Patents by Inventor Calvin C. Daughetee

Calvin C. Daughetee 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).

  • Pneumatic valve apparatus
    Patent number: 4017055
    Abstract: Disclosed is a pneumatic launch apparatus which employs separable telescoping tubes. The open ends of the tubes are provided with valves which automatically close upon separation of the tubes to trap operating gas in the tubes at the moment of separation.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: April 12, 1977
    Assignee: Vought Corporation
    Inventors: Calvin C. Daughetee, Sidney Z. Winski