Self contained flight duration measurement and recording apparat

Details Self contained flight duration measurement and recording apparat Self contained flight duration measurement and recording apparat

1997-04-17

1999-06-15

Miska, Vit

Horology: time measuring systems or devices

Combined with disparate device

368110, 473200, 473570, G04B 4700, G04F 800, A63B 5700, A63B 3700

Patent

active

059128640

ABSTRACT:
The self contained flight duration measurement and recording apparatus is designed to be affixed to or contained within an object that will experience a duration of flight. The apparatus will measure and display the elapsed time of the object's flight. A timing device is positioned in a housing. The timing device is activated by acceleration forces on the object and deactivated by the deceleration forces acting upon the object. The force sensing unit that controls the time is an electrical switch that closes momentarily when subjected to inertial changes. The switch has a central core surrounded by a coil, both of which are integrated into a circuit. As the device experiences acceleration or deceleration, the core will contact the coil which will turn on or turn off the timer. Switch sensitivity can be adjusted as necessary for the specific purposes of the device.

REFERENCES:
patent: 4775948 (1988-10-01), Dail et al.
patent: 5526326 (1996-06-01), Fekete et al.

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