Patents by Inventor Derek W. Foster

Derek W. Foster 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).

  • Control lever assembly
    Patent number: 5140865
    Abstract: A control lever assembly e.g.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: August 25, 1992
    Assignee: J. C. Bamford Excavators Limited
    Inventor: Derek W. Foster
  • Mounting a working implement
    Patent number: 4810162
    Abstract: A device for releasably mounting a working implement such as an excavating or loading bucket on a working arm, such as an excavating arm of a vehicle comprises a housing which is, in use, secured to the working arm, the housing having a latch which is movable between a free position and a latched position, the latch being engageable with a co-operating receiving part of the working implement and retaining the receiving part of the implement when moved to its latched position, to secure the implement relative to the housing.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: March 7, 1989
    Assignee: J. C. Bamford Excavators Limited
    Inventor: Derek W. Foster