Hydrostatic transmission with spool valve driven motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 2018
Issued Date -
N/A
app pub date -
Apr 14, 2015
filing date -
May 7, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A center section/motor sub-assembly for use in a hydrostatic transmission includes a center section having a pump running face for interfacing with a pump and a motor running face for interfacing with a motor, and a bore extending laterally through the center section from the motor running face. A spool valve is received in the bore and includes a fluid pathway for providing fluid communication between the pump running face and the motor running face. The sub-assembly further includes a motor having a rotor and a motor stator secured to the center section adjacent to the motor running face in a manner that permits rotation of the rotor. The center section is configured for the hydraulic separating forces of the motor to be reacted only into the center section. A hydrostatic transmission includes the sub-assembly enclosed by a housing, in combination with a pump and output shaft.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- B60K Class
- 2427 Applications Filed
- 1969 Patents Issued To-Date
- 81.13 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 13 Citation Count
- B60K Class
- 91.75 % 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 13, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 13, 2029 |
