Altitude monitor

Details Altitude monitor Altitude monitor

1981-08-14

1984-06-05

Groody, James J.

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

200 83N, 200 83S, 73387, 340626, G08B 2300, G08B 2100, G01L 712

Patent

active

044531540

ABSTRACT:
An apparatus to continuously monitor a preset altitude for a pilot of an aircraft. It senses a change in altitude and an audible as well as a visible alarm tells the pilot that he has deviated from his preset altitude by a given height. Increase in altitude is signaled by a high pitch tone and by a yellow light while a decrease in altitude is signaled by a low pitch tone and a red light. The invention can also be used to warn a small boat operator of a pressure drop.

REFERENCES:
patent: 3281783 (1966-10-01), Adams
patent: 3392379 (1968-07-01), Thomason et al.
patent: 3829640 (1974-08-01), Taylor
patent: 3852711 (1974-12-01), Greene
patent: 3911393 (1975-10-01), Biggs

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