Patents by Inventor Hans-Gunther Paul

Hans-Gunther Paul 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).

  • COPPER-FREE FRICTION MATERIAL FOR BRAKE PADS
    Publication number: 20130037360
    Abstract: A substantially copper-free friction material for a brake pad includes a binder forming approximately 8-18% by volume, a fiber forming 5-14% by volume, at least one lubricant forming up to 6% by volume, at least one abrasive forming 10-27% by volume, at least one carbon content component forming 36-51% by volume, and at least one filler forming 6-21% by volume. The friction material can be applied to the backing plate of a brake pad.
    Type: Application
    Filed: April 20, 2010
    Publication date: February 14, 2013
    Inventors: Hao Chen, Hans-Gunther Paul
  • Asbestos-free friction material
    Patent number: 4384054
    Abstract: An asbestos-free friction material useful for brake linings, clutches, etc. comprising 5 to 25% by weight of a hardenable binder or binder mixture, a reinforcing fibrous material and conventional fillers, abrasives and lubricants the said reinforcing material consisting essentially of 1 to 50% by weight of diabase fibers with an average fiber length of 100 to 750 .mu.m and 1 to 44% by weight of metal fibers, metal wool or metal in the form of chips, powder or lamella, especially steel.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: May 17, 1983
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Klaus Moraw, Hans-Gunther Paul
  • Asbestos-free friction material
    Patent number: 4373038
    Abstract: An asbestos-free friction material useful for brake linings, clutches, etc. comprising 5 to 25% by weight of a hardenable binder or binder mixture, 1 to 70% by weight of a reinforcing fibrous material and conventional additives, the said reinforcing material consisting essentially of 2.5 to 12% by weight of aramide fibers, 6 to 25% by weight of mineral fibers and 16 to 36% by weight of steel fibers and optionally 5 to 20% by weight of powdered mica.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: February 8, 1983
    Assignee: Rutgerswerke Aktiengesellschaft
    Inventors: Klaus Moraw, Hans-Gunther Paul