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:
Oct. 12, 1982
Filed:
Dec. 19, 1980
Applicant:
Inventor:
Gustav Kuckhermann, Achern, DE;
Assignee:
Icoma Packtechnik GmbH, Achern, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09J / ; B31B / ; B65D / ;
U.S. Cl.
CPC ...
1563084 ; 493267 ; 493245 ; 493227 ; 229 55 ; 156227 ;
Abstract
For a method of welding multi-layer paper sacks with weldable inner surfaces, the outer layers are folded back from the weldable inner layer during welding. The welding energy reaches the inner layer directly. The welding process is substantially shortened in comparison with known methods, and both the production time and processing time with such paper sacks is reduced.