Device and methods for use of a dynamic cone penetrometer...

Measuring and testing – Hardness – By penetrator or indentor

Reexamination Certificate

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Reexamination Certificate

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08033163

ABSTRACT:
The present invention includes a device and method for more particularly evaluating the compaction of soil by automating the use of a prior art dynamic cone penetrometer such that user error and error caused by field conditions are eliminated. Recordation of penetrometer data previously not recorded is made more precise by the present invention such that standardized measurement results. The device further includes means for facilitating the determination of compaction of soils through keyhole openings and a means for automating the collection and processing of the generated compaction data.

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English translation of abstract of DE 3728669 A1.
Herrick et al., A dynamic cone penetrometer for measuring soil penetration resistance, Soil Science Society of America Journal 66:1320-1324 (2002).
Jones et al., Guide to Sampling Soil Compaction Using Hand-Held Soil Penetrometers, The Center for Environmental Management of Military Lands, Jan. 2004.

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