Threaded container and closure

Details Threaded container and closure Threaded container and closure

1986-08-29

1988-01-26

Norton, Donald F.

Bottles and jars

Closures

Receptacle interior communicable with exterior with closure...

215329, B65D 4104

Patent

active

047212209

ABSTRACT:
A closure having interrupted threads, wherein the interruptions between thread segments are vertically aligned with and are at least as long as thread segments in the overlapping portions of the turns of the thread. This permits manufacture of the closure by stripping of the closure threads from a mold to obtain a higher rate of production while minimizing the pulled-thread defects previously encountered with this production method. In addition, the invention is also utilized to provide an improved closure and package in which two hand operations by the user are required to remove the closure from a neck, thereby permitting internal pressure to be released through interrupted threads before the closure and neck threads are completely disengaged.

REFERENCES:
patent: 1612449 (1926-12-01), Lee
patent: 1783314 (1930-12-01), Scofield
patent: 2990079 (1961-06-01), Garvey
patent: 4202462 (1980-05-01), Imber

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