Valves and valve actuation – With means to increase head and seat contact pressure – Fluid pressure
Patent
1996-07-01
1998-01-27
Fox, John
Valves and valve actuation
With means to increase head and seat contact pressure
Fluid pressure
251193, 251328, F16K 312
Patent
active
057115095
ABSTRACT:
An isolation gate and frame assembly has a frame having a frame sealing surface extending around the frame and a fluid impervious gate having a gate sealing surface complementary to the frame sealing surface extending around the gate. One of the first and second sealing surfaces carries an inflatable seal. A mechanism is provided to locate the gate within the frame with the first sealing surface sealed against the second sealing surface.
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Eltec Inc.
Fox John
Lambert Anthony R.
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