Tampering indicating bottle cap and method of closing a bottle

Details Tampering indicating bottle cap and method of closing a bottle Tampering indicating bottle cap and method of closing a bottle

1982-10-06

1984-05-08

Norton, Donald F.

Bottles and jars

Closures

Cap type

53488, B65D 4128

Patent

active

044469810

ABSTRACT:
Bottle cap having an outer peripheral skirt for receipt around the neck of a bottle has an axial end for closing the bottle mouth. The axial end has a central raised portion the bottom periphery of which flanges outward to form a peripheral top collar portion which overlies the thickness of the bottle neck end face with the peripheral wall of the central portion having an o.d. not greater than the inner diameter of the bottle neck portion. The central portion of the top is collapsible vertically downwardly with the peripheral wall convoluting interior of the bottle neck into pressed circumferential engagement with the i.d. to provide an effective 360.degree. seal. Upon removal of the so-collapsed top from the bottle, and attempted closure, the convoluted portion will interfere with the neck wall of the bottle forcing the central portion to project upwardly providing a tell-tale sign that the bottle has been opened.

REFERENCES:
patent: 1162519 (1915-11-01), Schuster
patent: 3057501 (1962-10-01), Kroenert

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