Apparatus for indicating the need for maintenance work on an int

Details Apparatus for indicating the need for maintenance work on an int Apparatus for indicating the need for maintenance work on an int

1982-07-07

1984-09-25

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

73119A, G01M 1500

Patent

active

044729642

ABSTRACT:
A device for indicating the need for maintenance work on an automobile engine is equipped, in the manner of an electric clock, with a frequency reducer (2), an amplifier (3), a stepping motor (4) and a clock movement (5). The frequency reducer (2), however, does not receive its pulses from a quartz oscillator, as in the case of a quartz clock, but from a pulse generator (6) of a revolution indicator (7). The pulse generator (6) can, of course, also be a separate component which is intended exclusively for the device.

REFERENCES:
patent: 2533638 (1950-12-01), Norris
patent: 3758756 (1973-09-01), Johns
patent: 3903736 (1975-09-01), Bissett et al.
patent: 3965669 (1976-06-01), Larson et al.
patent: 4012948 (1977-03-01), Kuno et al.
patent: 4253330 (1981-03-01), Kato
patent: 4317106 (1982-02-01), Huber

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