Patents by Inventor Conrad Deucher

Conrad Deucher 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).

  • Erecting seat structure to assist invalids from seated to standing, upright position, particularly erecting wheelchairs
    Patent number: 4076304
    Abstract: To provide for smooth simple operation of an erecting seat, a motor, through a reduction gearing, drives a shaft located transverse of the seat structure, or wheelchair, to the end points of which a crank drive is attached coupled to the seat, the crank drive being arranged to provide, upon erecting or lowering movement of the seat a nonlinear time-displacement function which is effectively sinusoidal, so that movement of the seat between the end positions starts slowly, then is accelerated, and then again slowly reaches the end position. Erecting movement can be assisted by springs, preferably located at either side of the seat.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: February 28, 1978
    Assignee: Valutec AG
    Inventor: Conrad Deucher