Continuous rolled perforated material

Details Continuous rolled perforated material Continuous rolled perforated material

Category

B - Operations, Transporting

Subcategory

65

Subsubcategory

D

CPC

220/1

IPC codes

B65D 33/00 (2006.01)

Type

Patent

Patent number

CA 1328432

Description

ABSTRACT OF DISCLOSURE Continuous rolled material is described which is formed as lay flat tubing and which has lines of perforations running transversely to the axis of the material and dividing the material into discrete units. Alternate lines of perforations are sinusoidal lines. There are cuts in these lines of perforations at the mid-portions between the crests of the sinusoidal lines. The remaining perforations are arranged so that the transverse components of their lengths are substantially constant. Other kinds of perforated continuous material are also described.

Application Number

599594

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