Patents by Inventor Michael Knopf

Michael Knopf 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).

  • Publication number: 20040155429
    Abstract: An improved adjustable wheel mounting assembly comprises a connecting member and a wheel-mounting member. The connecting member extends generally upwardly and downwardly between wheelchair frame members and is adapted to be secured thereto. The wheel-mounting member extends adjacent the connecting member and is secured thereto and to the side frame members. The wheel-mounting member has at least one formation for supporting an axle of the wheel.
    Type: Application
    Filed: September 24, 2003
    Publication date: August 12, 2004
    Inventors: Michael Knopf, Adam John Williams
  • Publication number: 20040003482
    Abstract: An improved wheel assembly comprises a caster fork, a caster wheel rotatably supported by the caster fork, and a caster swivel post defining an axis about which the caster fork rotates. The caster swivel post is being adapted to rotate about a pivot axis within a cylindrical housing. Alternatively, the wheel assembly has an adjustable axle for varying the camber angle of a wheel. The wheel assembly comprises a housing and an axle supported by the housing. The axle in turn rotatably supports a wheel. The axle is adapted to rotate about a pivot axis within a cylindrical housing.
    Type: Application
    Filed: June 4, 2003
    Publication date: January 8, 2004
    Inventors: Philip Schreiber, Steven L. Lindquist, Brandon McKee, Allen B. Killebrew, Rex W. Stevens, Ralf Groene, Michael Knopf
  • Patent number: D334515
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: April 6, 1993
    Inventors: Dean L. Libra, Michael A. Knopf