Bearing assembly having labyrinth seal with pumping action
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 13, 2017
Grant Date -
Dec 1, 2016
app pub date -
May 29, 2015
filing date -
May 29, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A bearing assembly includes a housing having an interior cavity, an opening, and an inward facing seal mounting surface. The assembly includes a bearing and a shaft mounted in the bearing for rotation about a central axis. The assembly includes a seal positioned axially between the interior cavity and the exterior of the housing to inhibit contaminants from entering the housing and damaging the bearing. The seal has a bearing side, an opening side, and a gap surface facing a corresponding surface that is either an outward facing surface of the shaft or thee inward facing seal mounting surface of the housing. The gap surface is spaced from the corresponding surface by a clearance gap. The width of the clearance gap increases from the bearing side to the opening side to direct fluid in the clearance gap away from the interior cavity as the shaft rotates.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- F16C Class
- 1352 Applications Filed
- 1092 Patents Issued To-Date
- 80.77 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16C Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 13, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 13, 2028 |
