Method of manufacturing waterproof nuts

Details Method of manufacturing waterproof nuts Method of manufacturing waterproof nuts

1987-09-03

1988-11-29

Combs, E. Michael

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

10 86R, 10 86C, 264310, 2643289, B29C 4500, B21D 5324

Patent

active

047880228

ABSTRACT:
A waterproof nut which may be used, for example, inside a water storage tank, is constituted by a metallic nut body having the outer periphery coated with a synthetic resin layer which also covers both the front and rear surfaces of the nut body. The resin layer which covers the rear surface of the nut body includes a cap-shaped portion for accommodating the free end of a bolt which is screwed into the nut body in such a manner that the free end projects from the rear surface of the nut body, whereby water is prevented from entering the nut body.

REFERENCES:
patent: 1904263 (1933-04-01), Berge
patent: 2018301 (1935-10-01), Ferry
patent: 2795144 (1957-06-01), Morse
patent: 4316690 (1982-02-01), Voller
patent: 4373842 (1983-02-01), Bettini et al.
patent: 4397437 (1983-08-01), Madej
patent: 4446185 (1984-05-01), Waragai et al.
patent: 4452556 (1984-06-01), Nelson et al.
patent: 4482278 (1984-11-01), Dorn
patent: 4557654 (1985-12-01), Masuda et al.

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