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PCE
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DIFF Subgroup
B30B 1/32

by plungers under fluid pressure

Introduced: September 1968

Full Title

Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen > by plungers under fluid pressure

Of 5 combined children, 3 exist in both systems.

2 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B30B 1/323 CPC only CPC only
  • B30B 1/326 CPC only CPC only
  • B30B 1/34 involving a plurality of plungers acting on the platen (gas operated B30B1/38) IPC+CPC Available in IPC and CPC
  • B30B 1/36 having telescoping plungers (gas operated B30B1/38) IPC+CPC Available in IPC and CPC
  • B30B 1/38 wherein the plungers are operated by pressure of a gas, e.g. steam, air IPC+CPC Available in IPC and CPC