Fastening structure of tube and car assembly

Details Fastening structure of tube and car assembly Fastening structure of tube and car assembly

1986-03-24

1987-07-07

Hall, George T.

Receptacles

Closures

Removable closure guided in rotary movement

222 81, 222 83, B65D 4104

Patent

active

046780980

ABSTRACT:
A fastening structure of a tube and cap assembly is provided. The structure includes an unthreaded part formed in the threaded portion of cap or of a mouth member of tube. The unthreaded part acts as a stopper to keep the cap being secured to the mouth member of tube, but if the cap is forcibly screwed further, the unthreaded part is rolled and deformed by the other threaded portion which does not include the unthreaded part to form threads on the unthreaded part. Due to this forcible action, a conical cutting edge, if it is provided on the inner bottom surface of cap, is pressed against the sealed mouth of tube to break the sealed mouth.

REFERENCES:
patent: 3109562 (1963-11-01), Ferris

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