Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...
Patent
1978-08-23
1980-08-05
Martin, Jr., Roland E.
Coating apparatus
With means to apply electrical and/or radiant energy to work...
Electrostatic and/or electromagnetic attraction or...
118306, 118317, 118308, 427 28, 427181, 427236, 427286, 427424, B05B 502, B05C 502
Patent
active
042156483
ABSTRACT:
A powder applicator for applying powder to form a side stripe to the interior of can bodies along side seams thereof. The powder applicator includes a device for providing a layering effect on the gas entrained powder so that although the powder is normally carried by the gaseous stream it is directed into an orifice of a nozzle as a dense stream with the carrier gas forming a separate layer. In addition, the applicator forms a seal with the interior of the can body to define a limited sealed area within which the powder may pass. This sealed area contains corona charging pins which are arranged in a longitudinal line so that a maximum charging of the powder may be effected. Also, a diffused gas is directed into the sealed area to prevent the powder from clinging to the side walls of the sealed area and the charging pins.
REFERENCES:
patent: 3545996 (1970-12-01), Duncan
patent: 4098226 (1978-07-01), Furter
Hernandez Rafael J.
Merle Joseph J.
Payne Robert D.
Stamets Stanley L.
Winkless Robert A.
Brown Charles E.
Martin Jr. Roland E.
The Continental Group Inc.
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