Bottles and jars – Closures – With pressure-responsive valve
Patent
1975-05-01
1976-06-29
Norton, Donald F.
Bottles and jars
Closures
With pressure-responsive valve
215307, B65D 5116
Patent
active
039660710
ABSTRACT:
A pressure relieving bottle closure is disclosed. The closure is of thin metal construction having an internal sealing disc and adapted to be received by a preferably screw threaded bottle neck to form top and side seals with finish surfaces of the bottle. The sealing material comprises a resilient liner within the closure. In the area of the side skirt of the metal portion of the closure which forms the area disposed over the side seal is at least one opening. If excessive pressure develops inside the bottle, pressurized fluid first escapes through the top seal of the bottle and, upon reaching the area of the side seal over which the said opening is located, pushes the sealing liner outwardly into the opening to escape through the side seal to the exterior of the bottle. The closure again seals when the excess pressure has been relieved, provided that the sealing material used possesses sufficient resiliency.
REFERENCES:
patent: 1575464 (1926-03-01), Tamura
patent: 2389761 (1945-11-01), Burgeni
patent: 2428782 (1947-10-01), Browne
patent: 2446226 (1948-08-01), Glocker
patent: 2726002 (1955-12-01), Dalianis
patent: 3114467 (1963-12-01), Montgomery
patent: 3303955 (1967-02-01), Osborne
patent: 3349975 (1967-10-01), Damron
Norton Donald F.
Owen Allen
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