Device for the repeated opening and closing of an aperture in a

Details Device for the repeated opening and closing of an aperture in a Device for the repeated opening and closing of an aperture in a

1979-11-08

1981-07-28

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

220306, 220307, 220403, 220454, 220461, 222541, 222569, B65D 5300

Patent

active

042806348

ABSTRACT:
Device for the repeated opening and closing of an aperture in a cover of a container which cover is provided at its bottom side with a layer of plastics material, wherein a pouring member 20 of plastics material is provided with a flange 22 which is tightly connected to the plastics material layer 12 on the bottom side of the cover 10 and, at a distance from the upper side of the cover 10, with a bulge 30 which is surrounded by a tightly mounted closing member 28,60.

REFERENCES:
patent: 3169690 (1965-02-01), Scholle
patent: 4076151 (1978-02-01), Littlefield

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