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. 22, 1986
Filed:
Aug. 07, 1984
Norsk Hydro a.s., Oslo, NO;
Abstract
A flexible container for filling, transport and storage of bulk material is made from at least one piece of base material. The bottom of the container is formed from at least four paired, preferably equally large, flaps which are direct extensions of the container side walls. The bottom flaps are formed by cut lines in the piece of material, and the angles .alpha. and .beta. of alternate flaps converge toward the center of the bottom. The sum of top angles .alpha. and .beta. of the flaps is less than 360.degree., such that the container bottom formed by joints of the flaps is downward slightly cone or funnel shaped when the container is filled. The sum of the angles .alpha. and .beta. of the flaps preferably is between (240.degree.-280.degree.) and 360.degree.. The container bottom will be substantially square or rectangular, depending on whether .alpha.=.beta. or .alpha..noteq..beta.. Each of the bottom seams can terminate at a distance from the center of the bottom such that there are no seams in a minor area around the center, and in this area there can be arranged a discharge spout.