Patents by Inventor Lewis P. Tomer

Lewis P. Tomer 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: 4716929
    Abstract: A pressure compensated flow control valve (10) embodying the concepts of the present invention is particularly suited for use as a component within the hydraulic system of a fork lift truck (11) in order to permit an unrestricted flow of fluid therethrough to raise the forks (18), either with or without a load (19), and to control the flow of fluid therethrough in order to govern the speed at which the forks (18) lower a load (19). During the lowering of the load (19) the valve (10) is properly responsive to actual, apparent and/or transient loading changes. The valve (10) employs a spool (95) slidable within a cavity (75). The spool (95) has a piston portion (96), and a sleeve (135) is slidably mounted on the skirt (125) of the piston (96).
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: January 5, 1988
    Assignee: B. W. Rogers Company
    Inventor: Lewis P. Tomer