Pneumatic conveying method for flexible webs

Details Pneumatic conveying method for flexible webs Pneumatic conveying method for flexible webs

1984-11-08

1985-09-24

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

83 98, 83402, 225 4, 225 96, 225100, B65H 3510

Patent

active

045428425

ABSTRACT:
A method for conveying a web using inner and outer pairs of elongated side jet nozzles employing the Coanda effect to propel the web while preventing undue distortion or folding thereof. Conveying is accomplished by flowing pressurized air through a plurality of apertures formed in the nozzles and attaching air flow to Coanda flow attachment surfaces slanting away from the apertures.

REFERENCES:
patent: 3721375 (1973-03-01), Roberts et al.
patent: 4472886 (1984-09-01), Reba
patent: 4472888 (1984-09-01), Spiller
patent: 4484500 (1984-11-01), Reba et al.
patent: 4499801 (1985-02-01), Reba et al.
patent: 4505412 (1985-03-01), Reba

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