Fluid handling – Control by change of position or inertia of system – With second control
Patent
1997-11-05
2000-07-11
Michalsky, Gerald A.
Fluid handling
Control by change of position or inertia of system
With second control
137553, 251 65, 25112914, F16K 1736
Patent
active
060857722
ABSTRACT:
A seismic safety valve has a housing with a fluid inlet, a fluid outlet and a fluid passageway interconnecting the inlet and outlet. A recess is formed inside the housing along the fluid passageway, with a valve seat located adjacent to and below the recess. A valve member, made of a magnetic material, is in the fluid passageway and movable between a first position in the recess and a second position on the valve seat. The valve member closes the fluid passageway in the second position and opens the fluid passageway in the first position. The recess supports the valve member so that the valve member is movable from the recess upon the housing being subjected to a predetermined amount of seismic activity under forces generated by the predetermined amount of seismic activity and gravity. At least one electromagnet is on the housing outside of the fluid passageway. The electromagnet can be used to automatically activate the valve by moving the valve member, or may be used to reset the valve after the valve has been activated.
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Sentinel Valves brochure (undated).
Arduini Douglas P.
McGill James C.
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