Patents by Inventor Hans-Henning Zutz

Hans-Henning Zutz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8317942
    Abstract: A cast iron material, particularly a ledeburitic cast iron material with a carbide content of at least 15 wt. % and a characteristic free, evenly distributed graphite formation is disclosed. In this case, the evenly distributed graphite formation may comprise graphite flakes and/or vermicular graphite and/or nodular graphite. Depending on the respective application (diameter (D) of the running gear seal, peripheral speed), the basic matrix may be realized in pearlitic and/or bainitic and/or martensitic form. Due to the high graphite content, the material has a thermal conductivity that is three to four times greater than that of white cast iron materials, wherein this provides the advantage that no scoring of the running gear seals occurs at high peripheral speeds (>5 m/s) and large diametrical dimensions of the seals (D >600 mm). In addition, the high carbide content of at least 15 wt.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 27, 2012
    Assignee: Federal-Mogul Friedberg GmbH
    Inventors: Laszlo Pelsoeczy, Wilfried Langner, Hans-Henning Zutz, Thomas Gerle, Franz-J. Goebbeis
  • Publication number: 20110094632
    Abstract: Disclosed is a cast iron material, especially a ledeburite cast iron material which has a high carbide content of at least 15.0 percent by weight and is provided with a characteristic, free, evenly distributed graphite embodiment that can comprise flake graphite and/or vermicular graphite and/or nodular graphite. The basic matrix can be embodied in a pearlitic and/or bainitic and/or martensitic manner according to the application thereof (diameter (D) of the seal of the running gear, peripheral velocity). The thermal conductivity of the inventive material is three to four times greater than that of white cast materials as a result of the high graphite content, thus advantageously preventing seals of running gears from fretting in case of great peripheral velocities (>5 m/s) and large diameters (D>600 mm) of the seals.
    Type: Application
    Filed: February 8, 2006
    Publication date: April 28, 2011
    Inventors: Laszlo Pelsoeczy, Wilfried Langner, Hans-Henning Zutz, Thomas Gerle, Franz-J Goebbeis
  • Publication number: 20090066032
    Abstract: Device for sealing components which rotate at relatively high speeds, in particular construction machine axles, comprising a sliding ring seal which is formed from a sliding ring and a mating ring, in particular a running gear seal, wherein the sliding and mating rings have a sliding face which faces a rotating component, one of the rings is provided in the installed state on one side within a ring receptacle and on the other side in the region of the rotating component in a manner which is fixed in terms of rotation, and the other ring is arranged in a sealed form with respect to a surrounding stationary component.
    Type: Application
    Filed: January 18, 2007
    Publication date: March 12, 2009
    Inventor: Hans-Henning Zutz
  • Publication number: 20060022413
    Abstract: Slide ring packing, especially running gear packing, comprising a countering and a slide ring, each with a gripping surface to receive an elastomer elastic body, a housing for the countering and slide ring with a counter gripping surface for the elastic body, whereby the housing lie inside one another, and are joined to form an installation unit and an anti-rotation element is provided in the area of the countering and the slide ring.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventor: Hans-Henning Zutz
  • Patent number: 6921078
    Abstract: Slit ring seal, especially running gear seal, consisting of an angle-shaped slip and/or opposing ring with a circumferential surface designed to accent a ring-shaped, approximately cross-sectional plate-spring shaped sealing body, where the sealing body, as needed, includes a secondary seal directed toward the area of the sealing shaft of the slip, and/or opposing ring, and supports itself with segment areas of its outer circumferential surface on corresponding surface areas of an installation bore, where a ring-shaped securing element is provided radially between the outer circumferential surface of the slip and/or opposing ring and the installation bore, contacting the sealing body in the installed condition.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: July 26, 2005
    Assignee: Federal-Mogul Friedberg, GmbH
    Inventor: Hans-Henning Zutz
  • Publication number: 20040201175
    Abstract: A drive seal includes at least one metal ring having an annular running surface onto which is applied a thermally sprayed hard metal protective wear coating. The hard metal wear coating is coated by a sliding lacquer layer containing solid lubricants and which is softer compared to the hard metal wear layer.
    Type: Application
    Filed: January 9, 2004
    Publication date: October 14, 2004
    Inventors: Michael Buchmann, Hans-Henning Zutz, Peter Wittka
  • Publication number: 20040113371
    Abstract: Slip ring seal, especially running gear seal, consisting of an angle-shaped slip and/or opposing ring with a circumferential surface designed to accept a ring-shaped, approximately cross-sectional plate-spring, shaped sealing body, where the sealing body, as needed, includes a secondary seal directed toward the area of the sealing shaft of the slip and/or opposing ring, and supports itself with segment areas of its outer circumferential surface on corresponding surface areas of an installation bore, where a ring-shaped securing element is provided radially between the outer circumferential surface of the slip and/or opposing ring and the installation bore, contacting the sealing body in the installed condition.
