Apparatus for evacuating air from curing area of UV lamps for fiber-like substrates
US5942020A · kind A · utility
7Cited by
14References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Jun 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/56
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a device for blocking the ingress of air on the surface of a moving member such as an optical fiber. The blocking of air is achieved by the establishment of a low pressure zone at the entry point of the fiber, the lower pressure zone being created by the injection of an inert gas in a direction opposite the direction of travel of the fiber. The invention is particularly useful in preventing the ingress of air into a UV curing apparatus for curing the ink on an optical fiber. There is also provided a method for reducing such ingress of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.