Patents by Inventor Murray Vincent Wilson

Murray Vincent Wilson 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).

  • Apparatus for holding open a door or the like
    Patent number: 4053961
    Abstract: Apparatus for holding open a door or similar closure member for a limited period, which may be predetermined, whereupon the door is automatically released and is able to return to its closed position, includes suction means for attachment to the door and/or surface against which the door is to be held in face-to-face relationship. The period of time during which the suction means is active may be determined by means of an air leakage to the suction means, or by means of a spring acting against the suction means.
    Type: Grant
    Filed: February 5, 1976
    Date of Patent: October 18, 1977
    Inventors: Murray Vincent Wilson, Norman Henry Pearce