Screw threaded plastic plug

Details Screw threaded plastic plug Screw threaded plastic plug

1975-03-14

1976-03-16

Hall, George T.

Receptacles

Closures

Removable closure guided in rotary movement

B65D 4104, B65D 4134

Patent

active

039441148

ABSTRACT:
A plug of plastic or other soft material to be screwed into a metal neck, with means for preventing the possibility of screwing in the plug obliquely. The means comprises a cone-shaped bevel around the first thread of the plug, the top angle of the bevelling cone corresponding to the top angle of the reamer used to ream the entry of the neck screw thread.

REFERENCES:
patent: 2962185 (1960-11-01), Starr et al.
patent: 3140007 (1964-07-01), Nettleship

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