Patents by Inventor John J. McCafferty

John J. McCafferty 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).

  • Valve assembly for pipeline
    Patent number: 4736771
    Abstract: A valve assembly for a pipeline has a rotatable sleeve within a chamber which houses obturator means such as a check valve assembly. The chamber and sleeve have through passages which can be brought into and out of register by rotating the sleeve. Thus the chamber can be isolated from the pipeline, and the obturator can be serviced and/or removed and replaced.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: April 12, 1988
    Assignee: Forsac Valves Limited
    Inventor: John J. McCafferty
  • Ball valve for pipeline
    Patent number: 4606368
    Abstract: A ball valve assembly comprising: a body providing a socket and flow ports communicating therewith; and a core unit comprising a core assembly adapted to be releasably inserted into said socket, the core assembly having a through passage arranged to communicate with said flow ports, and a rotatable ball member within the core assembly, said member having a through passage such that rotation moves it into and out of communication with the passage in the core assembly.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: August 19, 1986
    Assignee: Forsac Valves Limited
    Inventor: John J. McCafferty