# US 5,348,398 A · Container

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- Number: US 5,348,398 A
- Document ID: US5348398A
- Status: Granted
- Kind: A
- Application number: 08/177,706
- Filed: 1994-01-04
- Granted: 1994-09-20
- Earliest claimed: 1990-05-02
- Assignees: Jebco Packaging Systems, Inc.
- Inventors: Jerry E. Buchanan
- Web page: https://patentgrep.com/patent/US5348398A

## CPC

- B65D 31/08: {with block bottoms}
- B65D 75/008: {Standing pouches, i.e. "Standbeutel"}
- B31B 2150/00: Flexible containers made from sheets or blanks, e.g. from flattened tubes
- B31B 2160/20: with structural provision for thickness of contents
- B31B 2170/20: having multi-layered walls, e.g. laminated or lined
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)

## Abstract

A container 10 and method of making the same preferably from a single web of flexible material wherein the method comprises placing a V-fold, or modified flat V-fold, in a sheet of such material, creating two subsections whose V-fold members (58, 60) are attached to the respective subsections preferably along a longitudinal fold line. First and second side edge weld lines (100, a,b) are made thereby connecting the respective subsections to their own V-fold members (58, 60) as well as those of the opposite subsections. Oblique weld lines (86, 88) then interconnect the point of intersection of the side edge weld lines (66,76) and longitudinal fold line. The bottom wall (2) is formed by folding the legs (80, 82) inwardly with the endmost portions of which pivoting along a lateral axis of the bottom wall (2) upwardly towards the first and second side edge weld line (100, a,b) thereby reinforcing the stress-bearing bottom.

## Claims

### Claim 1

A container produced according to the method that comprises the steps of:
forming material into an intermediate structure having a first subsection having an upper edge and a lower edge, a second subsection underlying said first subsection and having an upper edge and a lower edge, and a folded section intermediate the first and second subsections having a first fold attached to the lower edge of the first subsection, a second fold attached to the lower edge of the second subsection and an uncreased middle member extending between and joined to the first and second folds along fold lines,
welding side edges of the intermediate structure together along first and second side edge weld lines thereby welding the first and second subsections to respective first and second folds of the intermediate folded section to form first and second legs;
placing on the intermediate structure first and second legs a first oblique weld line interconnecting the first side edge weld line and the lower edge of the first and second subsections to weld the first subsection to the first fold and the second subsection to the second fold thereby defining endmost portions of said legs bounded by said first side edge weld, said lower edges and said first oblique weld line;
placing on the intermediate structure first and second legs a second oblique weld line interconnecting the second side edge weld line and the lower edge of the first and second subsections to weld the first subsection to the first fold and the second subsection to the second fold thereby defining other endmost portions of said legs bounded by said second side edge, and said lower edges and said second oblique weld line;
folding the first and second legs inwardly so as to overlay said middle member; and
separating the first subsection from the second subsection to form an interior space between the first and second side edge weld lines so as to cause said endmost and other endmost portions of the legs to pivot upwardly towards the first side edge weld line and the second side edge weld line respectively to form said container having a front wall, a rear wall, a pair of opposing sidewalls interconnecting the front wall and rear wall, and an uncreased bottom wall reinforced by said first and second legs wherein the uncreased bottom wall is the uncreased middle member.

### Claim 2 (depends on 1)

The container of claim 1 wherein after folding the first and second legs inwardly the first and second legs are welded to the middle member.