Apparatus for forming a corrugated substrate
US5792307A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1744
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An apparatus for forming a corrugated substrate comprises a first assembly for advancing liner sheets including a corrugated medium and facing sheets and a second assembly for advancing fluting sheets. Each fluting sheet has bend surfaces along its top and bottom sides. An applicator applies adhesive along at least one of the top and bottom sides of the fluting sheets. The first assembly and second assembly advance the liner sheets and fluting sheets into contact with one another along the side of the fluting sheet having the adhesive. The fluting sheets are secured to the liner sheets to form a layered article having an upper and lower surface. A means for correlating operates the first assembly, second assembly, and applicator so that in each cycle of operation the layered article adheres to at least an additional layered article in succession. The correlating means preferably operates such that another one of the liner sheets adheres along an exposed one of the top and bottom sides of one of the fluting sheets of the layered article corresponding to the upper and lower surface of the layered article, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.