Running time meter for engine

Details Running time meter for engine Running time meter for engine

1990-01-05

1991-03-26

Miska, Vit W.

Horology: time measuring systems or devices

Controlled by a disparate device

Engine

368 8, 368 10, 368110, 368113, G04F 800, G04B 4700

Patent

active

050035185

ABSTRACT:
A compact and inexpensive meter for measuring and recording the time an engine driven apparatus has been running. The apparatus includes a signal generator such as a piezoelectric transducer which produces an electrical current when the engine driven apparatus is operating, a rectifier for converting the electrical current produced by said signal generator to direct current, a transistor for receiving the electrical current from the rectifier and switching on a stopwatch timing unit when the voltage received from the rectifier reaches a predetermined level.

REFERENCES:
patent: 1785724 (1930-12-01), Brant
patent: 1967157 (1934-07-01), Thornton-Norris
patent: 3948039 (1976-04-01), Leveraus
patent: 3965669 (1976-06-01), Larson et al.
patent: 4290128 (1981-09-01), Estabrook
patent: 4472964 (1984-09-01), Kluger
patent: 4624578 (1986-11-01), Green

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