Roller circle assembly for heavy machinery
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 11, 2017
Issued Date -
N/A
app pub date -
Feb 17, 2011
filing date -
Nov 16, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A roller circle assembly for heavy machinery includes an upper circular rail and a lower circular rail concentrically arranged about a central axis, and tapered rollers between the upper and lower rail. Each tapered roller includes a flange having an angled and convex flange contact surface that contacts the lower rail. The lower rail and/or the upper rail can include an angled surface configured for contact with the flange contact surface. The geometry of the rollers and the lower rail are configured to reduce the stresses applied to the rollers and lower rail due to contact between the flange contact surface and the angled surface.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- F16C Class
- 847 Applications Filed
- 628 Patents Issued To-Date
- 74.15 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F16C Class
- 32.16 % 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 | Jan 11, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 11, 2029 |
