Dry process enamel apparatus for bathtubs

Details Dry process enamel apparatus for bathtubs Dry process enamel apparatus for bathtubs

1974-04-08

1976-03-09

Stein, Mervin

Coating apparatus

Projection or spray type

Applying solid particulate material

118321, 118323, B05B 714

Patent

active

039424707

ABSTRACT:
Apparatus for automatic control and deposition of particulate material, such as powdered dry process porcelain enamel or the like, to a heated substrate, utilizing dispensing means adapted to contain particulate material and supported in overlying relation to the article to be coated, with mechanism for oscillating and actuating the dispensing means to provide for controlled application of particulate material to the article. Specifically, an improvement over the apparatus of U.S. Pat. No. 3,802,384 issued Apr. 9, 1974, whereby abutting ends of the dispensing means are biased along a generally vertical plane.

REFERENCES:
patent: 707490 (1902-08-01), Zwermann
patent: 710443 (1902-10-01), DuPont
patent: 759351 (1904-05-01), Dawes
patent: 3132038 (1964-05-01), Ward
patent: 3191574 (1965-06-01), Robertson, Jr.
patent: 3570451 (1971-03-01), Le Heron et al.
patent: 3716021 (1973-02-01), Fry
patent: 3802384 (1974-04-01), Fry

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