Monitoring system for aircraft master switch

Details Monitoring system for aircraft master switch Monitoring system for aircraft master switch

1977-01-07

1978-11-28

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular system function

340654, 340 27R, G08B 2100

Patent

active

041278470

ABSTRACT:
An electrical system for use on aircraft and including a manually operated master switch for connecting a d.c. power supply to a supply bus that feeds electrical equipment on the aircraft. Energized by the supply bus is a monitor having a delayed output that activates an alarm indicating a closed condition of the master switch. The monitor is disabled by a sensing circuit that responds to the presence of electrical pulses generated on the bus by the aircraft's alternator. Upon a failure to open the master switch after the aircraft's engine has been stopped, the absence of alternator charging pulses on the bus prevents the sensor from de-activating the monitor which after a predetermined time delay energizes the alarm to warn the pilot of the condition that would result in discharging of the battery.

REFERENCES:
patent: 742547 (1903-10-01), Wright et al.
patent: 1649011 (1927-11-01), Bakken
patent: 1805999 (1931-05-01), Schleicher et al.
patent: 2662942 (1953-12-01), Winkler
patent: 2788517 (1957-04-01), Smoot et al.
patent: 3200390 (1965-08-01), Eckert, Jr. et al.
patent: 3349386 (1967-10-01), Zug
patent: 3746880 (1973-07-01), Fritani et al.
patent: 3794989 (1974-02-01), Manley et al.
patent: 3836901 (1974-09-01), Matto et al.
patent: 3999175 (1976-12-01), Thibodean

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