Expandable stopper

Details Expandable stopper Expandable stopper

1991-06-21

1992-05-05

Marcus, Stephen

Bottles and jars

Closures

Stopper type

215358, 215361, 215364, B65D 3912

Patent

active

051099977

ABSTRACT:
A stopper for a bottle mouth includes a hollow body closed at its lower end and defining a cylindrical cavity, into which a plug of relatively soft material is placed. A cap having a core portion sized to fit within the cavity, and external helical threads engaged with the internal threads within the body, can be turned to advance the core against the plug, causing the plug to expand the hollow body against the mouth. The cap may have a peripheral flange provided with threads for engaging like threads on the bottle, and these threads may be driven radially together by a band clamp.

REFERENCES:
patent: 702702 (1902-06-01), Burns
patent: 2046224 (1936-06-01), Vanderhoop
patent: 2095272 (1937-10-01), Vanderhoof
patent: 2439628 (1948-04-01), Kopecky
patent: 2446661 (1948-08-01), Murdock
patent: 2536426 (1951-02-01), Oliveira
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patent: 3015403 (1962-01-01), Fuller
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patent: 3245569 (1966-04-01), Essich
patent: 3297187 (1967-01-01), Thiesen
patent: 3434615 (1969-03-01), Barletta
patent: 3525365 (1970-08-01), Meulendyk et al.
patent: 3937350 (1976-02-01), Volker
patent: 4019646 (1977-04-01), Imamura
patent: 4800156 (1989-01-01), Yuhda

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