Screw top

Details Screw top Screw top

1993-02-05

1993-12-28

Shoap, Allan N.

Bottles and jars

Closures

Frangible member or portion

215258, B65D 4132

Patent

active

052731731

ABSTRACT:
The invention relates to a screw top comprising essentially two elements formed by a skirt and a sealing ring connected together in a number of places by means of small cross-elements which can be broken when unscrewing the top, characterised in that of said two elements, either the skirt (2) or the sealing ring (3) comprises prolongations (8-10) which extend sufficiently far towards and beyond the opposite element so as to prevent any deformation of the sealing ring (3) in the radial direction of the top.

REFERENCES:
patent: 3737064 (1973-06-01), Patel et al.
patent: 4147268 (1979-04-01), Patel et al.
patent: 4326639 (1982-04-01), Stahl et al.
patent: 4346811 (1982-08-01), Hilaire
patent: 4527706 (1985-07-01), Swartzbaugh et al.
patent: 4577770 (1986-03-01), Wright
patent: 4919285 (1990-04-01), Roof et al.
patent: 4978017 (1991-07-01), McBride

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