Patents Assigned to PneuDraulics, Inc.
  • Pressure control valve
    Patent number: 5129419
    Abstract: A valve having a valve poppet which is positioned by the opposing forces of a spring and inlet fluid pressure, and a dashpot located out of the path of fluid flow through the valve for damping movement of the poppet during rapid changes in fluid pressure without obstructing flow through the valve. The disclosed valve is a hydraulic pressure relief valve having a valve seat which is movable to aid alignment of the poppet and seat.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: July 14, 1992
    Assignee: PneuDraulics, Inc.
    Inventor: Stephen J. Stapleton