Patents by Inventor Rollin John McCrory

Rollin John McCrory 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).

  • Leak detection system and method
    Patent number: 3940020
    Abstract: A leak detection system and method of detecting leaks are disclosed for detecting leaks in a dispensing system having a pump, dispenser, conduit connecting the pump and dispenser and a valve to isolate the pump from the dispenser when a fluid is not being dispensed. The leak detection system includes a leak detector including an enclosure in fluid flow communication with the portion of the conduit downstream from the valve, a member responsive to the fluid condition within the enclosure and signal means responsive to the fluid condition responsive member for indicating the existence of a predetermined fluid condition.A valve seating means which is pressure activated to forceably seat the valve also is provided.
    Type: Grant
    Filed: August 23, 1973
    Date of Patent: February 24, 1976
    Assignee: Gilbert & Baker Manufacturing Company
    Inventors: Rollin John McCrory, George Dennis Robinson, Jr.