IPC Subgroup
F22B 37/1 Water tubes; Accessories therefor
Introduced: September 1968
Last revised: January 2006
Full Title
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Water tubes; Accessories therefor
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- METHODS OF STEAM GENERATION; STEAM BOILERS
5 direct subcodes
Child Classifications
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- F22B 37/12 Forms of water tubes, e.g. of varying cross-section
- F22B 37/14 Supply mains, e.g. rising mains, down-comers, in connection with water tubes
- F22B 37/16 Return bends
- F22B 37/18 Inserts, e.g. for receiving deposits from water
- F22B 37/2 Supporting arrangements, e.g. for securing water-tube sets