Fluid level sensor

Details Fluid level sensor Fluid level sensor

1989-01-09

1990-05-01

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Float

73313, 324251, G01B 2118, G01F 2362

Patent

active

049207970

ABSTRACT:
Disclosed is a fluid level sensor including a float mounted for movement in a mounting tube by a pair of spiral springs which are relatively rigid in a radial direction but relatively flexible in a longitudinal direction. At the top of the float a magnet is located and at the top of the mounting tube, a Hall effect device is located. As fluid enters the mounting tube through apertures in the lower portion, the float is gradually buoyed and moves closer to the Hall effect device changing its electrical output. Because the springs position the float inside the mounting tube, striction and hysteresis in conventional float supports is eliminated as well as wear between the float and the outer tube. Measurement range may be changed by changing float length and outer tube length as well as the spring constants themselves.

REFERENCES:
patent: 1613418 (1927-01-01), Uebelmesser
patent: 1723173 (1929-08-01), Huggins
patent: 2434425 (1948-01-01), Muller
patent: 3234792 (1966-02-01), Ririe et al.
patent: 3710613 (1973-01-01), Innes et al.
patent: 3992941 (1976-11-01), McGoldrick
patent: 4466284 (1984-08-01), Dumery
patent: 4793241 (1988-12-01), Mano et al.

Affiliated with

Also associated with

Rating

Fluid level sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-821796