Patents by Inventor Raymond Paul Doherty

Raymond Paul Doherty 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).

  • Closure valve for a fluid container
    Patent number: 6446685
    Abstract: A closure valve for the filler neck of a vehicle fuel tank includes a plastic ball with a vapor impermeable plate attached to it to form part of its surface. The ball is held between a carrier on the inside and a seal carrier on the outside, the seal carrier being held against the ball by a screw cap, a spring washer and a vapor seal. When the valve is closed the plate, the seal carrier, the vapor seal and ring seals form a relatively impermeable barrier covering the end of the fuel filler pipe and preventing the escape of significant amounts of fuel vapor.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: September 10, 2002
    Assignees: Bayerische Motoren Werke Aktiengesellschaft, Rover Group Limited
    Inventors: Ottmar Stiegler, Raymond Paul Doherty
  • Closure valve for a fluid container
    Publication number: 20010040162
    Abstract: A closure valve for the filler neck of a vehicle fuel tank includes a plastic ball with a vapor impermeable plate attached to it to form part of its surface. The ball is held between a carrier on the inside and a seal carrier on the outside, the seal carrier being held against the ball by a screw cap, a spring washer and a vapor seal. When the valve is closed the plate, the seal carrier, the vapor seal and ring seals form a relatively impermeable barrier covering the end of the fuel filler pipe and preventing the escape of significant amounts of fuel vapor.
    Type: Application
    Filed: March 12, 2001
    Publication date: November 15, 2001
    Inventors: Ottmar Stiegler, Raymond Paul Doherty