Tamperproof closure

Details Tamperproof closure Tamperproof closure

1979-02-23

1980-06-10

Norton, Donald F.

Bottles and jars

Closures

Shrinkable closure, fastener, or seal

215252, B65D 4134

Patent

active

042068517

ABSTRACT:
A thermoplastic tamperproof closure for fitment to a container is disclosed. The container has a threaded neck and an outwardly extending flange beneath the neck threads. The closure features a top wall with an annular sidewall downwardly depending therefrom and having about its inside surface a thread for cooperation with the container thread. Attached to the sidewall by a plurality of spaced apart, non-fracturable ribs is a fracturable band which will fit in a position of intereference under the container flange. This fit is achieved by applying heat to the ribs and band, after the closure is fitted to the container, causing the band and ribs to shrink to the position of interference.

REFERENCES:
patent: 2608334 (1952-08-01), Knocke
patent: 3329295 (1967-07-01), Fields
patent: 3438528 (1969-04-01), Fields
patent: 3441161 (1969-04-01), Van Baarn
patent: 3673761 (1972-07-01), Leitz
patent: 3812991 (1974-05-01), Wurl
patent: 3861551 (1975-01-01), Hannon
patent: 4033472 (1977-07-01), Aichinger
patent: 4126240 (1978-11-01), Brach

Affiliated with

Also associated with

Rating

Tamperproof closure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tamperproof closure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamperproof closure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-858754