Dual timing event stopwatch

Details Dual timing event stopwatch Dual timing event stopwatch

1984-02-17

1985-03-19

Miska, Vit W.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

368113, G04F 800

Patent

active

045055955

ABSTRACT:
A dual timing event stopwatch incorporates a primary timer triggered by a remote light emission detected by an optical pick-up sensor, and a secondary timer manually triggered by a user-actuated switch. The user may select between a first operating mode wherein both timers are concurrently stopped in their interval counted cycles by a manually operated switch, and a second operating mode wherein the second timer is terminated by the manual switch and the first timer is terminated by a second remote light emission detected by the optical pick-up sensor.

REFERENCES:
patent: 3846704 (1974-11-01), Bessette
patent: 4255805 (1981-03-01), Jaunin
patent: 4456383 (1984-06-01), Speckhart et al.

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