EP 0370272 B1 19940713 - Screw closure for bottles having a deaeration device.
Title (en)
Screw closure for bottles having a deaeration device.
Title (de)
Schraubverschluss für Flaschen mit Entlüftungseinrichtung.
Title (fr)
Bouchon à vis avec dispositif de dégazage.
Publication
Application
Priority
DE 3839351 A 19881122
Abstract (en)
[origin: US4997097A] The invention relates to a screw closure of plastics material for bottles which are under pressure, comprising a cap (1) having a cap end portion (2) and a substantially cylindrical peripheral cap portion (3) with internal screwthread (7), and a circumferentially extending, inwardly projecting bead (5) at the transition between the cap end portion (2) and the peripheral cap portion (3), wherein a sealing disc (9) which is movable relative to the cap bears against the inward side of the cap end portion (2) and the projecting bead (5). In order, in regard to such a pressure-tight closure, to limit the maximum pressure up to which the closure remains pressure-tight, to a value which is noticeably below the pressure at which a bottle explodes, it is proposed in accordance with the invention that the bead has a segment-like interruption.
IPC 1-7
IPC 8 full level
B65D 51/16 (2006.01)
CPC (source: EP US)
B65D 41/3428 (2013.01 - EP US); B65D 51/1661 (2013.01 - EP US)
Citation (examination)
EP 0055916 A1 19820714 - ETHYL PROD [US]
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0370272 A1 19900530; EP 0370272 B1 19940713; DE 3839351 A1 19900531; DE 58908040 D1 19940818; ES 2058441 T3 19941101; US 4997097 A 19910305
DOCDB simple family (application)
EP 89120148 A 19891031; DE 3839351 A 19881122; DE 58908040 T 19891031; ES 89120148 T 19891031; US 43999889 A 19891121