Patents by Inventor Denis Ronald William May

Denis Ronald William May 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).

  • Prosthetic foot with means for energy storage and release
    Patent number: 6007582
    Abstract: A prosthetic foot (10) comprising a movable heel mechanism (12), an energy storing device (14) acted on by to the movable heel mechanism (12) to store energy, and a control device (16) attached to the energy storage device (14) and to a release device which enables the stored energy to be released to provide a lift-off force in push-off.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 28, 1999
    Assignee: Ortho Europe Limited
    Inventor: Denis Ronald William May
  • Alignment device for artificial limbs
    Patent number: 3982278
    Abstract: The invention provides an alignment device for use between a tube socket and a weight-bearing element of an artificial limb in which a desired angular relationship set by jacking screws and maintained by a controlled degree of friction between concentric part-spherical surfaces is maintainable despite the unlocking of clamping screws applying force between the said surfaces.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: September 28, 1976
    Assignee: J. E. Hanger & Company Limited
    Inventor: Denis Ronald William May