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.

Date of Patent:
Sep. 26, 1978

Filed:

Feb. 25, 1977
Applicant:
Inventor:

Karl F Barnett, Bloomfield Hills, MI (US);

Assignee:

Cadillac Products, Inc., Sterling Heights, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ;
U.S. Cl.
CPC ...
93 3 / ; 53463 ; 93DI / ;
Abstract

A preformed bag-like enclosure formed of heat shrink plastic film for shrink wrapping pallet loads or the like, the enclosure being generally tubular or sleeve-like in shape and provided with a reduced size opening at the top to prevent the enclosure from slipping down over the load to be wrapped prior to the application of heat for shrinking. In one embodiment the top opening is reduced in size by tapering same using upwardly and inwardly extending heat seals, in another by providing transversely extending heat seals and in further ones by providing inwardly spaced spot welds. Methods of fabrication of the latter type are also disclosed.


Find Patent Forward Citations

Barnett, Karl. (1978). Method of making a heat shrinkable bag (U.S. Patent No. 4116116). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4116116

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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