Patents by Inventor Shigenori Tamra

Shigenori Tamra 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).

  • Fuel dispensing nozzle with automatic shut-off valve
    Patent number: 4593729
    Abstract: A slide rack is pivotally supported at one end thereof on a plunger coaxially with an operating lever. On the other hand, a trigger which is urged in a direction away from the slide rack by a release spring has one end thereof pivotally supported on an intermediate portion of the operating lever, and the other end of the trigger is releasably engageable with a rack portion of the slide rack.For automatic shut-off fuel supply, the operating lever is pulled up and the fore end of the trigger is held in a rack portion of the slide rack to maintain a valve open position. As soon as a fuel tank is filled, the plunger is slided downward, whereupon one end of the slide rack is shifted downward with the other end slided along a lever guard. By this sliding movement, the trigger is released from the rack portion of the slide rack to return the operating lever automatically into a valve closing position.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: June 10, 1986
    Inventor: Shigenori Tamra