Patents by Inventor Raymond E. Knoche

Raymond E. Knoche 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: 4350227
    Abstract: This brake assembly can be readily adapted for use with a conventional wheelchair. It provides a hand brake assembly adjacent each side frame including first and second links pivoted to the side frame and a third link connected between said first and second link. An arm rest is pivotally connected to the upper portion of each side frame and is connected at its front end by a link assembly to the hand brake assembly so that downward movement of the front of the arm rest actuates the hand brake assembly into engagement with the wheel.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: September 21, 1982
    Assignee: Bohn & Dawson
    Inventor: Raymond E. Knoche
  • Patent number: 4320818
    Abstract: This brake assembly, for use with a conventional foldable wheelchair, provides a pair of rearwardly extending brake arms connected to adjacent side frames underneath the seat. Each brake arm includes a transverse forward portion pivoted to the side frame and having a brake shoe biased into engagement with a drive wheel. The rearward portion of each brake arm is provided with a post engageable by the wheelchair seat to pivot the brake shoe out of engagement with the wheel when the seat is depressed and moved downwardly by the weight of an occupant. The wheelchair side frames are connected by a tension spring to ensure that the brake is engaged when the wheelchair is unoccupied.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: March 23, 1982
    Assignee: Bohn & Dawson
    Inventor: Raymond E. Knoche