Patents by Inventor Thomas Benjamin Green

Thomas Benjamin Green 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).

  • Mold vents
    Patent number: 5939101
    Abstract: A vent for a mold having a mold cavity comprising a vent main body, a valve closure member having an upper end face for positioning at the surface of the mold cavity, the valve closure member being moveable with respect to the vent main body for opening and closing the vent, a spring opening mechanism formed integrally with the vent main body for opening the vent, and a valve seat between the valve closure member and the main body wherein the vent is closed by material in the mold cavity contacting the upper end face of the valve closure member.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: August 17, 1999
    Assignee: Dunlop Tyres Ltd.
    Inventor: Thomas Benjamin Green
  • Mold vents
    Patent number: 5922237
    Abstract: A vent for a mold comprising a valve closure member and integrally formed spring opening mechanism for opening the valve closure member such that when mounted in an air release vent the valve closure member may open or close said vent.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: July 13, 1999
    Assignee: Dunlop Tyres Ltd.
    Inventor: Thomas Benjamin Green