Audible low-fuel alarm for propane fuel tank

Details Audible low-fuel alarm for propane fuel tank Audible low-fuel alarm for propane fuel tank

1985-12-04

1987-08-18

Levy, Stewart J.

Communications: electrical

Condition responsive indicating system

Specific condition

73307, 73317, 137558, G01F 2312

Patent

active

046880283

ABSTRACT:
An audible low-fuel alarm (50) for a pressurized propane fuel tank is disclosed. A Hall-effect sensor (57) is mounted in relation to a magnet (35) which is rotated in response to the level of fuel within the propane tank. When magnet (35) is rotated to a position to indicate a low fuel condition, the Hall-effect sensor (57) activates a buzzer 53. A mercury switch (55) prevents false low fuel alarms and conserves battery power during inflation of the balloon envelope.

REFERENCES:
patent: 2536805 (1951-01-01), Hansen, Jr.
patent: 3339519 (1967-09-01), Taylor et al.
patent: 4507961 (1985-04-01), Stradella

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