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PCE
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DIFF Subgroup
F16J 15/40

by means of fluid

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Sealings > between relatively-moving surfaces > by means of fluid

CPC:

Sealings > between relatively-moving surfaces (F16J15/50, F16J15/52 take precedence; bellows pistons F16J3/06; piston-rings or ring sealings of similar construction F16J9/00) > by means of fluid

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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  • F16J 15/403 CPC only CPC only
  • F16J 15/406 CPC only CPC only
  • F16J 15/42 kept in sealing position by centrifugal force IPC+CPC Available in IPC and CPC
  • F16J 15/43 kept in sealing position by magnetic force since 1995 IPC+CPC Available in IPC and CPC