Powder spray coating

Details Powder spray coating Powder spray coating

2005-02-08

2005-02-08

Fiorilla, Chris (Department: 1734)

Coating apparatus

Projection or spray type

With hood or offtake for waste material

C118S309000, C454S050000

Reexamination Certificate

active

06852165

ABSTRACT:
A powder spray apparatus is described including a powder booth with a scraper bar which reciprocates across the floor thereof to collect deposited overspray powder and supply it to intakes located at each end wall. The intakes are connected by a feed channel to one or more cyclone separators. An exhaust duct may also be provided for air-borne overspray powder which preferably forms part of the feed channel. Powder recovered from the cyclone separators may be passed to a common collection hopper by use of a venturi pump which transfers the powder from each separator to the hopper via a sieve located in a ventilated enclosure above the hopper.

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