Patents by Inventor Robert Allan Manbert

Robert Allan Manbert 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).

  • Hydraulic apparatus having an axially actuatable bypass valve
    Patent number: 8205641
    Abstract: A hydraulic apparatus includes a housing portion having two main conduits and a central conduit. Valves are supported in the housing portion. At least one valve is interposed between each main conduit and the central conduit. Each of the valves has a closed position for preventing a free flow of fluid between the central conduit and its associated main conduit and have an open position for enabling the free flow of fluid between the central conduit and its associated main conduit. The hydraulic apparatus also includes a bypass valve assembly having a plunger portion that extends into the central conduit. The plunger portion is movable in an axial direction for moving the valves from the closed position to the open position.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: June 26, 2012
    Assignee: Parker-Hannifin Corporation
    Inventors: Jason Scot Richardson, Robert Allan Manbert, Matthew Herman Simon
  • HYDRAULIC APPARATUS HAVING AN AXIALLY ACTUATABLE BYPASS VALVE
    Publication number: 20100043901
    Abstract: A hydraulic apparatus includes a housing portion having two main conduits and a central conduit. Valves are supported in the housing portion. At least one valve is interposed between each main conduit and the central conduit. Each of the valves has a closed position for preventing a free flow of fluid between the central conduit and its associated main conduit and have an open position for enabling the free flow of fluid between the central conduit and its associated main conduit. The hydraulic apparatus also includes a bypass valve assembly having a plunger portion that extends into the central conduit. The plunger portion is movable in an axial direction for moving the valves from the closed position to the open position.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 25, 2010
    Inventors: JASON SCOT RICHARDSON, Robert Allan Manbert, Matthew Herman Simon