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PCE
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DIFF Subgroup
F16B 39/22

in which the locking takes place during screwing down or tightening (F16B39/01 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: in which the locking takes place during screwing down or tightening

CPC: in which the locking takes place during screwing down or tightening (F16B39/01 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Locking of screws, bolts, or nuts > in which the locking takes place during screwing down or tightening

CPC:

Locking of screws, bolts or nuts (; locking of bottle closures B65D; locking of rail-fastening bolts for permanent ways E01B9/12; locking of fastening means for railway fishplates E01B11/38; locking devices for valves or cocks F16K) > in which the locking takes place during screwing down or tightening (F16B39/01 takes precedence)

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F16B 39/225 CPC only CPC only