Procedure and apparatus for perforating a product in sheets and perforated product obtained like this
US5054349A · kind A · utility
6Cited by
4References
9Claims
0Family size
Inventor
Key dates
| Filing date | Mar 21, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Mar 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/364
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns a fixed injector which sends water under pressure to a nonwoven sheet, or workpiece. The injector directs pressurized water through a perforated cylinder, which directs water through a perforated sheet onto a workpiece. This apparatus provides micro-perforation or cuts, of diverse materials, including those of plastic and supple sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.