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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

Top Applicants

Top Applicants (IPC)

Class B30,2013–2023, worldwide · Source: EPO PATSTAT

  1. HUECK RHEINISCHE DE 145
  2. WORLD PRECISE MACHINERY CO., LTD. (CHINA) 132
  3. FETTE COMPACTING DE 131
  4. AIDA ENGINEERING 119
  5. KORSCH DE 104
  6. LG ENERGY SOLUTION KR 103
  7. SIEMPELKAMP MASCHINEN- UND ANLAGENBAU & COMPANY DE 101
  8. AIDA ENGINEERING JP 98
  9. YANGZHOU FORGING MACHINE-TOOL COMPANY 95
  10. SCHULER PRESSEN & COMPANY DE 93

Top Applicants (CPC)

Class B30,2013–2023, worldwide · Source: EPO PATSTAT

  1. HUECK RHEINISCHE DE 192
  2. SIEMPELKAMP MASCHINEN- UND ANLAGENBAU & COMPANY DE 164
  3. FETTE COMPACTING DE 138
  4. PULPAC SE 136
  5. AIDA ENGINEERING JP 136
  6. DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 131
  7. LG ENERGY SOLUTION KR 129
  8. AIDA ENGINEERING 105
  9. KORSCH DE 105
  10. JOHN DEERE US 105