DIFF Subgroup
B31B 50/26 Folding sheets, blanks or webs
Introduced: January 2017
Full Title
Making rigid or semi-rigid containers, e.g. boxes or cartons > Folding sheets, blanks or webs
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2017.
Child Classifications
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- B31B 50/28 around mandrels, e.g. for forming bottoms since 2017 +1 CPC IPC+CPC Available in IPC and CPC
- B31B 50/36 by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores since 2017 IPC+CPC Available in IPC and CPC
- B31B 50/44 by plungers moving through folding dies since 2017 +2 CPC IPC+CPC Available in IPC and CPC
- B31B 50/52 by reciprocating or oscillating members, e.g. fingers (by plungers moving through folding dies B31B50/44) since 2017 IPC+CPC Available in IPC and CPC