Patents by Inventor Beldon R. Rich

Beldon R. Rich 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).

  • Cushioning means for hydraulic cylinder
    Patent number: 3964370
    Abstract: Cushioning means for cushioning the end portion of the stroke of a piston in a cylinder comprising a stepped cylindrical member which enters a cylinder head bore to form therewith an annular orifice which successively decreases in area and increases in length thus to decrease piston velocity at substantially uniform rate and, hence, at substantially constant deceleration with substantially constant pressure drop across the annular orifice.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: June 22, 1976
    Assignee: Parker-Hannifin Corporation
    Inventor: Beldon R. Rich
  • Fluid motor and combination bumper and sealing ring therefor
    Patent number: 3961564
    Abstract: A fluid motor and a combination bumper and sealing ring therefor in which the ring is of rubber-like material with a sealing portion to seal the joint between the cylinder and an end cap and with a bumper portion to cushion the piston at the end of its stroke. The sealing portion is axially spaced from portions of the end cap and there is a recess between the sealing portion and bumper portion to prevent the sealing portion from being deformed when the bumper portion is deformed by contact with the piston.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: June 8, 1976
    Assignee: Parker-Hannifin Corporation
    Inventors: Beldon R. Rich, Richard J. Gallagher, John F. Berninger