Vacuum seal indicator for flexible packaging material

Details Vacuum seal indicator for flexible packaging material Vacuum seal indicator for flexible packaging material

1992-08-24

1994-02-22

Sewell, Paul T.

Special receptacle or package

For a building component

Shingle

2064595, 2065248, 206807, 361212, 361220, 428916, B65D 7302

Patent

active

052879623

ABSTRACT:
Plastic encapsulated semiconductor devices are susceptible to moisture due to the permeability of molding compounds. Devices may be baked until dry before being shipped to the customer to reduce the risk of cracking. To retain this dry condition, devices are packaged and shipped in dry-packs. A vacuum seal indicator (18) for flexible material enables a user to determine the integrity of a vacuum seal. The seal indicator has a quick recognition pattern composed of either negative (22) or positive (24) features or a combination thereof, and is placed inside a dry-pack bag (30) which is vacuum sealed prior to shipping. The integrity of the vacuum seal can be determined by looking at the dry-pack bag to see whether the recognition pattern is sharply defined against the bag or not. The vacuum seal indicator can be used in conjunction with any shipping media (28) as long as the outer bag is flexible.

REFERENCES:
patent: 3756399 (1973-09-01), Cosier et al.
patent: 4295566 (1981-10-01), Vincek
patent: 4436203 (1984-03-01), Reyner
patent: 4449631 (1984-05-01), Levenberg et al.
patent: 4722451 (1988-02-01), Conrad
patent: 4767004 (1988-08-01), Ishihara et al.
patent: 4838425 (1989-06-01), O'Brien et al.
patent: 4877143 (1989-10-01), Travisano
patent: 4971196 (1990-11-01), Kitamura et al.

Affiliated with

Also associated with

Rating

Vacuum seal indicator for flexible packaging material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum seal indicator for flexible packaging material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum seal indicator for flexible packaging material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-166166