Method and apparatus for spraying insulating coating

Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – Plural inlets to one stream from another

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Details

239432, 239433, B05B 708, B05D 500

Patent

active

039572099

ABSTRACT:
A method and apparatus for spraying on a desired surface, such as a wall, ceiling, or the like, an insulating coating comprising a mixture of a flowable dry fibrous material and a liquid adhesive, very thoroughly wetting the dry material, the latter comprising cellulose fibers (as opposed to mineral fibers) together with various additives. The wet mixture is sprayed on the desired surface at such a velocity that a substantially uniform insulating coating is produced requiring no subsequent tamping, the coating being uniform as to density, consistency, appearance, and the like. The cellulosic fibers are derived from ground paper, such as bleached sulfate paper, or unbleached newspaper, kraft paper, or the like, mixed with various additives to provide the finished insulating layer with fire and rot resisting qualities, to color same, and the like.

REFERENCES:
patent: 2366969 (1945-01-01), Kiggins
patent: 2392408 (1946-01-01), Radonich
patent: 2671692 (1954-03-01), Matirko
patent: 2747934 (1956-05-01), Fisher
patent: 2879948 (1959-03-01), Seibel
patent: 3174693 (1965-03-01), Weber, Jr.
patent: 3606154 (1971-09-01), Tufts
patent: 3612405 (1971-10-01), Heinrich
patent: 3676170 (1972-07-01), Kempthorne
patent: 3844485 (1974-10-01), Waggoner

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