Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F28F 11/04

using pairs of obturating elements, e.g. washers, mounted upon central operating rods (F28F11/06 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: using pairs of obturating elements, e.g. washers, mounted upon central operating rods

CPC: using pairs of obturating elements, e.g. washers, mounted upon central operating rods (F28F11/06 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Arrangements for sealing leaky tubes or conduits > using pairs of obturating elements, e.g. washers, mounted upon central operating rods

CPC:

Arrangements for sealing leaky tubes and conduits (stopping flow from or in pipes in general F16L55/10) > using pairs of obturating elements, e.g. washers, mounted upon central operating rods (F28F11/06 takes precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.