CPC Main Group
F16J 1/00 Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; ; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; ; pumps F04B; floats F16K33/00)
8 direct subcodes
Child Classifications
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- F16J 1/01 characterised by the use of particular materials (F16J1/02 takes precedence)
- F16J 1/02 Bearing surfaces
- F16J 1/04 Resilient guiding parts, e.g. skirts, particularly for trunk pistons
- F16J 1/08 Constructional features providing for lubrication
- F16J 1/09 with means for guiding fluids (F16J1/08 takes precedence)
- F16J 1/10 Connection to driving members