Patents by Inventor Malcolm Kerwit

Malcolm Kerwit 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: 4038709
    Abstract: An improved dual hydraulic hospital bed having hydraulically actuated support means for controlling the movement of the bed frame. A dual mode hydraulic pump actuates the support means and controls the movement of additional hydraulic means to control the position of the bed frame and a support frame and thus the position of the upper body and legs of a patient. The dual mode hydraulic pump is driven by a foot petal or compressed air from a compressed air source, such as the compressed air wall outlets found in most hospital rooms. Preferably, the improved dual hydraulic hospital bed includes a bidirectional spring loaded cassette holder for positioning an X-ray cassette below any of the radiolucent panels affixed to the supporting frame to facilitate the taking of X-rays.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: August 2, 1977
    Assignee: Kerwit Medical Products, Inc.
    Inventor: Malcolm Kerwit