Sump pump system and pressure responsive switch assembly therefo

Details Sump pump system and pressure responsive switch assembly therefo Sump pump system and pressure responsive switch assembly therefo

1972-12-15

1976-11-16

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

417 38, 417 44, F04B 4900

Patent

active

039921301

ABSTRACT:
A sump pump system includes a remote pressure responsive switch assembly designed for a wall plug and having a plug in connection for the pump motor cord, the pressure responsive switch assembly also having an air pressure connection to the sump pump for actuating the switch in response to a rise in level of water around the pump.

REFERENCES:
patent: 2673901 (1954-03-01), Kountz
patent: 3091111 (1963-05-01), Cruse et al.
patent: 3234881 (1966-02-01), Ekey
patent: 3656866 (1972-04-01), Hine, Jr. et al.
patent: 3728500 (1973-04-01), Ingram

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