Patents by Inventor Joel Lee Willetts

Joel Lee Willetts 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).

  • Hydraulic actuated vapor recovery valve
    Publication number: 20040007683
    Abstract: A hydraulic vapor recovery valve comprising a valve body, a top head assembly, and means for demountably attaching the a top head assembly to the valve body. The top head assembly can be removed from the valve body assembly without requiring substantial rotation of the top head assembly which enables the valve to be easily be removed for cleaning without requiring removal of any attached hydraulic lines.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 15, 2004
    Applicant: Betts Industries, Inc.
    Inventor: Joel Lee Willetts
  • Emergency shut-off device for cam-over valve
    Patent number: 6105597
    Abstract: A device works as an emergency shut off for a valve having an open and a closed position with a lever for manually moving the valve from one of the positions to the other.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: August 22, 2000
    Assignee: Betts Industries, Inc.
    Inventor: Joel Lee Willetts