Flexible bags – Wall details – Specified seam structure
Patent
1987-10-16
1989-02-28
Marcus, Stephen
Flexible bags
Wall details
Specified seam structure
206484, 53373, 156581, B65D 3000
Patent
active
048080101
ABSTRACT:
A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch, the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.
REFERENCES:
patent: D138697 (1944-09-01), Salfisberg
patent: 2230849 (1941-02-01), Salfisberg
patent: 2329360 (1943-09-01), Salfisberg
patent: 3155282 (1964-11-01), Leblane
patent: 3184121 (1965-05-01), Volckening
patent: 3278085 (1964-06-01), Brown
patent: 3510054 (1970-05-01), Sanni et al.
patent: 4506494 (1985-03-01), Shimoyama et al.
Drawing-American Can Film, Prodo Pak-8/26/87.
Lee, Jr. William D.
Marcus Stephen
Quatt Mark B.
Stucker Nora
Toney John J.
LandOfFree
Easy-open flexible pouch and apparatus and method for making sam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Easy-open flexible pouch and apparatus and method for making sam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Easy-open flexible pouch and apparatus and method for making sam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1362131