One piece molded screw-type bottle cap

Details One piece molded screw-type bottle cap One piece molded screw-type bottle cap

1978-05-16

1980-07-01

Norton, Donald F.

Bottles and jars

Closures

Cap type

215341, 215DIG1, 53488, 53490, 264296, B65D 4134

Patent

active

042102510

ABSTRACT:
A one piece screw type bottle cap, a method of applying it and a method of molding it. The cap includes an internal sealing skirt having a cylindrical portion that seals against the internal surface of the bottle neck. The skirt flares inwardly and terminates at an outwardly extending collar which is bent upwardly before applying the cap to the bottle neck, and which engages the neck to form an additional seal only after the threads of the cap interengage with the threads of the neck.

REFERENCES:
patent: 3038624 (1962-06-01), Wieckmann
patent: 3441161 (1969-04-01), Van Baarn
patent: 3980195 (1976-09-01), Fillmore
patent: 4016996 (1977-04-01), Aichinger et al.

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