Laser tail cutter assembly
US5767481A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1995 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Sep 18, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F7/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A machine or making a fiber web such as paper with the fiber web having a running direction in the machine, the machine including a dryer section which removes moisture from the fiber web and a laser cutter assembly disposed adjacent the fiber web that generates a laser beam for cutting the fiber web. The laser cutter assembly includes a conduit that the laser beam passes through. The conduit includes a fluid inlet for receiving a fluid extinguishant such as carbon dioxide gas. A heat sink is used to prevent the laser through the conduit when the fluid extinguishant is absent in the conduit. The fluid extinguishant emitting from an outlet of the conduit inhibits generation of a flame caused by the cutting of the fiber web by the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.