Time totaling meter and unit of the same for internal combustion

Horology: time measuring systems or devices – Controlled by a disparate device – Engine

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368 8, 368 9, G04F 800, G04F 1000

Patent

active

056173733

ABSTRACT:
A time totaling meter and an unit thereof for internal combustion engines comprising a part of an ignition device to lead ignition pulses toward outside of the ignition device, pulse induction means to electromagnetically induce said ignition pulses, waveform shaping means to shape this electro-magnetically induced pulses, and judging means to determine whether this waveform shaped output pulses are derived from operation of the internal combustion engine or not, and capable of counting and storing total operation time of the internal combustion engine from initial operation thereof to said count memory means based on said output pulses selected by said judging means and displaying this counted operation time on display means.

REFERENCES:
patent: 3854281 (1974-12-01), Reichect
patent: 3948039 (1976-04-01), Leveraus
patent: 3965669 (1976-06-01), Larson et al.
patent: 4181883 (1980-01-01), Beeghly et al.
patent: 4725996 (1988-02-01), Marble et al.
patent: 4999820 (1991-03-01), Hetzel
patent: 5416814 (1995-05-01), Gibbs et al.

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