Reseal with a partial perforation and method and apparatus for c

Details Reseal with a partial perforation and method and apparatus for c Reseal with a partial perforation and method and apparatus for c

1997-02-24

1999-11-16

Rada, Rinaldi I.

Cutting

Other than completely through work thickness or through work...

Pricking

83 34, 83 39, 83175, 83176, 83660, 264138, 264293, B26F 118

Patent

active

059837705

ABSTRACT:
A reseal is partially perforated by stretching the reseal membrane, establishing contact between one side of the membrane and an anvil, and by effecting partial penetration of the membrane with at least one cutting edge from the other side of the membrane to a predetermined distance from the anvil. Multiple partial perforations may be made with one or more cutting edges.

REFERENCES:
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patent: 1545332 (1925-07-01), Kase
patent: 2219755 (1940-10-01), Skold
patent: 2242645 (1941-05-01), Frost
patent: 2293721 (1942-08-01), Engler
patent: 2612950 (1952-10-01), Ewing
patent: 2906423 (1959-09-01), Sandhage
patent: 3217574 (1965-11-01), Nauta et al.
patent: 3459350 (1969-08-01), Wahn
patent: 3751552 (1973-08-01), Meadors
patent: 5267966 (1993-12-01), Paul
patent: 5403293 (1995-04-01), Grabenkort

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