F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/108
F16K 11/00 (2006.01) F16K 1/40 (2006.01) G05D 16/06 (2006.01)
Patent
CA 1081583
ABSTRACT A fluid control valve, especially intended as a pilot valve in pneumatic control systems, in which the controlled flow path is provided by the gaps between adjacent coils of a helical spring. The flow direction is from the outside to the inside of the spring; this allows the valve to seal against high pressures, since the spring will be helped to remain closed by the pressure forces acting thereon.
305502
Berrecloth Alan H. T.
Hayward Terence J.
Fetherstonhaugh & Co.
Hnl Instruments & Controls Limited
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