EP 0490779 B1 19941130 - Metallic capsule with tear line for sealing or secondary sealing and its method of manufacture.
Title (en)
Metallic capsule with tear line for sealing or secondary sealing and its method of manufacture.
Title (de)
Metallkapsel mit Abreisslinie als Dichtung oder Sekundärdichtung und Herstellungsverfahren dafür.
Title (fr)
Capsule métallique de bouchage ou de surbouchage avec ligne de déchirement et son procédé de fabrication.
Publication
Application
Priority
FR 9015454 A 19901205
Abstract (en)
[origin: US5222616A] The invention relates to a metal cap, the thickness of the skirt of which is 0.06 to 0.4 mm, with at least one tearing ling which includes a cut or tear line and alternating transverse reliefs and external recesses, each recess ending in the tearing line or at least within 0.5 mm thereof, the thickness of the bottom wall of the tear line being 20 to 70% of the thickness of the skirt, and the tearing line having a bottom thickness which is at most equal to 70% of the thickness of the skirt. The invention also relates to a method of producing the cap. The invention is applicable to obtaining tearable tabs for metal caps which tabs tear entirely along the rear line provided without dangerous edges.
IPC 1-7
IPC 8 full level
B21D 51/38 (2006.01); B65D 41/62 (2006.01)
CPC (source: EP US)
B21D 51/383 (2013.01 - EP US); B65D 41/62 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES FR GB IT
DOCDB simple family (publication)
EP 0490779 A1 19920617; EP 0490779 B1 19941130; AT E114590 T1 19941215; DE 69105467 D1 19950112; FR 2670184 A1 19920612; FR 2670184 B1 19930122; PT 99420 A 19940131; PT 99420 B 19990226; US 5222616 A 19930629
DOCDB simple family (application)
EP 91420364 A 19911015; AT 91420364 T 19911015; DE 69105467 T 19911015; FR 9015454 A 19901205; PT 9942091 A 19911104; US 77926191 A 19911018