Patents by Inventor Geoffrey A. Ward

Geoffrey A. Ward 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: 4408192
    Abstract: A method and device for use by disabled persons in communicating includes sensors (1) for producing first, second, and third time indeterminate electrical signals responsive to different voluntary muscle movements of the disabled person. Three different muscles, each with a single state or one muscle with three different states may be used. The signals form a code indicative of communicating indicia. A microcomputer (3), connected to a visual display, translates the sensor signals into an output signal that produces visually perceptible communicating indicia on the display (5).
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: October 4, 1983
    Inventors: Geoffrey A. Ward, Kevin E. Forward
  • Patent number: 4318421
    Abstract: A float controlled valve syphons water out of a swimming pool cover. The syphon valve includes co-operable male and female valve members disposed for mutually relative movement to bring them into and out of mutual engagement to thereby close and open flow communication through a syphon discharge passage formed in the male member. A float body is coupled to one of the said members for effecting the engagement and disengagement in response to the level of the water in the swimming pool cover. The male valve member is tapered at the forward end to facilitate engagement with a central recess in the female member. The female member is formed of more yielding material than the male member and has a thin walled portion receiving the male member and of sufficient flexibility to envelop dirt particles at the male-female member seal.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 9, 1982
    Inventor: Geoffrey A. Ward