Patents by Inventor Philip Weatherall

Philip Weatherall 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).

  • Sliding gate valve
    Patent number: 4199085
    Abstract: A slide gate valve for use with a molten metal teeming vessel is provided with elongated resilient supports that may be in the form of leaf springs, or the like, and are operative to resiliently bias the slide plate of the valve against the head plate thereof. The resilient supports are releasably secured to the vessel by linkages that facilitate disassembly of the valve elements for servicing.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: April 22, 1980
    Assignee: USS Engineers & Consultants, Inc.
    Inventors: Norman H. Watts, Philip Weatherall, Robert D. Hind