Variable speed hydromassage pump control

Details Variable speed hydromassage pump control Variable speed hydromassage pump control

1991-05-15

1992-09-29

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417 63, 45413, 318807, F04D 1500

Patent

active

051510170

ABSTRACT:
A control for a hydromassage pump motor and pump controls the speed thereof at one of a plurality of predetermined speeds. The control includes a high voltage motor power control which is connected to the AC lines and to the motor to affect energization thereof and a low voltage user interface. The low voltage user interface is powered by a low cost, small, limited energy power supply which limits the current to the user interface and which provides electrical isolation from the AC lines.

REFERENCES:
patent: 4093899 (1978-06-01), Denny
patent: 4370098 (1983-01-01), McClain et al.
patent: 4780917 (1988-11-01), Hancock
patent: 5005365 (1991-04-01), Lynch

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