Patents Assigned to Brooks Instrument, LLP
  • Valve assembly
    Patent number: 8100382
    Abstract: A flow control valve includes an inlet and an outlet through which fluid enters and exits the valve. A valve plunger has a guide spring attached thereto, such that the guide spring is situated between the plunger and a valve orifice. The plunger, and thus the guide spring, is movable relative to the orifice to control fluid flow through the valve. The guide spring and the orifice surface adjacent the guide spring define coplanar surfaces that seal against each other when the valve is closed.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: January 24, 2012
    Assignee: Brooks Instrument, LLP
    Inventors: Walter Dennis Robertson, III, Thomas John McNichols, Stephen R. Kramer