Device for treating sheet-like material using pressurized water jets
US6668436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for treating sheet-like material using water jets/needles. The device comprises a pressurize water supply body consisting of a feed chamber extending along the entire length of the body and inside which pressurized water is guided through a filter, and a distribution area distributing pressurized water along the entire length of treatment. The distribution area includes a plate (7) which is provided with microperforations, whereby the holes thereof define water needles which are directed against the surface of the material which is to be treated. The invention is characterized in that the microperforations (15) are provided inside inserts (13) which are made of a hard material. The inserts are set inside pre-made hoes (12) in the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.