    Type: Application
    Filed: August 18, 2003
    Publication date: June 17, 2004
    Inventor: Hans-Henning Zutz
  • Patent number: 6550778
    Abstract: An axial face seal has a sliding ring and/or a counter-ring for use with an elastic roll body. The ring has a seal leg having a sliding surface, and a supporting portion with a conical circumferential surface outside of the sliding surface for accommodating the elastic roll body. The seal leg also has an extended region that extends past the supporting portion. A reinforcement for the extended region is located between the extended region and the supporting portion.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: April 22, 2003
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Hans-Henning Zutz
  • Patent number: 6494459
    Abstract: An axial face seal, in particular a running gear seal, consists of an angular sliding ring and/or counter-ring with a circumferential surface for accommodating a ring-shaped sealing member with approximately plate-shaped cross section. The sealing member contains a secondary seal guided in the area of the sealing leg, wherein the sealing leg of the sliding ring and/or counter-ring is provided on the ring backside with an axial projection extending in the direction of the sealing member. The secondary seal in the non-assembled state is positioned at a radial distance to the sealing leg or the projection and has at least in part a larger diameter than the sealing member. At least the free end of the secondary seal can be positioned with radial compression on the sealing leg or the projection with the aid of a component that accommodates the sealing member.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 17, 2002
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Hans-Henning Zutz
  • Publication number: 20020105147
    Abstract: A slide ring seal assembly includes a slide ring having an axially extending annular leg. The leg has radially outer and radially inner circumferential surfaces and a free axial end. A plurality of circumferentially spaced recesses are provided in leg at the free axial end thereof. Each recess extends from the radially outer surface to the radially inner surface. An annular sealing body surrounds the leg and is seated thereon. Circumferentially spaced, radially inward-oriented extensions forming part of the annular sealing body and projecting into respective recesses are provided in the leg for effecting a form-locking connection between the slide ring and the annular sealing body.
    Type: Application
    Filed: January 23, 2002
    Publication date: August 8, 2002
    Inventor: Hans-Henning Zutz
  • Patent number: 6053506
    Abstract: A slide ring seal assembly includes a slide ring having a radial slide face and a circumferential conical surface; a support ring, made of an elastic material, surrounding the slide ring and having a circumferential conical surface; an annular elastic rolling body disposed between the slide ring and the support ring and being in engagement with the circumferential conical surfaces thereof; and an annular reinforcing body embedded in the support ring and having a plurality of radially, axially and circumferentially extending channels distributed over the circumference of the reinforcing body.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: April 25, 2000
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz
  • Patent number: 5851014
    Abstract: In a slide ring seal assembly having slide rings comprised of a casting material for running gears of track-laying vehicles and construction machinery, the improvement being slide rings composed of a gray cast iron alloy having a pearlitic matrix structure having lamellar separation of graphite therein, having a hardness value of at least 110 HRB, and being composed of:2.99 weight percent of carbon;4.61 weight percent of silicon;0.77 weight percent of manganese;0.53 weight percent of phosphorus;0.039 weight percent of sulfur;1.7 weight percent of chromium;0.81 weight percent of vanadium;1.86 weight percent of copper; andiron as remainder.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: December 22, 1998
    Assignee: A E Goetze GmbH
    Inventors: Erwin Germann, Lothar Neureuter, Hans-Henning Zutz, Hans-Jurgen Veutgen
  • Patent number: 5762343
    Abstract: A slide ring seal assembly includes a slide ring member and a counterring member adjoining the slide ring member in axial alignment therewith. A force-exerting arrangement which axially resiliently presses the two ring members to one another includes a first resilient sealing ring being coaxial with and engaging one of the ring members; and a second resilient sealing ring being coaxial with and engaging the other of the ring members. The first and second sealing rings are in a radial alignment with one another and are stressed by clamping arrangements, so that the sealing rings exert axial forces on the two ring members, pressing them together. At least the first sealing ring and the first clamping arrangement are so designed that the axial restoring force generated by virtue of the deformation of the first sealing ring seeks to reduce the axial dimension of the resiliently deformed first sealing ring. Such an axial restoring force constitutes the axial pressing force exerted by the first sealing ring.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: June 9, 1998
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz
  • Patent number: 5673921
    Abstract: A slide ring unit includes a slide ring having first and second opposite axial ends. The slide ring further has a sealing face at the first axial end and a conical circumferential surface for supporting an elastic rolling body thereon. The circumferential surface tapers from the sealing face toward the second axial end. The slide ring unit further has a stop for axially retaining the rolling body on the circumferential surface of the slide ring. The stop forms a component separate from the slide ring and adjoins the slide ring at the second axial end thereof. The stop has an outer circumferential surface terminating at and flush with the conical circumferential surface of the slide ring at the second axial end thereof. Further, a securing arrangement is provided for attaching the stop to the slide ring.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: October 7, 1997
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz
  • Patent number: 5642890
    Abstract: A slide ring seal assembly includes a slide ring having a slide face for engaging a slide face of an additional slide ring and a plastic part having a conical face. An annular elastic body surrounds and engages the conical face and is adapted to be compressed, in an installed state, by the conical face and a face of a machine component. An annular sealing body is formed on the plastic part as a one-piece, integral member therewith for sealingly contacting a machine component in the installed state.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: July 1, 1997
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz
  • Patent number: 5560621
    Abstract: A slide ring seal assembly includes first and second machine components each having an annular clamping face coaxial with the rotary axis of the assembly; and first and second slide rings including respective inner and outer peripheral clamping faces each surrounding the assembly axis. The slide rings together define an annular sliding surface surrounding the assembly axis. First and second elastic sealing rings are compressed between the respective clamping faces of the machine components and the slide rings. The first sealing ring and the clamping face of the first machine component together define a first sealing area and the second sealing ring and the clamping face of the second slide ring together define a second sealing area. Each sealing area is bordered by a boundary line distal from the annular sliding surface and by a boundary line proximal to the annular sliding surface.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: October 1, 1996
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz