DIFF Subgroup
F16K 31/163 the fluid acting on a piston
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Operating means; Releasing devices > actuated by fluid > with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member > the fluid acting on a piston
CPC:
Operating means; Releasing devices > actuated by fluid ( ; fluid-actuated check valves F16K15/00; fluid-actuated safety valves F16K17/00) > with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member (with float F16K31/18) > the fluid acting on a piston
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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