Turbomolecular pump lubricant supply systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 7, 2021
Grant Date -
Jul 4, 2019
app pub date -
Jul 31, 2017
filing date -
Aug 4, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A turbomolecular pump has a housing, a rotor shaft supported by a plurality of bearings for rotation relative to the housing about an axis of rotation, a deflector, a lubricant supply system and a lubricant transfer device provided on the rotor shaft. The bearings include a rolling bearing that receives lubricant from the lubricant supply system to via the lubricant transfer device. The rolling bearing is disposed intermediate the lubricant transfer device and the deflector and the deflector is configured to deflect lubricant that passes through the rolling bearing outwardly with respect to the rotor shaft.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- F16N Class
- 185 Applications Filed
- 137 Patents Issued To-Date
- 74.06 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16N Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 7, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 7, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 7, 2033 |
