Title: Method of making shipping bag

Abstract: An improved cushioned shipping bag is disclosed, together with a unique method of continuously making the bags. The improved bag protects objects from being damaged when they are transported, shipped, handled or sent in the mail. A continuous layer of foamed plastic sheet material is positioned on and affixed (laminated) to a continuous layer of relatively thin sheet material. The laminated layers are then folded with the foamed plastic sheet material positioned on the inside; the folded laminated layers are subsequently heat sealed, glued or the like together at predetermined positions along the continuous laminate. The cushioned bag blanks subsequently are cut from the continuous laminate. In this manner, three sides of each bag are sealed and one end is left open for insertion of the objects to be shipped. The open end of the bag is provided with a foldable flap which is used to seal the bag after the objects are placed inside it.

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Inventors: Bambara, John D. (Osterville, MA, US)
Knaus, Dennis (Centerville, MA, US)

Application Number: 625700
Filing Date: 1975-10-24
Publication_date: 1977-03-15
Assignee: Packaging Industries, Inc. (Hyannis, MA)
Primary Class(es): 493/240 206/523, 383/107, 493/205, 493/208, 493/217
Other Classes:
US Patent Ref:

2962158	Nov, 1960	Struthers	229/53.
3256527	Jun, 1966	Studen	229/68.
3317038	May, 1967	Bade et al.	206/313.
3595468	Jul, 1971	Repko	229/62.
3768724	Oct, 1973	Hill	229/53.
3867874	Feb, 1975	O'Neil	93/61.

Other Refs:
Primary Examiner: Coan, James F.
Assistant Examiner:
Attorney: Brumbaugh, Graves, Donohue & Raymond