Apparatus and method for deforming sheet material
US7198742B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jul 30, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2059/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Presented herein is an apparatus and method for deforming a sheet material. The apparatus includes a deforming roller having a plurality of circumferential depressions and at least one cord in rotational engagement with the roller and adapted to press the material into the depressions. The method includes the steps of providing a rotating deforming roller having circumferential depressions, at least one cord aligned to fit within the depressions and at least one sheet material, and feeding the material in a first direction between the roller and cord and deforming the material by pressing it at least partially into the depressions with the cord. The deformation may include stretching or extending the material, and/or aperturing the material, and/or producing topographical shapes or surface features in the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.