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Self-recording portable soil penetrometerA lightweight portable penetrometer for testing soil characteristics is described. The penetrometer is composed of a handle, data recording, and probe components detachably joined together. The data recording component has an easily removed recording drum which rotates according to the downward force applied on the handle, and a stylus means for marking the drum along its height according to the penetration depth of probe into the soil.
Document ID
19730010693
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Costes, N. C. (Teledyne Brown Engineering Huntsville, AL, United States)
Sturm, R. G. (Teledyne Brown Engineering Huntsville, AL, United States)
Norton, R. H. (Teledyne Brown Engineering Huntsville, AL, United States)
Campbell, G. E. (Teledyne Brown Engineering Huntsville, AL, United States)
Date Acquired
September 2, 2013
Publication Date
January 23, 1973
Subject Category
Instrumentation And Photography
Accession Number
73N19420
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-20774|US-PATENT-3,712,121
Patent Application
US-PATENT-APPL-SN-161028

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