Hybrid float switch

Details Hybrid float switch Hybrid float switch

1987-09-17

1989-02-14

Tolin, Gerald P.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

73308, 340624, 200 84C, 417 40, H01H 3518

Patent

active

048050660

ABSTRACT:
A combination hybrid float switch comprising float support means, float support means including a top and a bottom and an internal tube, the internal tube being sealed with respect to a liquid encountering the float support means. A float means is slidably positioned about the internal tube, the float means including a magnet means, the float means being responsive to the level of the liquid. A circuit board means is positioned within the internal tube and includes a plurality of magnetic reed switches. The reed switches are mounted upon the circuit board, the plurality including a first enable switch, second pump switch and a third alarm switch. The pump switch and the alarm switch are physically aligned in a parallel position above the enable switch, the enable switch and the alarm switch each being modified with one shortened lead, thereby modifying the reaction to a magnetic field. the modified reeds eliminate an otherwise conventionally act of state. The magnet means actuates the enable switch, the pump switch, and the alarm switch, respectively, as the float rises in response to the liquid. The plurality of reed switches provides an off state, a pump active state, and an alarm active state, in sequence. Also included is a pump circuit means an an alarm circuit means, which are responsive to the pump active state and the alarm active state.

REFERENCES:
patent: 3646293 (1972-02-01), Howard
patent: 3982087 (1976-09-01), Bachman
patent: 4015226 (1977-03-01), Stomma
patent: 4186419 (1980-01-01), Sims
patent: 4227236 (1980-10-01), Kubler

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