EXCERPT FROM DOCUMENT IPC/WG/15/4
PROPOSALS FOR IMPROVING THE IPC
46. Following the procedure adopted at the twelfth session of the Working Group, proposals
were submitted to projects WG 010, WG 011, WG 012, WG 013 and WG 014, by Germany,
Japan, the Russian Federation, Sweden, and the United States of America, concerning
improvements in subclasses B21D, B41F, B60W, B63B, C07C, C07H, C09J, C11B, F21L,
F21S, F21V, F25C, F27B, F28F and in class F21. It was noted that, in the future, projects
WG 010 to WG 014 would be replaced by projects M 010 to M 014 and that this change has
already been implemented in the Technical Annexes of this report.
Subclass B21D – Discussions were based on Annex 4 to project file WG 014 containing
a proposal by Sweden to simplify the scheme of main group B21D 51/00 by deleting the
one-dot subgroups 51/02 and 51/16 and removing a dot from the remaining subgroups.
The Working Group approved in principle the deletion of these one-dot groups.
However, since this deletion impacts the advanced level, the ALS was invited to consider
whether intellectual reclassification of documents would be needed due to this deletion. The
ALS would report on its findings at the next session of the Working Group in light of the
above consideration.
EXCERPT FROM DOCUMENT IPC/SC/2/10
WG014 Annex4 (B21D51/)
The discussions were based on Annex 4 to the project file WG014.
It was agreed that the proposal on the deletion of one-dot subgroups is not accepted since it
implies reclassification. Instead, the titles of these subgroups should be improved.
The ALS invited its members to submit a modified proposal for the title of one-dot subgroups.
In the next IPC/WG meeting, the IB will refer to this project in its report to the ALS.
REQUEST FOR REVISION OF THE IPC (CL)
Class(es) or subclass(es):
B21D - Working or processing of sheet metal or metal tubes,
rods or profiles without essentially removing material;
Punching
1.
Demarcation of the area to be revised: B21D51/00 Making hollow objects
d:\106745451.doc
IPC/CE/38/
page 2
2.
Reason for the request:
Due to IPC reform, we are experiencing some structure problems in B21D51/00, with
51/02 in the advanced level and 51/16 in the core level. There is a risk for 51/16 to
attract more documents than due.
Explanation of above:
For instance, we have in the art, high pressure containers with built up structure, thus
51/24 should now take precedence over 51/04. However, this kind of situation arises
for many others products. Therefore for every particular use a reference should be
indicated in sub-groups 51/04-51/14.
3.
Detailed proposal:
Proposing Office:
Date:
Submitted herewith
European Patent Office
6 October 2006
Signature: A.Narminio
Detailed proposal (changes from IPC8 are indicated in bold characters):
51/00
51/02
51/04
51/06
51/08
51/10
51/12
51/14
51/16
51/18
51/20
51/22
Making hollow objects (from thick-walled or non-uniform tubes B21K 21/00)
.
characterised by the particular structure (B21D51/16 takes precedence)
..
built-up objects, e.g. objects with rigidly-attached bottom or cover
..
folded objects
..
ball-shaped objects
..
conically or cylindrically shaped objects
..
objects with corrugated walls
..
flattening hollow objects for transport or storage; Re-forming same (making
tubes from doubled flat material B21C 37/14)
... characterised by the particular use
....
vessels, e.g. tubs, vats, tanks, sinks, or the like
....
barrels
....
pots, e.g. for cooking
IPC/CE/38/
page 3
51/24
51/26
51/28
51/30
51/32
51/34
51/36
51/38
51/40
51/42
51/44
51/46
51/48
51/50
51/52
51/54
....
....
.....
.....
.....
......
....
...
high-pressure containers, e.g. boilers, bottles
cans or tins; Closing same in a permanent manner
folding the longitudinal seam
folding the circumferential seam
by rolling
by pressing
collapsible or like thin-walled tubes, e.g. for toothpaste
making inlet or outlet arrangements of cans, tins, baths, bottles, or other
vessels; making can ends
....
making outlet openings, e.g. bung holes
.....
making or attaching spouts
.... Making closures, e.g. caps (folded of thin metal foils in the way of making
paper caps B31D5/00; closures in conjunction with applying same B67B)
.....
Placing sealings or sealing material
.....
Making crown caps
.....
Making screw caps
... boxes, cigarette cases, or the like
... cartridges cases, e.g. for ammunition, for letter carriers in pneumatic-tube
plants
JP comments: 15- Nove-2006
It is acceptable for JP to modify the wordings in B21D51/ as proposed by EP (Annex7). But
hierarchical dots under B21D51/16 should not be changed from original scheme.