Pendent liquid level alarm apparatus

Details Pendent liquid level alarm apparatus Pendent liquid level alarm apparatus

1986-09-08

1988-09-13

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

73308, 73DIG5, 200 84C, G08B 2100

Patent

active

047712724

ABSTRACT:
A liquid level electrical alarm apparatus includes a perforated hollow cylindrical sensor housing having upper and lower cup-shaped caps. A cylindrical float contained within the sensor housing contains a permanent magnet near its upper end, effective in closing the contact bars of a reed switch element mounted in the upper cap when the float rises a pre-determined level. The sensor body is suspended by a flexible electrical cable connected to the upper cap. Means are provided for adjusting the length of cable from which the sensor is suspended into a vessel, thereby permitting adjustment of the liquid level which trips the alarm.

REFERENCES:
patent: 3204230 (1965-08-01), Hosford, Jr.
patent: 3377537 (1968-04-01), Brailsford
patent: 3849771 (1974-11-01), Applin
patent: 4080985 (1978-03-01), Eagle
patent: 4255747 (1981-03-01), Bunia
patent: 4279078 (1981-07-01), Hinshaw et al.
patent: 4442405 (1984-04-01), Andrejasich et al.

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