Double nut ball screw capable of sensing preload
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 20, 2018
Grant Date -
Jun 8, 2017
app pub date -
Dec 2, 2015
filing date -
Dec 2, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A double nut ball screw capable of sensing preload includes a screw rod, two nuts, a connection key, multiple balls, a deformable annular platform having a U-shaped cross section with a bottom wall portion and two sidewall portions integrally connected with two opposite lateral sides of the bottom wall portion, and an annular force sensor mounted on the bottom wall portion of the deformable annular platform and located between the two sidewall portions. The deformable annular platform has a protruded portion located at the outer surface of the bottom wall portion opposite to the force sensor, and is disposed in the gap between the two nuts and wedged between two mating surfaces of the two nuts with the distal ends of the sidewall portions abutted against the mating surface of one nut and the protruded portion abutted against the mating surface of the other nut.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F16H Class
- 37.20 % this patent is cited more than
- 7 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 | Sep 20, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 20, 2029 |
