Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1991-02-08
1992-08-04
Bertsch, Richard A.
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
417 40, 417411, 362 20, 362183, F04B 4906
Patent
active
051353598
ABSTRACT:
An emergency device for use in a dwelling or any similar place provided with a sump pump in the basement, in order to operate this sump pump and, if desired, to switch on some emergency light in the case of a failure of the main electric power source of this dwelling. The device includes a storage battery connected to the sump pump in such a manner as to operate it in the case of a failure of the main power source. It also includes a transformer-rectifier to permanently recharge the storage battery when the power source is in operation. It further includes external plugs connectable to the battery of an automotive vehicle parked near the dwelling with its motor running, in order to use this battery as a substitute for the indoor battery and thus allows the sump pump to continue to operate even when the storage battery indoors is down. Advantageously, the device may further include an additional circuit activated by relay to switch on some emergency lights inside the dwelling whenever there is a failure of the main power source.
REFERENCES:
patent: 3941507 (1976-03-01), Niedermeyer
patent: 4222711 (1980-09-01), Mayer
patent: 4349863 (1982-09-01), Petersen
patent: 4776766 (1988-10-01), Brent
Bertsch Richard A.
Scheuermann David W.
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