Blower assembly for a pulsed laser system incorporating ceramic bearings
US6208675A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A blower assembly for circulating gases in a laser chamber. The blower assembly includes a driving assembly operatively engaged to a drive side shaft for rotating a fan assembly. A first bearing assembly supports the drive side shaft. The blower assembly may further include an idle side shaft for supporting the fan assembly and a second bearing assembly circumscribing the idle side shaft. The driving assembly includes a motor disposed over a rotor. The fan assembly includes a pair of hubs supporting a plurality of blades. The first and second bearing assemblies comprise a ceramic compound, such as silicon nitride (Si.sub.3 N.sub.4), and are lubricated with a synthetic oil, such as perfluoropolyalkylether (PFPE).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.