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:
Sep. 19, 1989
Filed:
Aug. 28, 1987
Applicant:
Inventor:
William B Strzelewicz, Osterville, MA (US);
Assignee:
Packaging Industries Group, Inc., Hyannis, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ; B65D / ;
U.S. Cl.
CPC ...
428 352 ; 428158 ; 428178 ; 428192 ; 428284 ; 428296 ; 4283044 ; 4283184 ; 4283197 ; 428332 ; 428334 ; 428335 ; 428515 ; 428516 ; 383109 ; 229-56 ; 220453 ; 2065242 ;
Abstract
A cushioned bag has two adjacent multilayered sections comprising an outer layer of flexible thermoplastic material, a middle layer (or partial middle layer) of polyolefin film, and an inner layer of cushioning material. The sections are fused together along at least one edge of the bag to form a seamed edge comprising a fused bead. Apparatus for making a bag having a beaded edge includes cooperating heated jaws between which the bead is formed. A method of using the apparatus to make the bag includes rotating take-up rolls faster than feed rolls to pull the bag cleanly away from the jaws along the bead forming the seamed edge.