Apparatus for continuously coating a large structure with a unif

Details Apparatus for continuously coating a large structure with a unif Apparatus for continuously coating a large structure with a unif

1976-07-30

1978-04-11

Rimrodt, Louis K.

Coating apparatus

Projection or spray type

Plural projectors

118320, 156 78, 264 462, 427373, B05B 1110, B05C 502

Patent

active

040833259

ABSTRACT:
An apparatus for continuously coating a large surface with a foam layer having uniform low density and uniform thickness. The coating apparatus is positioned adjacent to the surface to be coated, with the surface movable past the apparatus in a direction substantially in the plane of the surface. The coating apparatus includes a plurality of self-rising foamable liquid application means for continuously applying the liquid to the surface. Immediately downstream, a screen positioning means moves a screen substantially parallel to the surface without relative motion therebetween. As the foam rises, it penetrates slightly through the screen and cures to a self-sustaining state. A rotatable brush then engages the upper surface of the screen to abrade and comminute the excess foam extending through the screen. Further means are provided to remove the comminuted excess foam and to lift the screen and any remaining excess foam away from the surface of the resulting uniform foam layer.

REFERENCES:
patent: 2470068 (1949-05-01), Contenson
patent: 2770864 (1956-11-01), Weese
patent: 3564085 (1971-02-01), Schickedanz
patent: 3793102 (1974-02-01), Day
patent: 3880559 (1975-04-01), Peille
patent: 3942925 (1976-03-01), Schmitzer et al.

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