IPC Main Group
F28F 11/00 Arrangements for sealing leaky tubes or conduits
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
Related Keywords
SEALING arrangements for leaks in heat-exchange conduits
3 direct subcodes
Child Classifications
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- F28F 11/02 using obturating elements, e.g. washers, inserted and operated independently of each other
- F28F 11/04 using pairs of obturating elements, e.g. washers, mounted upon central operating rods
- F28F 11/06 using automatic tube-obturating appliances