EP 0109631 A3 19850731 - THREAD CLOSURE OF ELASTIC MATERIAL FOR A CONTAINER
Title (en)
THREAD CLOSURE OF ELASTIC MATERIAL FOR A CONTAINER
Publication
Application
Priority
CH 670982 A 19821117
Abstract (en)
[origin: US4540102A] A screw top has a long, thin annular sealing washer which extends from the ring part of the top to the container opening over its outer edge. During the final phase of screwing down, it is pressed on to the surface around the container opening by a pressure rib attached to the cap part. As the base or root of the washer moves further downwardly, while the contact line between the pressure rib and the packing washer remains fixed, the intermediate portion is expanded. It is therefore pressed against the opening and particularly against the outer edge of the container.
IPC 1-7
IPC 8 full level
B65D 41/04 (2006.01)
CPC (source: EP US)
B65D 41/0421 (2013.01 - EP US); Y10S 215/01 (2013.01 - EP US)
Citation (search report)
- [X] US 4276989 A 19810707 - HICKS DAVID M
- [X] FR 2410608 A1 19790629 - METAL CLOSURES GROUP LTD [GB]
- [X] US 3203571 A 19650831 - PLUNKETT ROBERT L
- [Y] US 4125201 A 19781114 - BIRCH RALPH W
Designated contracting state (EPC)
AT DE FR GB
DOCDB simple family (publication)
EP 0109631 A2 19840530; EP 0109631 A3 19850731; US 4540102 A 19850910
DOCDB simple family (application)
EP 83111331 A 19831112; US 55136383 A 19831114