Bottles and jars – Closures – Cap type
Patent
1979-11-27
1981-04-14
Norton, Donald F.
Bottles and jars
Closures
Cap type
215DIG1, B65D 5300
Patent
active
042614759
ABSTRACT:
The present invention relates to a threaded stopper comprising a capsule made of polypropylene and a seal made of EVA. The end of the capsule is offset to lengthen a truncated funnel which is because of its increased length made more supple. The dish-shaped seal element is retained by the funnel and its lip is turned back against the end of the capsule. The invention finds particular application in the packing industry.
REFERENCES:
patent: 2989204 (1961-06-01), Marx
patent: 3169656 (1965-02-01), Wieckmann
patent: 3216600 (1965-11-01), Dreps
patent: 3331523 (1967-07-01), Exton
patent: 3433380 (1969-03-01), Kawchitch
patent: 3979004 (1976-09-01), Bertario
patent: 4089463 (1978-05-01), Babiol
patent: 4090631 (1978-05-01), Grussen
Norton Donald F.
Societe Nouvelle de Bovchons Plastiques S.N.B.P.
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