Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Reexamination Certificate
2004-10-26
2008-03-18
Hepperle, Stephen M. (Department: 3753)
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
C137S495000
Reexamination Certificate
active
07343929
ABSTRACT:
An adjustable pressure control valve includes a body having an inlet port and an outlet port and a handle assembly having a threaded portion and an adjustment knob. A seat assembly disposed within the body includes a seat holder in communication with the outlet port that is received on the threaded portion of the handle assembly, wherein the seat holder is translatable in first and second directions when the handle assembly is rotated in first and second directions. The seat assembly also includes a valve seat fluidly affixed to the seat holder, wherein fluid can pass through the valve seat and the seat holder. The valve includes a pin biased by a pin spring that is engageable with the valve seat, and a main spring engageable with the pin to urge the pin against the valve seat to accommodate the pressure and volume of the fluid in the valve.
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A&H Enterprises, Inc.
Christensen O'Connor Johnson & Kindness PLLC
Hepperle Stephen M.
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