Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Patent
1993-03-23
1994-11-29
Rivell, John
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
137549, 137571, 137587, 220581, 220901, 141114, F16K 3112, B65B 312, B65D 3302
Patent
active
053680677
ABSTRACT:
A system for recovering and recycling gases is disclosed having, in one aspect, inlet and outlet flow lines and controllers with an inflatable enclosure which, in one aspect, has a series of one or more inflatable rib stiffeners which, in one aspect, are inflatable by the gas to be stored. In one aspect the system does not present gas at an undesirable back pressure to the gas source. In one aspect a filtering relief valve is employed which prevents environmental airborne contamination from flowing back into the system when the relief valve is closing. In one aspect the system is for storing and re-using helium.
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Barr Hardie R.
Fein Edward K.
Miller Guy M.
Rivell John
The United States of America as represented by the Administrator
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