.degree. C. and of the sheath component of 110.degree.-140.degree. C., 5-15% by weight of high-shrinkage polyester fibers, and 25-40% by weight of absorbent fibers. The base material has a mass per unit area of 800-1200 g/m.sup.2 with a thickness of 0.70-0.85 cm.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: March 31, 1998
    Assignee: Firma Carl Freudenberg
    Inventor: Dieter Groitzsch
  • Patent number: 5725927
    Abstract: A reusable cleaning cloth for damp and dry cleaning of surfaces. The cloth is made of a textile base layer of non-woven fibers and, on the surface that provides the cleaning action, a plurality of filament loops which project out of this surface. The filament loops are concentrated in spaced apart surface regions separate from one another, like islands, by non-linear border lines delineating channels that are essentially free of filament loops. In its finished form, the island-like areas with the filament loops project 0.5 to 5 mm out of the base surface. The islands are aligned to be equidirectionally staggered relative to one another, each having a length of 4 to 50 mm with a corresponding width of 2 to 10 mm. The channels which separate the islands are as broad as one to two of these islands in the region between the adjacent long sides of the islands and narrow in the region of the adjacent ends of the islands.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: March 10, 1998
    Assignee: Firma Carl Freudenberg
    Inventors: Jan-Peter Zilg, Heinrich Laun, Michel Passler
  • Patent number: 5713577
    Abstract: A sealing arrangement including a sealing ring with a support ring extending substantially in a radial direction. The support ring is joined in the radial direction to a first sealing element that lies in contact with and is nonrotatable with respect to a first machine element to form a static seal. The support ring is also joined in the radial direction to a second sealing element that is placed against a second machine element rotatably with respect to the second machine element to create a dynamic seal. The first and second sealing elements are each made of an elastomeric material, and at least one multipole ring that can move past a rotational speed sensor. The multipole ring is made of a pasty, hardenable, and magnetizable material that is arranged as a intermediate layer of film-like thinness on the side of the support ring facing the rotational speed sensor.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: February 3, 1998
    Assignee: Firma Carl Freudenberg
    Inventors: Berthold Lannert, Hans-Gerd Eckel, Horst Kober, Stefan Burger
  • Patent number: 5704110
    Abstract: A device for crimping a plastically deforming metal pole shoe (1) around the end (2) of a cable that has been inserted into it. The device comprises an anvil (3), a die (4), a sensor (5), and a comparator (6). The shoe is placed on the anvil and the die is advanced toward it, deforming the shoe. The sensor emits a signal once the shoe has been deformed to the maximum, and the comparator compares the signal with a reference and emits either an "accept" signal or a "reject" signal. The "reject" signal emitted by the comparator actuates a cable-end trimmer that cuts part-way or all the way through the cable. Consequently, the device will always either acceptably crimp pole shoes to the ends of cables or reliably indicate defective connections.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: January 6, 1998
    Assignee: Carl Freudenberg
    Inventors: Anton Erhard, Werner Haag
  • Patent number: 5704327
    Abstract: An intake pipe of an internal combustion engine is disclosed. The intake pipe has a dimensionally stable intake pipe body with a passthrough opening, and a positioning element arranged in the passthrough opening to change the area of flow cross section. The positioning element is constructed of a nonreturn valve opening only toward the internal combustion engine, the nonreturn valve comprising a sealing element and a sealing seat which can move relative to one another and which can be brought, as required, into engagement with one another to close off the passthrough opening.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: January 6, 1998
    Assignee: Firma Carl Freudenberg
    Inventor: Klaus Dohring
  • Patent number: 5695535
    Abstract: A pocket filter includes a front frame which accommodates at least two filter bags. The top of each bag accommodates a reinforcing frame. The bags are secured dust-tight to one another, to the reinforcing frames, and to the front frame. The front frame is a severed at at least one point along its perimeter. The front frame has a U-shaped channel around it that opens inward, and the reinforcing frames can be inserted into the channel when the front frame is open at the severed point. The reinforcing frames match each other and match the size of the front frame, creating a dust-tight contact between all the adjacent reinforcing frames and the inner surface of the channel when the front frame is closed at the severed point. Facing webs, disposed in the channel opening on each side of the "U", create a dust-tight contact with the reinforcing frame.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: December 9, 1997
    Assignee: Carl Freudenberg
    Inventors: Dieter Hintenlang, Dieter Unrath, Udo Michaelis, Margit Hofmann
  • Patent number: 5695176
    Abstract: A torsional vibration damper with an essentially cup-shaped hub ring made of metallic material, an annular casing and a rotating ring. The hub ring and annular casing and the rotating ring are spaced from one another by a radial clearance and are joined in a torsionally flexible manner by a spring element made of elastomeric material. The spring element is arranged in the opening formed by the clearance. The casing of the hub ring is provided at least radially externally with an adhering first coating made of thermosetting plastic, which coating may have a pulley-type of surface profiling. The first coating may be reinforced with fibers for dimensional stability, and the second coating may expand and contract with temperature variations to ensure constant prestressing in the spring element.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: December 9, 1997
