EP 0690812 A1 19960110 - SCREW CAP WITH OVER-TIGHTENING PROTECTION
Title (en)
SCREW CAP WITH OVER-TIGHTENING PROTECTION
Title (de)
SCHRAUBBARE VERSCHLUSSKAPPE MIT ÜBERDREHSICHERUNG
Title (fr)
BOUCHON FILETE A PROTECTION EN CAS DE SERRAGE EXCESSIF
Publication
Application
Priority
- CH 9500017 W 19950126
- CH 28994 A 19940201
Abstract (en)
[origin: WO9521095A1] If a screw cap of a beverage bottle is over-tightened (by being turned in the wrong direction) there is the risk that, owing to the high internal pressure, not only may the thread jump but also the cap may be blown off the bottle. To prevent this, the invention proposes a screw cap with over-tightening protection. At the cap cover end of the female thread there is a leader component (3) which can engage with the thread leader of the bottle neck if the cap is overtightened. The cap wall is thus pressed outwards in the region of the leader component on over-tightening, thus facilitating jumping in this region. Hence, if over-tightening continues, the cap jumps only on one side, that of the leader compinent and the cap cannot be pushed off. In a further embodiment of the invention there are hold-open components (7, 8) in the sealing region. The deformation of the sealing region occurring during over-tightening causes said components to contact the bottle opening and the sealing lines are broken, and thus the bottle is vented even before the thread jumps.
IPC 1-7
IPC 8 full level
B65D 41/04 (2006.01)
CPC (source: EP KR US)
B65D 41/04 (2013.01 - KR); B65D 41/0421 (2013.01 - EP US); B65D 41/0471 (2013.01 - EP US); Y10S 215/902 (2013.01 - EP US)
Citation (search report)
See references of WO 9521095A1
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9521095 A1 19950810; AU 1412095 A 19950821; AU 681931 B2 19970911; BR 9505834 A 19970812; CA 2157195 A1 19950810; CA 2157195 C 20050816; CN 1048950 C 20000202; CN 1122122 A 19960508; CO 4370040 A1 19961007; DE 59500437 D1 19970904; EP 0690812 A1 19960110; EP 0690812 B1 19970730; ES 2104475 T3 19971001; HU 218859 B 20001228; HU 9502789 D0 19951228; HU T72707 A 19960528; IL 112387 A0 19950330; IL 112387 A 19970713; JP H08508700 A 19960917; KR 100381125 B1 20031017; KR 960700940 A 19960224; NZ 278041 A 19970129; PL 178654 B1 20000531; PL 310941 A1 19960108; RU 2135402 C1 19990827; US 5871111 A 19990216; ZA 95737 B 19951004
DOCDB simple family (application)
CH 9500017 W 19950126; AU 1412095 A 19950126; BR 9505834 A 19950126; CA 2157195 A 19950126; CN 95190043 A 19950126; CO 95003154 A 19950127; DE 59500437 T 19950126; EP 95905518 A 19950126; ES 95905518 T 19950126; HU 9502789 A 19950126; IL 11238795 A 19950119; JP 52029795 A 19950126; KR 19950704158 A 19950927; NZ 27804195 A 19950126; PL 31094195 A 19950126; RU 95117994 A 19950126; US 53023796 A 19960515; ZA 95737 A 19950131