Patents by Inventor John H. Vrzalik

John H. Vrzalik 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: 4175550
    Abstract: A bed for immobilized patients and method for adjusting such a bed comprising a motor-driven, oscillating patient support platform mounted for longitudinal rotation about axes spaced above the platform at a predetermined distance and having a counter balance keel extending below the platform for attachment of varying counter balance weights, and having a slip clutch set to slip when the counter balance weights do not balance with a patient's weight.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: November 27, 1979
    Inventors: James R. Leininger, John H. Vrzalik