Patents by Inventor Patrick Robert Williams

Patrick Robert Williams 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 sharpening microtome blades
    Patent number: 4092805
    Abstract: Apparatus for sharpening microtome blades comprises a frame and a horizontally sliding carriage reciprocated on the frame by a drive motor and chain drive. The frame carries a high speed motor and a low speed motor which can be selectively coupled to strops and the carriage has a clamp member to clamp a microtome blade for engagement by the strops.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: June 6, 1978
    Assignee: Temtool Pty., Ltd.
    Inventor: Patrick Robert Williams