System and method for transporting and clamping flexible film structures
US5957360A · kind A · utility
4Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
One or more porous air film rolls are used, in a system to support a flexible web during movement of the web, and selectively provide either compliant or rigid clamping of the web while performing processing operations on the web at a work station. The present invention is particularly suitable for punching holes on-the-fly, in both "X" and "Y" directions, in a flexible polyamide film. Up to a four-fold increase in punch tool productivity is provided by the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.