Switch for bilge and sump/pump with automatic float control

Details Switch for bilge and sump/pump with automatic float control Switch for bilge and sump/pump with automatic float control

1995-08-15

1997-04-22

Thorpe, Timothy

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

F04B 4904

Patent

active

056224770

ABSTRACT:
An improved switch for bilge and sump pumps which allows a manual override switch to be connected in the positive side of the power supply and which uses a reed switch actuated Darlington type circuit both of which are protected from reversed polarity connection by a current limiting resistor which is buffered with the protective resistor.

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