Patents by Inventor Gerhard Temmink

Gerhard Temmink 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).

  • Collapsible wheelchair
    Patent number: 5727809
    Abstract: A collapsible wheelchair having a frame including a first side frame, a second side frame, coupling means holding the two side frames at least on the operative situation in the same positions at a mutual distance, wheel arranged on the frame, a seat and a back.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: March 17, 1998
    Inventors: Hendrik Jan Ordelman, Gerhard Temmink, Herman Willem Hendrik Stokkers, Harm Hendrik Braam
  • Auxiliary frame for a wheelchair and wheelchair for use with an auxiliary frame
    Patent number: 5501480
    Abstract: An auxiliary frame for a wheelchair, the auxiliary frame having a coupling assembly for coupling the auxiliary frame to the wheelchair, at least one steerable wheel and a drive assembly. The coupling assembly is formed by a central elongate body provided with a bearing for co-action with the frame of the wheelchair and a clamping bracket pivotally connected to the elongate body and co-acting with the bearing. A stationary hook-like member is connected to the elongate body.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: March 26, 1996
    Inventors: Hendrik J. Ordelman, Gerhard Temmink, Herman W. H. Stokkers, Harm Braam