F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
121/69
F15B 21/02 (2006.01) F15C 3/04 (2006.01)
Patent
CA 1047852
Abstract of the disclosure A pneumatic logic unit consisting of a stacked assemblage of mated parts which define: (1) a pair of internal chambers separated by a flexible diaphragm shiftable by the chamber fluid pressures into either of two limit positions where the diaphragm alternatively opens one or the other of a pair of valves controlling the flow of fluid through respective input output conduits, and (2) a set of passageways for conducting fluid pressure control signals to those internal chambers to control the opening- and-closing of the two valves.
244907
Prescott Robert C.
Williams George F.
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