IPC Definitions - January 01, 2012

B21D 26/033 - Definition fr

Definition statement

This group covers:

Devices and methods for deforming sheet metal in the form of metal tubes, e.g. cylinders, with or without bottom, by applying fluid pressure.

References relevant to classification in this group

This group does not cover:

Corrugating tubes by applying fluid pressure

B21D 15/03, B21D 15/10

Informative references

Attention is drawn to the following places, which may be of interest for search:

Tube expanders

B21D 39/08

Special rules of classification

When the invention is characterized by the shape of the bodies to be deformed in combination with a particular material feature of the bodies to be deformed, the invention shall also be classified in B21D 26/053 and subgroups thereof.