Dispensing – With lock or fastening seal – Plural
Patent
1991-11-13
1992-12-08
Shaver, Kevin P.
Dispensing
With lock or fastening seal
Plural
215330, 215216, B67B 500, B65D 8314
Patent
active
051690330
ABSTRACT:
A container-closure assembly comprises a container molded of relatively soft plastic and a closure cap molded of relatively hard plastic and having a top wall and a continuous side wall. Threads are formed on both the finish of the container and inward on the side wall of the cap. The threads on the cap comprise three threaded segments spaced about the inner circumference of the side wall. The segments include an inward upwardly sloping rib, the upper surface of which is formed with a plurality of wedge-shaped teeth. In use, the closure is screwed on to the top of the container finish and the teeth dig onto the underside of the threads on the finish causing the instantaneous elastic deformation of the plastic of the finish to anchor the cap against removal.
REFERENCES:
patent: 2162880 (1939-06-01), Brown
patent: 3511403 (1970-05-01), Braun
patent: 4053077 (1977-10-01), De Felice
patent: 4084716 (1978-04-01), Bogert
patent: 4345691 (1982-08-01), Burke
patent: 4366921 (1983-01-01), Kirk, Jr.
patent: 4461394 (1984-07-01), Sendel et al.
patent: 4697715 (1987-10-01), Beruvides
DeRosa Kenneth
Hoopes Dallett
Shaver Kevin P.
Specialty Packaging Licensing Company, Inc.
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