Patents by Inventor Homer Grafton Smith

Homer Grafton Smith 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).

  • Casing slotter
    Patent number: 4119151
    Abstract: A drill string mounted tool for cutting a pair of spaced, vertical slots in well tubular goods comprising a pair of knives adapted to be swung outwardly, scissors style, by a piston member, which is in turn operated by well fluid pressure from the surface. Slot cutting is accomplished by vertically reciprocating the drill string carrying the tool with the knives extended.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: October 10, 1978
    Assignee: Homco International, Inc.
    Inventor: Homer Grafton Smith