Anti-backoff removable closure for connecting a manually actuate

Details Anti-backoff removable closure for connecting a manually actuate Anti-backoff removable closure for connecting a manually actuate

1995-06-14

1997-11-11

Shoap, Allan N.

Bottles and jars

Closures

Cap type

215216, 215337, B65D 4104

Patent

active

056854455

ABSTRACT:
An anti-backoff, removable closure for connecting a manually actuated liquid dispenser to a container includes a closure cap having internal threads for mating engagement with similar threads on the outside of the container neck finish, both the cap and the neck finish having mutually engageable ratchet teeth mechanically retaining the closure to the container. The teeth inside the cap each have a trailing face lying in a plane sloping in a loosening direction of the cap relative to the central axis of the cap for producing a camming action between the cap teeth and the neck finish teeth, tending to cam the cap off the container in response to closure unthreading rotation.

REFERENCES:
patent: 4231479 (1980-11-01), Scheidegger
patent: 4345691 (1982-08-01), Burke
patent: 4577769 (1986-03-01), Delia
patent: 4913299 (1990-04-01), Petro
patent: 4991733 (1991-02-01), Marino
patent: 5143237 (1992-09-01), Lindsey et al.
patent: 5360127 (1994-11-01), Barriac et al.
patent: 5381911 (1995-01-01), Teicher et al.

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