Float activated gauge

Details Float activated gauge Float activated gauge

1992-10-14

1993-07-06

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Float

200 84C, 340624, G01K 562, G05D 2308

Patent

active

052243796

ABSTRACT:
A gauge for indicating whether the level of a liquid, such as fuel or oil, in a tank has reached one or more preselected levels. A magnet is mounted in a stem attached atop a float which moves up and down with the rising and falling of the liquid level. When the magnet is adjacent an electrical switch housed in a sealed cover, the switch closes and connects an external power supply to a warning light. The float moves within a cylinder which has a small drain hole at the bottom and a vent near the top. Liquid moves into and out of the guide through the drain hole at a relatively slow rate and thereby eliminates intermittent closing and opening of the switch which would otherwise occur due to the sloshing of the liquid when the tank is in motion, such as when mounted in a vehicle.

REFERENCES:
patent: 3270158 (1966-08-01), Puster
patent: 3504316 (1970-03-01), Bekedam
patent: 3751614 (1973-08-01), Jones
patent: 3759286 (1973-09-01), Page
patent: 4441860 (1984-04-01), Tsujimoto
patent: 4879902 (1989-11-01), Loniello
patent: 4924703 (1990-05-01), White et al.
patent: 5035512 (1991-07-01), Tateishi et al.

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