External condition responsive circuit producing alarm when frequ

Details External condition responsive circuit producing alarm when frequ External condition responsive circuit producing alarm when frequ

1976-04-14

1977-05-03

Heyman, John S.

Communications: electrical

Systems

Call station

340 60, 340240, 340248P, 340270, 307233R, 307359, 328138, 307273, 328129, 328 48, 328 1, G08B 2100

Patent

active

040217949

ABSTRACT:
Disclosed is a circuit for producing an alarm or shut down signal when the ratio of engine speed to engine oil pressure of a tractor engine becomes excessive. A frequency signal from a speed transducer is applied to a digital counter having a counting cycle varied in accordance with a voltage signal from a pressure transducer. The voltage signal is converted to current and used to determine the period of a one shot multivibrator.

REFERENCES:
patent: 3576496 (1971-04-01), Garagnon
patent: 3723964 (1973-03-01), Lace
patent: 3725794 (1973-04-01), Asplund
patent: 3735377 (1973-05-01), Kaufman
patent: 3792460 (1974-02-01), Ratz
patent: 3825744 (1974-07-01), Sibley et al.
patent: 3976989 (1976-08-01), Smith

Affiliated with

Also associated with

Rating

External condition responsive circuit producing alarm when frequ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with External condition responsive circuit producing alarm when frequ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External condition responsive circuit producing alarm when frequ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-348737