Container with tamper-evident band having inward bent retainer p

Details Container with tamper-evident band having inward bent retainer p Container with tamper-evident band having inward bent retainer p

1993-03-23

1995-03-21

Shoap, Allan N.

Receptacles

Closures

With closure opening arrangements for means

220270, B65D 1740

Patent

active

053988361

ABSTRACT:
A thin-walled, cup shaped container molded of polypropylene, or other suitable material, is formed with a tamper-evident band initially positioned outside the lip at the top of the container wall. The lower edge of the band is connected to the container by spaced frangible bridges. A lid closes off the top of the container and has an outer and inner skirt respectively fitting outside and inside the container lip. The upper end of the band is formed into an annular inward projection overlying the periphery of the lid. Forming the retainer projection is accomplished by bringing a heated tool in contact with the band to heat the same until near its melting temperature. The tool has slanted walls converging at a radius and shaped to bend the projection approximately horizontally inward. The lid cannot be removed without tearing off the band.

REFERENCES:
patent: 3884393 (1975-05-01), Wassilieff
patent: 4024976 (1977-05-01), Acton
patent: 4190175 (1980-02-01), Allen
patent: 4708255 (1987-11-01), Thompson
patent: 4709824 (1987-12-01), Thompson
patent: 4711364 (1987-12-01), Letica
patent: 4793506 (1988-12-01), Thompson
patent: 4811857 (1989-03-01), Thompson
patent: 4823967 (1989-04-01), Thompson
patent: 4856667 (1989-08-01), Thompson
patent: 4872304 (1989-10-01), Thompson
patent: 4998622 (1991-03-01), Drack
patent: 5052574 (1991-10-01), McKinnon
patent: 5163575 (1992-11-01), Luch et al.
patent: 5170905 (1992-12-01), Luch
patent: 5249694 (1993-10-01), Nelson
patent: 5307948 (1994-05-01), Blackburn et al.

Affiliated with

Also associated with

Rating

Container with tamper-evident band having inward bent retainer p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Container with tamper-evident band having inward bent retainer p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Container with tamper-evident band having inward bent retainer p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1143933