Measuring and testing – With fluid pressure – Porosity or permeability
Patent
1991-04-10
1992-10-27
Williams, Hezron E.
Measuring and testing
With fluid pressure
Porosity or permeability
G01N 1508
Patent
active
051579596
ABSTRACT:
A ponded infiltrometer including a bubble chamber formed in a base that supports a liquid reservoir. A single valve interposed in a channel between the bubble chamber and the reservoir controls both air flow into the device and water flow out of the device. A selectively movable bubble tube communicates between the bubble chamber and the atmosphere, and the position of the lower end of the bubble tube precisely regulates the amount of ponded water in the containment ring which contacts a section of soil. The base and attached reservoir are supported and secured above the containment ring by an adjustable tripod.
REFERENCES:
patent: 3898872 (1972-08-01), Skaling et al.
patent: 4478069 (1984-10-01), Zuckerwar
patent: 4520657 (1985-06-01), Marthaler
patent: 4773254 (1988-09-01), Shen
patent: 4779200 (1988-10-01), Bradbury et al.
patent: 4843878 (1989-07-01), Purfurst et al.
patent: 4884436 (1989-12-01), Ankeny et al.
patent: 4890487 (1990-01-01), Dussan et al.
patent: 4956993 (1990-09-01), Mehler
Matula S. & Dirksen C. "Automated Regulating & Recording System for Cylinder Infiltrometers", pp. 299-302; Soil Sci Soc Am J., vol. 53, Jan.-Feb. 1989.
Bouwer, Herman; "Intake Rate: Cylinder Infiltrometer", pp. 825-843; Methods of Soil Analysis, Part I.
Physical & Mineralogical Methods, 1986 Agronomy Monograph No. 9, (2nd ed.).
Ankeny Mark D.
Kaspar Tom
Prieksat Mark
Brock Michael
Iowa State University & Research Foundation, Inc.
The United States of America as represented by the United States
Williams Hezron E.
LandOfFree
Automated ponded infiltrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automated ponded infiltrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated ponded infiltrometer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-899384