Invention Grant
- Patent Title: Speed control
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Application No.: US14680947Application Date: 2015-04-07
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Publication No.: US10527042B2Publication Date: 2020-01-07
- Inventor: Robert W. Stiles, Jr. , Lars Hoffmann Berthelsen , Ronald B. Robol , Christopher Yahnker , Daniel J. Hruby , Kevin Murphy , Einar Kjartan Runarsson , Arne Fink Hansen , Florin Lungeanu , Peter Westermann-Rasmussen
- Applicant: Pentair Water Pool and Spa, Inc. , Danfoss Power Electronics A/S
- Applicant Address: US NC Cary DK Graasten
- Assignee: Pentair Water Pool and Spa, Inc.,Danfoss Power Electronics A/S
- Current Assignee: Pentair Water Pool and Spa, Inc.,Danfoss Power Electronics A/S
- Current Assignee Address: US NC Cary DK Graasten
- Agency: Quarles & Brady LLP
- Main IPC: F04B49/20
- IPC: F04B49/20 ; F04D15/00 ; F04D27/00 ; F04D13/06 ; E04H4/12 ; F04B49/06

Abstract:
A pumping system for moving water of a swimming pool includes a water pump, an infinitely variable speed motor, and an arrangement for operating the motor. In one example, the pumping system includes a memory configured to store a plurality of retained speed values, an arrangement for providing a plurality of retained speed values to the memory, and an arrangement for reading a selected one of the plurality of retained speed values from the memory. In addition or alternatively, the pumping system includes a storage medium for digitally storing a plurality of pre-established motor speed values and an arrangement for receiving input from a user to select one of the pre-established motor speeds. In addition or alternatively, the pumping system further includes an arrangement for restarting operation of the motor at a previously selected speed value when power supplied to the motor is interrupted during operation of the motor. A method for controlling the pumping system is also provided.
Public/Granted literature
- US20150211531A1 Speed Control Public/Granted day:2015-07-30
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