Coating apparatus – Solid member or material acting on coating after application – Nonuniform treatment
Patent
1981-04-23
1982-03-30
Kendall, Ralph S.
Coating apparatus
Solid member or material acting on coating after application
Nonuniform treatment
118105, 118106, 118109, 118110, 118408, 118410, 118421, B05D 722
Patent
active
043218857
ABSTRACT:
Apparatus for the quantity production of friction nuts prepared for subsequent fusion of thermoplastic resin particles deposited in thread grooves therein, in which the nuts are supported with their axes vertical, a fluid slurry of the particles in a liquid carrier is introduced into the threaded interior of the nuts to fill the threaded opening, including the thread grooves therein, either completely or to a predetermined level from the bottom of the nuts. Excess slurry is then drained from the bottom ends of the openings. The exterior of the nuts is washed or otherwise cleared of any slurry thereon. In order to leave the threads clear of obstruction at the bottom of the nut, the deposited slurry, after partially drying, is removed from the bottom thread convolutions by repeatedly inserting and withdrawing a sponge-like material directly into and out of the lower end of the thread opening, or by strongly agitating a small quantity of water in the lower part of the threaded opening, or otherwise.
REFERENCES:
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patent: 3294139 (1966-12-01), Preziosi
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patent: 3995074 (1976-11-01), Duffy et al.
patent: 4020198 (1977-04-01), Cornelius et al.
Kendall Ralph S.
The Oakland Corporation
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