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DIFF Main Group
F15C 3/00

Circuit elements having moving parts (valves, construction of valves F16K)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Circuit elements having moving parts

CPC: Circuit elements having moving parts (valves, construction of valves F16K)

Full Title

Full titles differ between systems:

IPC:

Circuit elements having moving parts

CPC:

Circuit elements having moving parts (valves, construction of valves F16K)

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F15C 3/002 CPC only CPC only
  • F15C 3/005 CPC only CPC only
  • F15C 3/007 CPC only CPC only
  • F15C 3/02 using spool valves IPC+CPC Available in IPC and CPC
  • F15C 3/04 using diaphragms (; connection of valves to inflatable elastic bodies B60C29/00) IPC+CPC Available in IPC and CPC
  • F15C 3/06 using balls IPC+CPC Available in IPC and CPC
  • F15C 3/08 using reeds IPC+CPC Available in IPC and CPC
  • F15C 3/16 Oscillators since 1974 IPC+CPC Available in IPC and CPC