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:
May. 26, 1981
Filed:
Feb. 26, 1979
Applicant:
Inventor:
Bjarne Omdal, Porsgrunn, NO;
Assignee:
Norsk Hydro a.s., Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B65D / ;
U.S. Cl.
CPC ...
150 12 ; 229 / ; 229 55 ; 493223 ; 493926 ;
Abstract
A single piece of woven material is folded in half along a fold line forming a sack top. Bottom free edges are sewn to form a bottom seam. Side free edges are sewn to form side seams which are spaced from the fold line. A single slit is formed from the fold line between the side edges. The slit does not cut lengthwise extending strips of the woven material, such that upon lifting the sack by lifting loops between the slit and the side edges, the lifting stress is evenly distributed among all of the lengthwise strips.