Coating apparatus – Solid member or material acting on coating after application – Rotary member
Patent
1978-11-16
1980-11-25
McIntosh, John P.
Coating apparatus
Solid member or material acting on coating after application
Rotary member
118248, 118259, B05C 108, B05C 1900
Patent
active
042351898
ABSTRACT:
Apparatus for applying bronze powder to adhesive-coated portions of one side of a running web of cigarette paper has a magazine for a supply of bronze powder and a feed screw which draws powder from the magazine and delivers some of the withdrawn powder into a chamber for a transfer wheel whose peripheral surface applies powder to the one side of the web. The powder which fails to adhere to the web is returned into the helical groove of the feed screw upstream of the chamber. A cylindrical sleeve which surrounds the feed screw has an outlet located downstream of the chamber and serving to return into the magazine such powder which is transported beyond the chamber. The sleeve has a longitudinally extending slot for a brush whose bristles extend into the helical groove of the feed screw to prevent agglomeration of powder in the groove.
REFERENCES:
patent: 289718 (1983-12-01), Schaefer
patent: 2169078 (1939-08-01), Waite
patent: 3122453 (1964-02-01), Montgomery
patent: 3659556 (1972-05-01), Mutschler
patent: 3820505 (1974-06-01), Goldbach et al.
Hauni-Werke Korber & Co. KG
Kontler Peter K.
McIntosh John P.
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