Speed switch

Details Speed switch Speed switch

1980-06-11

1983-02-01

Krawczewicz, Stanley T.

Electricity: measuring and testing

Electrical speed measuring

Speed comparing means

123352, 318615, G01P 356

Patent

active

043718337

ABSTRACT:
A speed limiting indicating device for an internal combustion engine having an engine speed sensor providing a first signal indicative of engine speed, means responsive to said first signal for providing a speed limit signal indicative of said engine speed exceeding a predetermined speed limit, said speed limit signal means including a logic gate having its input connected to said first signal for providing said speed limit signal at said predetermined limit speed.

REFERENCES:
patent: 3588698 (1971-06-01), Ashcraft
patent: 3706035 (1972-12-01), Hoehn
patent: 4086888 (1978-05-01), Roberts
Marston, Solid-State Tach and Add-on Speed Alarm, Radio-Electronics, Apr. 1970, pp. 33-38.
Young, Precision Auto Tachometer Squelches Point Bounce, Electronics, Dec. 18, 1972, p. 106.

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