    Assignee: Firma Carl Freudenberg
    Inventor: Terry Colford
  • Patent number: 5692369
    Abstract: A rotor disk for a spinning machine has a hub ring that includes a first carrier and a second carrier, with the hub ring being joined radially externally in a rotationally fixed manner to a thrust ring made of polymer material. The hub ring and the thrust ring are fastened together in a manner allowing them to be detached non-destructively. The first and the second carriers are constructed and are arranged in a mirror image.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: December 2, 1997
    Assignee: Firma Carl Freudenberg
    Inventor: Otmar Braun
  • Patent number: 5687959
    Abstract: A hydraulically damping rubber bearing comprising an inner supporting body surrounded with radial clearance by an outer supporting body. The inner and the outer supporting bodies are joined together by a resilient elastomeric element forming the boundary of a working chamber filled with damping fluid. The working chamber is separated from a compensating chamber by a separating wall having at least one duct-shaped opening and is connected to the compensating chamber in a manner such that it is in fluid communication with it. The compensating chamber is sealed on the side facing away from the separating wall by a compensating membrane. The separating wall has a centrally arranged opening which surrounds the inner supporting body with radial clearance, the annular gap formed by the clearance being designed as a damping duct. The separating wall also has at least one window filled in by a window membrane made of elastomeric material to isolate higher frequency vibrations.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: November 18, 1997
    Assignee: Firma Carl Freudenberg
    Inventor: Axel Rudolph
  • Patent number: 5682663
    Abstract: A covering (A) which is developed as closure for infusion bottles (3) or the like, having a cap (1) adapted to be flanged at its lower edge (11) onto the neck (2) of the bottle, the cap having a hole (9) in its top (8) for the formation of a puncture region, and in order to obtain a structural shape which is of simpler manufacture and more favorable for disposal, the hole (9) is closed by the foil section (16) of a supplementary cap (17) which, as a result of that fact that it extends to the lower edge (11) of the cap (1), can be flanged with the latter and is attached by adherence to the cap (1).
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Klaus Derksen
  • Patent number: 5679838
    Abstract: Monofunctional or multifunctional isocyanates having the general formulaR--(N.dbd.C.dbd.O).sub.xwhere R is any organic remainder, x.gtoreq.1,or compounds which form such isocyanates under the influence of temperature are used in elastomeric compounds to be vulcanized as inhibitors for amines.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: October 21, 1997
    Assignee: Firma Carl Freudenberg
    Inventors: Ernst-Moritz von Arndt, Gunter Stein
  • Patent number: 5676382
    Abstract: An improved seal assembly utilizing a cup gasket having a flange portion secured or sandwiched between side surface of a mating ring and an inner surface of a radially extending side portion of an inner sleeve such that a static seal occurs in an axial direction. The seal further including a gap between an inner circumferential surface of the mating ring and the outer circumferential surface of the inner sleeve to detect any leakage past the static seal. Such a seal assures a long-term sealed mounting of the mating ring regardless of elastomer compressions set, shrinkage, or thermal contraction.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 14, 1997
    Assignee: Freudenberg NOK General Partnership
    Inventor: John C. Dahlheimer
  • Patent number: 5666862
    Abstract: A torsional vibration damper for a shaft rotating about an axis. The damper comprises a hub element joined to the shaft, such that at least two inertial masses, pivotable in the peripheral direction about pivot axes, are retained on the hub element. At least one spring for each inertial mass is provided to determine the static position of the inertial masses. The pivot axes lie between the inertial masses and the axis of the shaft.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: September 16, 1997
    Assignee: Firma Carl Freudenberg
    Inventors: Hans-Gerd Eckel, Anja Kunkel, Michael Muller
  • Patent number: 5668426
    Abstract: A pulse generating wheel, combined with a radial shaft sealing ring, for a machine element that can rotate about an axis. The pulse generating wheel has a cylindrical sleeve that can be slid onto the machine element. The radial shaft sealing ring is provided with a sealing lip, made of polymer material, that is delimited on the side facing the atmosphere by a conical surface. In a first axial position of the cylindrical sleeve, the conical surface is contacted by the cylindrical sleeve and can be expanded in the radial direction. The cylindrical sleeve can be displaced out of the first axial position into a second axial position in which the sealing lip moves into direct contact with the machine element, and the cylindrical sleeve is at an axial distance from the conical surface.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: September 16, 1997
    Assignee: Firma Carl Freudenberg
    Inventors: Berthold Lamert, Wolfgang Schmitt, Hans-Gerd Eckel
  • Patent number: D385974
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger
  • Patent number: D385975
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger
  • Patent number: D385976
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger
  • Patent number: D385977
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger
  • Patent number: D385978
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger
  • Patent number: D385979
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: November 4, 1997
    Assignee: Carl Freudenberg
    Inventor: Gerhard Berger