Device for forming perforations in bar-shape articles

Details Device for forming perforations in bar-shape articles Device for forming perforations in bar-shape articles

1983-03-22

1985-06-25

Millin, V.

Tobacco

Cigar or cigarette making

Including perforating

219121LK, 219121LL, 219121LQ, 219121LR, 219121LS, 219121LT, 219121LU, 219121LV, 219121LY, 219121LZ, 219121LM, A24C 560

Patent

active

045247846

ABSTRACT:
A device for forming perforations in bar-shape articles, in which the articles are pierced during their translation through a piercing station by means of bundles of focused laser rays emitted by laser diodes, disposed in fixed positions and distributed in such a way that the distance between each diode and the associated perforation on each said article is, at the instant of emission of the bundle of rays identical to the focal length thereof.

REFERENCES:
patent: 4224498 (1980-09-01), Grollimund et al.
patent: 4265254 (1981-05-01), Koch et al.
patent: 4281670 (1981-08-01), Heitmann et al.

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