Method and mechanism for producing cushioning dunnage product
US4750896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1985 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Oct 28, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/967
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A mechanism and method for producing relatively low density pad-like cushioning dunnage product from sheet-like stock material. The mechanism takes the sheet-like stock material from a multi-ply roll thereof and changes it into a pad-like cushioning dunnage product having lateral pillow-like portions connected together along the generally central portion of the product. A separating mechanism for separating the sheets of stock material as they move from the stock roll toward the forming frame and the converging member is provided, together with a transversely extending roller disposed ahead of the separating mechanism whereby the point of commencement of entry of the multi-ply sheet-like stock material toward the separating mechanism remains constant irrespective of the diameter of the stock roll. An alternate, multi-ply stock roll comprising a thicker gauge but lesser width web with a plurality of wider webs or sheets is disclosed. The idea is to generally improve the construction of the dunnage producing mechanism, and to improve its operation as well as to provide a pad-like dunnage product possessing substantial resiliency per unit volume, and which is securely attached along t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.