Device for applying adhesive to a plurality of strips

Details Device for applying adhesive to a plurality of strips Device for applying adhesive to a plurality of strips

1977-08-05

1979-08-07

Wityshyn, Michael G.

Coating apparatus

Solid member or material acting on coating after application

Rotary member

118122, 118DIG24, 156431, 156549, 156578, B32B 3108, B32B 3112

Patent

active

041634292

ABSTRACT:
In apparatus for applying fluid adhesive to strips to be wound helically to form a tube, the strips are led over a tank in step-wise configuration with successive strips laterally and vertically offset relative to one another but overlapping so that an upper strip partially overlaps the next lower strip. Liquid adhesive pumped from the tank is delivered onto the uppermost strip which then passes through scrapers which scrape surplus adhesive off the strips so that at least part of the surplus flows off a lateral edge of the uppermost strip onto the next lower strip. If there are more than two strips, the process is repeated so that surplus adhesive is flowed at least in part from each strip to the next lower strip. Any surplus not retained by the strips flows back to the tank.

REFERENCES:
patent: 1944886 (1934-01-01), Goessmann
patent: 2046293 (1936-06-01), German
patent: 2050519 (1936-08-01), Bleibler
patent: 2433965 (1948-01-01), Upson
patent: 2528152 (1950-10-01), Landgraf
patent: 3430543 (1969-03-01), Cunningham

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