Patents by Inventor Mark A. Canter

Mark A. Canter 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).

  • Rotating poppet valve system
    Patent number: 4597408
    Abstract: A poppet valve has a threaded end of its stem. A coiled valve spring is provided with a valve spring retainer having a central bore for the valve stem, a circular groove for the spring, and a first ball bearing race on the opposite face from the spring groove. A valve retainer has a threaded bore and a second ball bearing race. A set of ball bearings is disposed in the spring retainer race, the valve stem is inserted through the spring and spring retainer, and the valve retainer is threaded onto the valve stem engaging the ball bearings by the second race. The ball bearing assembly thus permits the valve to rotate with respect to the spring and spring retainer during operation. A lock nut is used to lock the assembly.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: July 1, 1986
    Inventor: Mark A. Canter