Slit imparting device for forming through cuts in a plastic film

Details Slit imparting device for forming through cuts in a plastic film Slit imparting device for forming through cuts in a plastic film

1989-10-06

1990-12-18

Yost, Frank T.

Cutting

Tool or tool with support

Rotatable type

83678, 83886, 493363, B26D 312

Patent

active

049778072

ABSTRACT:
A device for forming slits, or through cuts, in a plastic film. The device is a disc having a circumferential surface and pseudotriangular slender cutting edges consisting of protrusions aligned linearly in a plurality of straight rows extending around the entire circumferential surface, the protrusions extending outwardly from said circumferential surface at angle of at least 60.degree. and no greater than 100.degree..

REFERENCES:
patent: 2801501 (1957-08-01), Marogg
patent: 3114312 (1963-12-01), Laue
patent: 3520220 (1970-07-01), Acker
patent: 3891494 (1975-06-01), Hunter
patent: 3978753 (1976-09-01), Meaden et al.
patent: 4254601 (1981-03-01), Prager et al.

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