Drive shaft assembly for a downhole motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 2016
Grant Date -
Oct 9, 2014
app pub date -
Nov 15, 2013
filing date -
Apr 9, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A driveshaft assembly for a downhole motor including a driveshaft having a longitudinal axis, first and second ends, and a convex spherical bearing surface disposed at the first end configured to transfer axial loads. The assembly also includes a connection lug disposed at the driveshaft first end, extending circumferentially between first and second ends, and including a recess in the first end of the lug, the recess comprising a concave cylindrical surface concentrically disposed about a pivot axis oriented orthogonal to the longitudinal axis. The assembly also includes a torque transfer key disposed within the recess and having a central axis radially spaced from the pivot axis, a convex cylindrical surface concentrically disposed about the pivot axis, and a planar surface. The convex cylindrical surface of the key slidingly engages the concave cylindrical surface of the recess; and the pivot axis intersects the key.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- F16C Class
- 1081 Applications Filed
- 954 Patents Issued To-Date
- 88.26 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F16C Class
- 24.80 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 2, 2028 |
