Tamper-evident child-resistant cap and bottle with axial locking

Details Tamper-evident child-resistant cap and bottle with axial locking Tamper-evident child-resistant cap and bottle with axial locking

1987-11-27

1988-06-21

Hall, George T.

Bottles and jars

Closures

Having warning means or means impeding closure removal

215253, B65D 5502

Patent

active

047520132

ABSTRACT:
A tamper-evident child-resistant screw cap for a bottle has an internally threaded closure portion and a depending cylindrical skirt portion having a pair of diametrically spaced arc segments, frangibly attached to the skirt and flexurally attached to the open end of the closure portion. The arc segments have downward-facing ratchet dogs engaged with upward-facing ratchet teeth on the bottle neck. Each arc segment has an upstanding rigid lever which may be inwardly depressed to disengage the ratchet dogs from the ratchet teeth of the bottle neck, permitting first removal of the cap only after breaking the frangible attachments and depressing the levers while unscrewing the cap; thereafter permitting removal only by depressing the levers while unscrewing the cap, or by breaking off the levers and arc segments at their flexural attachments, thereby converting the cap to a non child-resistant configuration.

REFERENCES:
patent: 3954200 (1976-05-01), Willis
patent: 4540098 (1985-09-01), Luker
patent: 4630743 (1986-12-01), Wright

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