Flow control
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United States of America Patent
Stats
-
Oct 3, 2017
Issued Date -
N/A
app pub date -
Jul 1, 2014
filing date -
Aug 26, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pumping system for at least one aquatic application comprises a motor coupled to a pump and a controller in communication with the motor. The controller may be adapted to determine a first motor speed, determine a present flow rate using curves of speed versus flow rate for discrete power consumptions, generate a difference value between the present flow rate and a reference flow rate, and/or drive the motor at a second motor speed based on the difference value until reaching a steady state condition.
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 17 Citation Count
- F04B Class
- 93.04 % this patent is cited more than
- 8 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 | Apr 3, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 3, 2029 |
