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:
Jun. 04, 1985
Filed:
Dec. 12, 1983
Applicant:
Inventor:
Kenneth R Berger, Grapevine, TX (US);
Assignee:
Frito-Lay, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B65D / ;
U.S. Cl.
CPC ...
428 35 ; 428 36 ; 428 41 ; 428 43 ; 428412 ; 4284758 ; 4284761 ; 4284796 ; 428481 ; 428483 ; 428516 ; 428518 ; 428519 ; 428520 ; 428345 ; 206631 ; 206484 ;
Abstract
A packaging material has a peelable seal and a sealing of resin which is ultrasonically-sealable, but not readily heat-sealable backed by a backing layer of resin having a higher melting point than the sealing layer. The interlayer adhesion between the backing layer and the sealing layer is below the strength required to break the sealing layer. The thickness and material of the sealing material is utilized to control the seal strength of the peelable end seal of the package.