Proportional pressure controller with isolation valve assembly
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United States of America Patent
Stats
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Feb 24, 2016
filing date -
Feb 24, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A proportional pressure controller includes a body having inlet, outlet, and exhaust ports. A fill valve communicates with pressurized fluid in the inlet port. A dump valve communicates with pressurized fluid from the fill valve. An inlet poppet valve opens by pressurized fluid through the fill valve. An exhaust poppet valve when closed isolates pressurized fluid from the exhaust port. An outlet flow passage communicates with pressurized fluid when the inlet poppet valve is open, and communicates with the outlet port and an exhaust/outlet common passage. An isolation valve assembly selectively isolates fluid flow to and from the inlet port or the exhaust port to achieve a zero pressure condition.
First Claim
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Family
- No Family data available.
International Classification(s)
- 2016 Application Filing Year
- F15B Class
- 724 Applications Filed
- 505 Patents Issued To-Date
- 69.76 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F15B Class
- 38.83 % 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 | Aug 27, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 27, 2029 |
