Patents by Inventor Joseph A. Schurger

Joseph A. Schurger 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).

  • Cylinder locking apparatus
    Patent number: 4088151
    Abstract: A cylinder locking apparatus primarily intended for use on counter-balanced lift trucks incorporating lift cylinders of the single-acting type, comprising a positive sealing poppet-type check valve which operates in the normal manner when the system is in the raise mode, but which in the lowering mode is operable by controlled pilot means triggered manually by the system's main control valve spool, thus permitting the load to be lowered by gravity.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: May 9, 1978
    Assignee: Borg-Warner Corporation
    Inventor: Joseph A. Schurger