Folding device
US6238328A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Oct 25, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24264
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet material assembly comprising a stack of longitudinally folded sheet material webs including a first web and second web. The first web includes a first fold, a second fold overlying a portion of said first fold, and a third fold lying between the first and second folds. The second web includes a first fold underlying the first fold of the first web, a second fold overlying the second fold of the first web and a third fold underlying the third fold of the first web. A folding device for forming a web includes a first, second and third folding edge extending from a first junction and formed in a first plane, a fourth folding edge extending from the first junction out of the first plane, a fifth and sixth folding edge extending from a second junction formed in a second plane parallel to and above the first plane, and a seventh folding edge extending from the second junction out of the second plane. The fifth folding edge crosses over the third folding edge in a spaced apart relationship. A method for forming a sheet material web includes drawing the web over the second, third and fourth folding edges to form the first fold, drawing the web over the first folding edge to form a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.