Fluid level sensor

Details Fluid level sensor Fluid level sensor

2006-02-07

2006-02-07

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

C073S29000R, C073S001820, C073S001830, C073S001860

Reexamination Certificate

active

06993967

ABSTRACT:
An ultrasonic fluid level sensor for use in a fluid container, preferably a vehicle fuel tank. The fluid level sensor generally includes a single transceiver having measurement and reference sections, an impedance layer and a housing having a reference element and an aperture. The measurement and reference sections are independent ultrasonic transceivers that are disk-shaped and ring-shaped, respectively, and are generally concentric. The reference element is a ring-shaped portion of the housing that is axially spaced from the reference section at a known distance, and the aperture is a disk-shaped opening in the housing that is axially spaced from the measurement section. In operation, the sensor is able to provide signals to an electronic controller that enable the controller to determine a signal velocity calibrated measurement of the fluid level that is compensated for temperature, fluid composition, and other velocity affecting factors.

REFERENCES:
patent: 2753542 (1956-07-01), Rod et al.
patent: 3900811 (1975-08-01), Kurtz et al.
patent: 4090407 (1978-05-01), Shuler et al.
patent: 4130018 (1978-12-01), Adams et al.
patent: 4241611 (1980-12-01), Specht et al.
patent: 4769793 (1988-09-01), Kniest et al.
patent: 5095748 (1992-03-01), Gregory et al.
patent: 5121340 (1992-06-01), Campbell et al.
patent: 5226320 (1993-07-01), Dages et al.
patent: 5309763 (1994-05-01), Sinclair
patent: 5664456 (1997-09-01), Eckert
patent: 5737963 (1998-04-01), Eckert et al.
patent: 5856953 (1999-01-01), Durkee
patent: 6032535 (2000-03-01), Fischer et al.
patent: 6427532 (2002-08-01), Keller
patent: 6588269 (2003-07-01), Benghezal 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-3643153