Modular liquid level sensor having integral electronics

Details Modular liquid level sensor having integral electronics Modular liquid level sensor having integral electronics

1985-02-22

1987-03-31

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specified indicator structure

340 59, 340620, 340622, G08B 2100, B60Q 100

Patent

active

046546464

ABSTRACT:
A liquid level sensor is provided which includes a base assembly and a dipstick assembly. The base assembly includes an electronic printed circuit board assembly, electrical connections to both the dipstick assembly and a wiring harness, and a mounting assembly for securing it to an engine dipstick tube. The dipstick assembly includes a cap, a tube, and a sensor element. The cap is designed to provide the necessary keying and locking features to mate with the base assembly. The tube provides protection for lead wires which connect the sensing element to the printed circuit board assembly.

REFERENCES:
patent: 4283719 (1981-08-01), Williams et al.
patent: 4476714 (1984-10-01), Barry et al.
patent: 4506258 (1985-03-01), Charboneau et al.
patent: 4518956 (1985-05-01), Kitagawa et al.
Tarpley, R. W. et al., "Solid-State Automotive Liquid Level Sensing System", SAE publication 800127.

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