Measuring and testing – Liquid level or depth gauge
Patent
1991-01-07
1992-02-04
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
340621, 367908, G01F 2328
Patent
active
050850776
ABSTRACT:
An ultrasonic liquid level detector mounted in a fill pipe cap. The ultrasonic detector mounted in a fill pipe cap (10) is used in determining a level and/or the volume of a liquid (5) stored in an underground storage tank (20). The fill pipe cap contains an ultrasonic ranging unit (50) that measures a time, T.sub.L, required for an ultrasonic pulse to travel round trip between an ultrasonic transducer/receiver (54) and the surface of the liquid in the tank. A reference reflector (25) disposed within a fill pipe (30) is used in determining a reference time, T.sub.R, that is included in a non-linear expression, e.sup..alpha. .multidot.T.sub.L.sup..beta..sbsp.1 .multidot.T.sub.R.sup..beta..sbsp.2, in order to compute the level of liquid in the storage tank. The terms e.sup..alpha., .beta..sub.1, and .beta..sub.2 comprise a correction for errors in the round-trip times T.sub.L and T.sub.R caused by a non-uniform vapor density of the liquid along the path traveled by the ultrasonic pulses.
REFERENCES:
patent: 2753542 (1956-07-01), Rod et al.
patent: 3123797 (1964-03-01), Ehrman
patent: 3184969 (1965-05-01), Bolton
patent: 3290490 (1966-12-01), Auer, Jr.
patent: 3394589 (1968-07-01), Tomioka
patent: 3656134 (1972-04-01), Brown
patent: 3745829 (1973-07-01), Franchi
patent: 3834233 (1974-09-01), Willis et al.
patent: 3996798 (1976-12-01), Vander Heyden
patent: 4000650 (1977-01-01), Snyder
patent: 4090407 (1978-05-01), Shuler et al.
patent: 4121094 (1978-10-01), DiVito et al.
patent: 4130018 (1978-12-01), Adams et al.
patent: 4145914 (1979-03-01), Newman
patent: 4146869 (1979-03-01), Snyder
patent: 4159646 (1979-07-01), Paulsen et al.
patent: 4170144 (1979-10-01), Scott
patent: 4183007 (1980-01-01), Baird
patent: 4210967 (1980-07-01), Ingram
patent: 4210969 (1980-07-01), Massa
patent: 4221004 (1980-09-01), Combs et al.
patent: 4229798 (1980-10-01), Rosie et al.
patent: 4264788 (1981-04-01), Keidel et al.
patent: 4305283 (1981-12-01), Redding
patent: 4487065 (1984-12-01), Carlin et al.
patent: 4513616 (1985-04-01), Bezard et al.
patent: 4523460 (1985-06-01), Strickler et al.
patent: 4535627 (1985-08-01), Prost et al.
patent: 4572253 (1986-02-01), Farmer et al.
patent: 4578997 (1986-04-01), Soltz
patent: 4596144 (1986-06-01), Panton et al.
patent: 4599892 (1986-07-01), Doshi
patent: 4675660 (1987-06-01), Boscolo
patent: 4675854 (1987-06-01), Lau
patent: 4700569 (1987-10-01), Michalski et al.
patent: 4715226 (1987-12-01), Dorr
patent: 4765186 (1988-08-01), Dieulesaint et al.
patent: 4770038 (1988-09-01), Zuckerwar et al.
patent: 4777821 (1988-10-01), Gerve
patent: 4785664 (1988-11-01), Reebs
patent: 4787407 (1988-11-01), Vogel
patent: 4805453 (1989-02-01), Haynes
patent: 4815323 (1989-03-01), Ellinger et al.
patent: 4821569 (1989-04-01), Soltz
patent: 4841770 (1989-06-01), Davies
patent: 4852054 (1989-07-01), Mastandrea
patent: 4853694 (1989-08-01), Tomecek
patent: 4869287 (1989-09-01), Pepper et al.
patent: 4896535 (1990-01-01), Duckart et al.
patent: 4901245 (1990-02-01), Olson et al.
patent: 4909080 (1990-03-01), Kikuta et al.
Numata Jerauld T.
Stapleton Charles E.
Capscan Sales Incorporate
Yasich Daniel M.
LandOfFree
Ultrasonic liquid measuring device for use in storage tanks cont does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic liquid measuring device for use in storage tanks cont, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic liquid measuring device for use in storage tanks cont will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-341470