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:
Apr. 16, 1991
Filed:
Aug. 31, 1989
Ajit K Bose, Lawrenceville, NJ (US);
Union Camp Corporation, Wayne, NJ (US);
Abstract
A multiwall bag and method of packaging using a multiwall bag are described. The multiwall bag includes an outer paper bag having an uncoated inner surface. One or more thermoplastic bags containing one or more bulk materials are ultrasonically sealed closed, simultaneously green tacking a small portion of the outer surface of such thermoplastic bags to the inner surface of the paper bag. The open end of the paper bag is then closed and folded back on itself with a small amount of adhesive being applied to keep the paper bag closed. As a result, the paper bag is easily opened and the thermoplastic bags can be quickly removed therefrom for wholesale use in compatible processes.