Apparatus for spraying heat responsive materials

Details Apparatus for spraying heat responsive materials Apparatus for spraying heat responsive materials

1976-07-01

1977-12-27

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

With means fusing solid spray material at discharge means

239133, 239135, 239425, B05B 716

Patent

active

040650570

ABSTRACT:
In apparatus for spraying heat responsive materials, a serpentine path is provided so that a flow of compressed air or an inert gas first traverses the inside surface of the housing in order to maintain the outside surface of the apparatus in a relatively cool condition. The compressed air or inert gas continues to flow along its serpentine path, being gradually heated, and then is centrally discharged together with the material to be sprayed which may, for example, be a powder in the form of a pure resin or a mixture. In order to prevent "powder balling" or "spitting" of the resin as it is discharged, baffle means are provided surrounding the nozzle so that the heated compressed air or inert gas does not come into contact with the resin until it is in a mixing chamber that is downstream of and away from the nozzle.

REFERENCES:
patent: 2101922 (1937-12-01), Stoesling
patent: 3677471 (1972-07-01), Deakin
patent: 3958758 (1976-05-01), Piorkowski

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