The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
May. 22, 1996
Ronald L Ramsey, Villa Hills, KY (US);
Lawrence Share, Skokie, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A peel seal zipper tape for reclosable plastic bags or packages includes a first and a second mutually interlocking zipper profile disposed on a top surface of a laminated film strip. The top surface is formed by a layer of a sealant material. The laminated film strip also has a bottom surface formed by a layer of a non-peel-seal material. In use, the laminated film strip is folded over enabling the zipper profiles to be interlocked with one another. In so doing, portions of the top surface of the laminated film strip face one another, so that they may be joined with a heat seal. The outside of the folded peel seal zipper tape, that is, the bottom surface of non-peel-seal material, is bonded to plastic sheet material from which reclosable plastic bags or packages are made. In the production of the bags or packages, the mutually facing portions of the laminated film strip are sealed together. The resulting seal gives a visual indication of having been broken when initially opened.