Patents by Inventor Hans J. Lederman

Hans J. Lederman 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: 4631761
    Abstract: A patient transfer trolley of the type which is used to transfer patient from a hospital bed to another location such as an operating theatre or an ambulance or a treatment room.The invention is concerned with a type of trolley which is on wheels and has an endless belt driven by rollers for transferring the patient.The invention provides such a transfer trolley which operates with the minimum inconvenience to the patient and the minimum apparent motion as far as the patient is concerned.The trolley has one or more driven wheels (31) and is so arranged that as the endless belt (23) is moved to move the patient, the driven wheels (31) are rotated simultaneously so as to move the trolley at substantially the same speed as the endless belt is moving but in the opposite direction.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: December 30, 1986
    Assignee: Ganmill Limited
    Inventor: Hans J. Lederman