Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Reexamination Certificate
2011-08-02
2011-08-02
Kramer, Devon C (Department: 3746)
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
C417S063000, C004S509000
Reexamination Certificate
active
07988425
ABSTRACT:
A pump and alarm control promotes water safety and prevents entrapment in swimming pools, spas, and water features, such as fountains and waterfalls. The pump and alarm control monitors the vacuum on the influent side of a pump for the pool, spa and/or water feature and a two speed pump for a spa and automatically detects blockages in the pool, spa and/or water feature drains. The pump and alarm control is capable of detecting entrapment and blockages in different and distinct normal pressure operating conditions. Upon detecting a blockage the pump and alarm control shuts down pump operations and activates audible and visual alarms.
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Creighton Wray James
Jacobs Todd D
Kramer Devon C
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