Patents by Inventor William J. Mocha

William J. Mocha 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: 3991661
    Abstract: A three position fluid powered actuator including a cylinder having a first end, a second end and an intermediate plate, the first end and intermediate plate having coaxial openings therein, a piston reciprocally positioned within the cylinder between the second end and the intermediate plate, a piston rod affixed to the cylinder and sealably and slidably received in the opening in said first end. The piston rod has a reduced diameter portion between said cylinder first end and the intermediate plate. Positioned on the reduced diameter portion of the piston rod is a pair of spring followers each abutting against the shoulder formed at each end of the intermediate portion and between the followers is a compressed spring. When fluid pressure is applied to the cylinder to either side of the piston, the piston is moved, compressing the spring. When the fluid pressure is removed, the spring returns the piston to the intermediate position.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: November 16, 1976
    Assignee: Air Power Systems Company, Inc.
    Inventor: William J. Mocha