Patents by Inventor Cyril J. D. Webster

Cyril J. D. Webster 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).

  • Urinals
    Patent number: 4244061
    Abstract: A urinal arrangement for flushless hygienic operation has a sealing trap with a bend portion having a bore of not more than 25 mm. The bore size produces "plug flow" through the trap so that liquid retained in the trap as a seal is displaced in use by new liquid without significant mixing of new and displaced liquid. The small bore reduces the exposed surface area of the retained liquid forming the seal.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: January 13, 1981
    Assignee: National Research Development Corporation
    Inventors: Cyril J. D. Webster, John C. Griggs