Nozzle of a device for contact—free treatment of a running fiber web
US10006709B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Jun 22, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/84
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A nozzle (10) for contact-free treatment of a running web, having a main frame (11) forming an outer part of the nozzle, and two side chambers (14, 15) on each of the longitudinal sides of the nozzle (10). The side chambers having openings (17A, 17B, 16A, 16B) for the air to blow toward a fiber web. A U-shaped air channel (20), through which the air is lead to the side chambers (14, 15), located between the side chambers (14, 15), having at least one opening (19, 18) on each side wall for leading the air into the side chambers (14, 15). A U-shaped inner part (13) which is movable by a mechanism (12) comprising a screw (21) and bushings (22) to at least partially open and close the opening (18, 19).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.