Hydraulic system with an unloading valve
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United States of America Patent
Stats
-
Jan 16, 2018
Issued Date -
N/A
app pub date -
Aug 29, 2014
filing date -
Aug 29, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A relief valve in a hydraulic system in a machine selectively sends pressurized oil to both a brake cooling apparatus and a cylinder used to hoist a load. A relief valve lowers pressure spikes in a brake cooling line by dumping fluid in a brake cooling line to tank responsive to a pressure spikes at the head end of the cylinder during hoisting or other transitions in the hydraulic system. Reducing the pressure spikes in the brake cooling line improves reliability of the brake cooling apparatus by protecting seals from undue stresses.
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International Classification(s)
- 2014 Application Filing Year
- B60T Class
- 877 Applications Filed
- 780 Patents Issued To-Date
- 88.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B60T Class
- 0 % 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 | Jul 16, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 16, 2029 |
