Overpressure valve for packaging containers

Details Overpressure valve for packaging containers Overpressure valve for packaging containers

1993-02-17

1994-07-05

Shoap, Allan N.

Flexible bags

With venting or ventilation means

Opening in bag material

426118, B65D 3301

Patent

active

053261763

ABSTRACT:
An overpressure valve for a packaging container, which prevents air from the atmosphere from getting into the package and, in the case of gas-emitting material being packaged, reduces a resultant overpressure by venting gas. The overpressure includes a valve membrane stuck to a wall of the container on top of through holes. The membrane is secured to the wall with peripheral adhesive strips, leaving an adhesive-free zone above the through holes; the adhesive-free zone forms a valve member, and the congruent part of the wall forms a valve seat. The adhesive strips have a wedge shape, so that the transitional regions of the adhesive-free zone toward the adhesive strips, rest on the wall, and the raised peripheral regions form spacers for adjacent packages to permit operation of the overpressure valve while stacked one on the other.

REFERENCES:
patent: 2927722 (1960-03-01), Metzger
patent: 2946502 (1960-07-01), Metzger
patent: 4134535 (1979-01-01), Barthels et al.
patent: 4206870 (1980-06-01), DeVries

Affiliated with

Also associated with

Rating

Overpressure valve for packaging containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-792793