Patents by Inventor Lester R. Sunday

Lester R. Sunday 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).

  • Apparatus for machining a valve's seat
    Patent number: 4678379
    Abstract: Apparatus for machining a stop valve seat ring while the valve remains piped to a turbine comprises a pair of spiders with adjustable arms which fit within the valve and a shaft rotatably supported by the spiders and driven through a gear train by a motor attached to one of the spiders, the shaft having a tool support which holds and is capable of moving a single edge cutting tool axially to machine the seat ring.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: July 7, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: Lester R. Sunday
  • Bottle boring apparatus
    Patent number: 4023451
    Abstract: Apparatus for enlarging a portion of a bore of a rotor includes a rotor support and drive and a boring bar with controlled fly cutters, which operate in unison with an indicator that follows a template shaped to correspond to the desired shape of the enlargement.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: May 17, 1977
    Assignee: Westinghouse Electric Corporation
    Inventors: Robert C. Acton, Lester R. Sunday