Leakproof zipper end crush for reclosable bag and related...

Details Leakproof zipper end crush for reclosable bag and related... Leakproof zipper end crush for reclosable bag and related...

2008-03-25

2008-03-25

Sells, James (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S269000, C156S290000

Reexamination Certificate

active

07347908

ABSTRACT:
A reclosable bag that can be hermetically sealed. The bag comprises a pair of zipper strips that are joined in respective zones without substantial deformation of the longitudinal profiled closure elements. These zones of zipper strip joinder assist in providing a leakproof transition from the openable section of the zipper to the corner seals, where the longitudinal profiled closure elements are either substantially deformed (e.g., crushed) or absent. The method of manufacture involves the steps of ultrasonically welding a wide area and then thermally crushing a narrower area overlapping the wide welded area to form leakproof zipper joints. This method can be applied to string (flangeless) zippers as well as flanged zippers.

REFERENCES:
patent: 3790992 (1974-02-01), Herz
patent: 1 407 681 (2004-04-01), None
patent: 1399502 (1971-07-01), None
patent: WO 00/76352 (1999-06-01), None

Affiliated with

Also associated with

Rating

Leakproof zipper end crush for reclosable bag and related... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Leakproof zipper end crush for reclosable bag and related..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leakproof zipper end crush for reclosable bag and related... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2800750