Apparatus for externally coating endless metal tubing and like e

Details Apparatus for externally coating endless metal tubing and like e Apparatus for externally coating endless metal tubing and like e

1976-08-16

1977-07-12

McIntosh, John P.

Coating apparatus

With cutting, punching or tearing of work

118 67, 118 69, 118405, 118DIG5, B05C 1902

Patent

active

040347036

ABSTRACT:
An apparatus for externally coating elongated metal members and, particularly, endless metal tubing with synthetic-resin using a powder-melt process in which the powder is initially fused to the surface of the metal member and concurrently or subsequently caused to coalesce into a coating film. The metal member is passed through a fluidized bed of the synthetic-resin powder after being preheated and the powder is induced to flow along the metal member through an annular nozzle formed on a coating head within the fluidized bed. The powder is advantageously sucked through the coating head and is drawn via the annular nozzle into contact with the metal member.

REFERENCES:
patent: 2287825 (1942-06-01), Postlewaite
patent: 3108022 (1963-10-01), Church
patent: 3161530 (1964-12-01), Strobel
patent: 3208868 (1965-09-01), Strobel et al.
patent: 3589333 (1971-06-01), Quackenbush
patent: 3616983 (1971-11-01), Kamimura et al.

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