B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/1, 222/116,
B65D 39/00 (2006.01) B65B 31/04 (2006.01) B65D 51/16 (2006.01)
Patent
CA 1280718
ABSTRACT OF THE DISCLOSURE A stopper for a bottle or similar type container adapted to have a pump device mounted thereon comprises a shaft having an axis for the stopper. The stopper is adapted to fit in clamping and sealing relation inside the neck of a bottle and has a channel therethrough provided with a mem- brane type non-return valve. The stopper has a portion out- side the neck of the bottle when positioned in the neck of the bottle which is adapted to receive in clamping relation a suction pressure pump device. The stopper and membrane valve are integral and made of the same elastic material, and the membrane valve has a slit with cooperating elastic parts on opposite sides thereof of the same material as said stopper. The membrane valve is positioned to close the channel, and the portion of the stopper adapted to receive the pump device has a radially extending circumferential flange extending outside the neck of the bottle when mounted thereon and being perpendicular to the axis of the stopper and adapted to rest upon the neck of a bottle. The portion of the stopper has a circumferential ridge concentric with the circumferential flange and has a diameter smaller than the outer diameter of the circumferential flange. The ridge has an outer conical side face tapering away from the circumferential flange to- wards the axis of the stopper, the circumferential flange surrounding the membrane valve which together with the cir- cumferential flange may sealably receive a pump device.
577439
Marks & Clerk
Schneider Bernardus Johannes Josephus Augustinus
Vacu Products B.v.
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