Hydraulic actuation unit, particularly for controlling the starting and stopping of hydraulic motors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 21, 2017
Grant Date -
Oct 2, 2014
app pub date -
Nov 8, 2012
filing date -
Nov 9, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic actuation unit for controlling the starting and stopping of hydraulic motors includes a first main circuit and a second main circuit, a first recirculation circuit and a second recirculation circuit, a counterbalancing valve, which includes a shuttle, and a first discharge channel and a second discharge channel. The shuttle includes a first check valve and a second check valve. The first check valve includes at least one first flow control element that can move from an open position to a closure position. The second check valve includes at least one second flow control element that can move from an open position to a closure position. The first and second check valves respectively are provided with first damping means and second damping means in order to slow down the passage movement respectively of the first flow control element and of the second flow control element.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- F15B Class
- 455 Applications Filed
- 349 Patents Issued To-Date
- 76.71 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F15B Class
- 0 % this patent is cited more than
- 8 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 | Sep 21, 2028 |
