Patents by Inventor William E. Sargo

William E. Sargo 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: 5261796
    Abstract: An integrated in-line electric motor/hydraulic pump that includes a pump housing having a pair of end members mounted at opposed ends of the housing. An electric motor includes a rotor on a shaft journalled between the end members and a stator surrounding the rotor within the housing. A pump inlet opens into the interior of the housing. First and second vane pump cartridges are integrated into one of the end members. Each vane pump cartridge includes a rotor coupled to the shaft, and a plurality of vane carried by the rotor to engage a vane cam ring that surrounds the rotor, which defines at least one pumping cavity between the cam ring and the rotor. A vane pump inlet passage within the one end member extends between and operatively couples the housing interior to the pumping cavities of both the first and second vane pump cartridges for feeding fluid from the housing interior to both cartridges in parallel.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: November 16, 1993
    Assignee: Vickers, Incorporated
    Inventors: Albin J. Niemiec, James V. Bloomquist, William E. Sargo