Liquid volume indicator

Details Liquid volume indicator Liquid volume indicator

1979-04-16

1983-11-22

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

73298, 73303, 200 83Z, 340614, B60Q 100, G01F 2300, G08B 2100

Patent

active

044172320

ABSTRACT:
A sensing device for determining the amount of liquid in an oil crankcase of a vehicle. A hollow dipstick, closed at one end and having a metering hole therein, is inserted into the crankcase of a car. The other end of the dipstick is connected by flexible tubing to a suction bellows and a sensing bellows in a sensing module. The suction bellows and sensing bellows are linked together and to the dipstick by branches of a T-tubing. An opposed end of the suction bellows is connected to a piston of a solenoid. The sensing bellows is mounted to move in response to the amount of oil suctioned into the dipstick. An electrical circuit is formed between a push-button, a solenoid, ground and the car battery, such that when the push-button is closed, the solenoid becomes excited, drawing in the piston to thereby expand the suction bellows. Expansion of the suction bellows draws oil into the dipstick. An electrical circuit coupled to the sensing bellows indicates if oil is sampled by the dipstick.

REFERENCES:
patent: 1560343 (1925-11-01), Foulk
patent: 2043877 (1936-06-01), Ashworth
patent: 2547526 (1951-04-01), Hilliard
patent: 2671893 (1954-03-01), Van Scoy et al.
patent: 2724101 (1955-11-01), Hallman
patent: 2728070 (1955-12-01), Kelly
patent: 3132331 (1964-05-01), Boddy
patent: 3333259 (1967-07-01), Carothers, Jr.

Affiliated with

Also associated with

Rating

Liquid volume indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid volume indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid volume indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1817354