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)

Child Classifications

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• F16J 1/001 +1 CPC CPC only CPC only
• F16J 1/005 +1 CPC CPC only CPC only
• F16J 1/01 characterised by the use of particular materials (F16J1/02 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
• F16J 1/02 Bearing surfaces IPC+CPC Available in IPC and CPC
• F16J 1/04 Resilient guiding parts, e.g. skirts, particularly for trunk pistons IPC+CPC Available in IPC and CPC
• F16J 1/08 Constructional features providing for lubrication IPC+CPC Available in IPC and CPC
• F16J 1/09 with means for guiding fluids (F16J1/08 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
• F16J 1/10 Connection to driving members IPC+CPC Available in IPC and CPC