Fluid reservoir with fluid-level sensor

Details Fluid reservoir with fluid-level sensor Fluid reservoir with fluid-level sensor

1983-05-26

1985-02-19

Goldberg, E. A.

Electricity: circuit makers and breakers

Float

Float and pressure

200 84R, 116109, 116110, 73308, 340515, 340618, 340623, H01H 3518, G01F 100, G08B 2900, G08B 2100

Patent

active

045007616

ABSTRACT:
A fluid reservoir with a fluid-level sensor includes a manual testing device consisting of two separate but cooperative rods. The fluid-level sensor consists of a float within the reservoir and a reed switch which is closed to cause a low fluid-level alarm when the float is lower than a predetermined level. The testing device serves to depress the float to below that level to ensure that the switch and the alarm are working. A first rod is supported by a filter mounted at the top of the reservoir. A second rod is supported by a flexible cover which fits over the top of the reservoir. The rods are coaxial and free to move downward far enough to push the float to below the above level. Having the two rods separable allows the cover to be removed easily without damaging the manual testing device.

REFERENCES:
patent: 743091 (1903-11-01), Loop
patent: 2202403 (1940-05-01), Sandberg
patent: 3167623 (1965-01-01), Kaleta
patent: 3942526 (1976-03-01), Wilder et al.
patent: 3947813 (1976-05-01), Uemura et al.
patent: 4037193 (1977-07-01), Uemura

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