Patents by Inventor Richard D. Cornell

Richard D. Cornell 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).

  • Patent number: 5632237
    Abstract: A hydraulic lash element compensating assembly mounted in the valve end of a rocker arm or other valve actuating device. The hydraulic last compensating element compensates for any clearance in the engine valve train due to wear and due to thermal expansion. The element includes a self adjusting hydraulic assembly with a cylindrical outer housing having a spherical protrusion on the end facing the valve. A foot is retained by a retainer permanently fixed to the swivel foot and securely attaching the foot to the housing, but allowing angular and rotational movement of the swivel foot relative to the spherical protrusion on the housing. The retainer may be constructed from a thermoplastic material by injection molding or from sheet steel by stamping.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: May 27, 1997
    Assignee: Hy-Lift Division of SPX Corporation
    Inventors: Richard D. Cornell, Robert C. Roos
  • Patent number: 4009696
    Abstract: A hydraulic lash adjuster for use with an internal combustion engine having an overhead cam, includes a stationary body received within a cylinder head bore and a plunger reciprocal within the body. The plunger includes a central cavity defining an oil reservoir. A passage is formed through the lash adjuster body to place the oil reservoir in fluid communication with the lubrication system of the engine. A pair of metering lands are formed on the exterior of the lash adjuster body adjacent the oil inlet passage to reduce the pressure of the oil in the oil reservoir to prevent pump-up.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: March 1, 1977
    Assignee: Sealed Power Corporation
    Inventor: Richard D. Cornell