Patents by Inventor Beldon Lee Rich

Beldon Lee 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: 4064788
    Abstract: Cushioning means for cushioning the end portion of the stroke of a piston in a cylinder comprising a stepped cushioning member or spear which enters a cylinder head bore to form therewith an annular orifice which successively decreases in area and gradually increases in radial width from one step to the next 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 29, 1976
    Date of Patent: December 27, 1977
    Assignee: Parker-Hannifin Corporation
    Inventors: Beldon Lee Rich, Zdenek J. Lansky