Coating processes – Solid particles or fibers applied – Interior or hollow article coating
Patent
1975-10-03
1981-04-14
Beck, Shrive P.
Coating processes
Solid particles or fibers applied
Interior or hollow article coating
10 10P, 411189, 427195, 427375, B05D 302
Patent
active
042620384
ABSTRACT:
A nut having a threaded opening in which the sides of the threads are substantially uniformly coated from root to crest thereof with a thermoplastic material; also the method of producing the article in which an excess of powdered thermoplastic material is provided to fill the threaded opening with an excess of material extending beyond an end of the opening. Thereafter, the material is compacted by pressure or vibration to insure that the powdered material substantially fills the thread grooves. The nut is then heated, softening or melting those particles in contact with the thread surfaces, adhering them thereto, after which the remaining material in the threaded opening is eliminated.
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Beck Shrive P.
The Oakland Corporation
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