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Iris-leaf core retainer for a surface drillIris-leaf core retainer insures retention of a complete sample within the drill string. Individual overlapping leaves will not rupture or tear out when they come in contact with the oncoming core.
Document ID
19690000477
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Olivari, H.
Date Acquired
August 5, 2013
Publication Date
September 1, 1969
Subject Category
Mechanics
Report/Patent Number
MSC-11402
Report Number: MSC-11402
Accession Number
69B10496
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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