Portable liquid level detector

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S606000, C340S607000, C340S608000, C340S612000, C340S618000, C073S335110

Reexamination Certificate

active

07091868

ABSTRACT:
A portable liquid level detector. The detector comprises a portable casing, a power supply unit disposed in the portable casing, a sensing device coupled to the power supply unit to sense a capacitance within a container and to output a enable signal when a difference in the capacitance is detected, a light emission device coupled to the sensing unit that illuminates after receiving the enable signal, and an alarm device coupled to the sensing unit that sounds after receiving the enable signal.

REFERENCES:
patent: 3935739 (1976-02-01), Ells
patent: 4799174 (1989-01-01), Kramer et al.
patent: 4918426 (1990-04-01), Butts et al.
patent: 5017909 (1991-05-01), Goekler
patent: 5166667 (1992-11-01), Jen
patent: 5699049 (1997-12-01), Difiore
patent: 5745377 (1998-04-01), Power et al.
patent: 5832772 (1998-11-01), McEwan
patent: 6362632 (2002-03-01), Livingston
patent: 2003/0019367 (2003-01-01), Fogagnolo et al.

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