Method and apparatus for spray coating

Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam

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239 85, B05C 504

Patent

active

046323090

ABSTRACT:
In an open-atmosphere powdered flame spray gun and method of spray application, a plurality of passageways extending through the gun body delivers a powderized thermoplastic, combustion air, and a fuel into an open mixing and combustion chamber defined by a hood about the body. The resultant mixture ignites melting the plastic, which is then expelled from the chamber by a source of propelling air so as to provide a plastic coating about a desired object.

REFERENCES:
patent: 2125764 (1938-08-01), Benoit
patent: 2404590 (1946-07-01), Nantz
patent: 2436335 (1948-02-01), Simonsen
patent: 2544259 (1951-03-01), Duccini et al.
patent: 2643955 (1953-06-01), Powers et al.
patent: 2794677 (1957-06-01), Collardin et al.
patent: 2804337 (1957-08-01), Marantz
patent: 2961335 (1960-11-01), Shepard
patent: 3171599 (1965-03-01), Rotolico
patent: 3460764 (1969-08-01), Wallis
patent: 3565345 (1971-02-01), Moltzan
patent: 4368846 (1983-01-01), Rau et al.

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