Tearable structure

Details Tearable structure Tearable structure

1986-10-06

1987-06-02

Andrews, Melvyn J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having marginal feature for indexing or weakened portion for...

428603, 428 43, 225 2, 206604, B65D 6526, B65D 1728, B65D 1732, B26F 302

Patent

active

046703527

ABSTRACT:
A method for tearing a thin sheet material and a tearable thin sheet material having a predetermined tear line wherein the material is corrugated along a predetermined tear line to be torn. The corrugations have at least one edge, a base and an apex and the material is torn along said edge.

REFERENCES:
patent: 1803348 (1931-05-01), Pasurka
patent: 2750102 (1956-06-01), Thurman
patent: 3170619 (1965-02-01), Repko
patent: 3403840 (1968-10-01), Mathes
patent: 3411706 (1968-11-01), Mela
patent: 3618850 (1971-11-01), Palmer

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