Tamper-resistant envelope closure

Details Tamper-resistant envelope closure Tamper-resistant envelope closure

1994-02-24

1996-12-17

Pascua, Jes F.

Flexible bags

Tamper indicating

383 84, 383 93, B65D 3334

Patent

active

055845800

ABSTRACT:
A tamper-resistance envelope formed of a thermoplastic resin comprises two opposing panels having respective bottom and side wall edges bonded together to form a pocket therebetween. The top of the pocket is open for inserting an item into the pocket. Each panel has an edge portion adjacent the opening. A bead of pressure-sensitive adhesive is applied along each of the edge portions, and the adhesive bead is heat-seal bonded to the thermoplastic edge portion. The edge portions are brought together to bring the adhesive beads into contact to close the opening. By heat-seal bonding the adhesive beads directly to the thermoplastic edge portions, the pressure sensitive adhesive is resistant to being open by supercooling.

REFERENCES:
patent: 3510053 (1970-05-01), Focke
patent: 4235653 (1980-11-01), Ausnit
patent: 4247563 (1981-01-01), Sample
patent: 4464158 (1984-08-01), Kardon
patent: 4483018 (1984-11-01), Whelan
patent: 4601694 (1986-07-01), Ausnit
patent: 4708705 (1987-11-01), Aubry
patent: 4709397 (1987-11-01), Voshall et al.
patent: 4834552 (1989-05-01), Makowka
patent: 4932791 (1990-06-01), Vetter
patent: 4937040 (1990-06-01), Holcomb
patent: 4988547 (1991-01-01), Voto, Jr. et al.
patent: 4998666 (1991-03-01), Ewan
patent: 5045040 (1991-09-01), Vetter
patent: 5077001 (1991-12-01), Makowka
patent: 5108194 (1992-04-01), Raden
patent: 5219194 (1993-06-01), Trent
patent: 5294470 (1994-03-01), Ewan
patent: 5318364 (1994-06-01), Raden
patent: 5346301 (1994-09-01), Scarberry
patent: 5352041 (1994-10-01), Fullerton
patent: 5405197 (1995-04-01), Makowka
patent: 5407277 (1995-04-01), Burke
patent: 5425825 (1995-06-01), Rasko

Affiliated with

Also associated with

Rating

Tamper-resistant envelope 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 Tamper-resistant envelope closure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper-resistant envelope closure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1986365