DIFF Subgroup
F16K 17/10 with auxiliary valve for fluid operation of the main valve
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Safety valves; Equalising valves > opening on surplus pressure on one side; closing on insufficient pressure on one side > spring-loaded > with auxiliary valve for fluid operation of the main valve
CPC:
Safety valves; Equalising valves, > opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F16K15/00) > spring-loaded > with auxiliary valve for fluid operation of the main valve
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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