Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1993-12-20
1996-11-26
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
G01N 122
Patent
active
055787690
ABSTRACT:
A subsurface sampling system which is designed to avoid disturbance of the sample point allows for repetitive insertion of a sampling means, such as a resin capsule, to allow repetitive sampling at a given location. Through variation in the design natural percolation and angled positioning may be accommodated. A shield and other means for diverting external substances such as ground water, rain, and the like are incorporated as well as a cap which integrates with a spring or other type of tension means to appropriately position the sampling means adjacent to the particular point desired to be sampled. A central access chamber and a variety of sampling passageways are provided for in applications in which repetitive-sampling at multiple sites is desired.
REFERENCES:
patent: 2793527 (1957-05-01), Turner, Jr. et al.
patent: 3374678 (1968-03-01), McGuckin
patent: 3774718 (1973-11-01), Igarashi et al.
patent: 3962915 (1976-06-01), Jezequel
patent: 4445788 (1984-06-01), Twersky et al.
patent: 4530236 (1985-07-01), Van den Berg
patent: 4543820 (1985-10-01), Handy et al.
patent: 4726239 (1988-02-01), Boggess et al.
patent: 4993874 (1991-02-01), Klusman
patent: 5009112 (1991-04-01), Lawrence et al.
patent: 5101917 (1992-04-01), Abdul et al.
patent: 5235863 (1993-08-01), Bailey et al.
Nitrate Movement Under Corn and Fallow Conditions, Long, F. L., and M. G. Huck, Soil Science of America Journal, Jul.-Aug. 1980, vol. 44, #4.
Minirhizotrons: A Summary of Methods and Instruments in Current Use, Brown, D. A., and D. R. Upchurch, American Society of Agronomy, 1987, Crop Science of Americal and Soil Science Society of America, 677 S. Segoe Rd., Madison, WI 53711 USA, Minirhizotron Observation Tubes: Methods and Applications for Measuring Rhizosphere Dynamics, ASA Special Publication No. 50.
Applications and Limitations of Rhizotrons and Minirhizotrons, McMichael, B. L. and H. M. Taylor, American Society of Agronomy, 1987, Crop Science Society of America, and Soil Science of America, 677 S. Segoe Rd., Madison, WI 53711 USA, Minirhizotron Observation Tubes: Methods and Applications for Measuring Rhizosphere Dynamics, ASA Special Publication No. 50.
The Universal Bioavailability Environment/Soil Test Unibest, Skogley, Earl O., 23 Commun. Soil Sci. Plant Ana. 2225, published Dec. 23, 1992.
Skogley Earl O.
Warrington Gordon E.
Raevis Robert
Santangelo Luke
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