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All-Water-Jet Coal ExcavatorVersion of jaw miner operates without mechanical cutting and crushing. Forward-pointing jets of water dislodge and break up coal. Rearward-pointing jets further break up coal and force particles into slurry chamber. Oscillatingjet mechanism itself stays within "jaw" structure and protected from wear and tear associated with coal handling. All-jet machine generates even less dust than anger, therefore poses lesser explosion or health hazard.
Document ID
19850000238
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Gangal, M. D.
(Caltech)
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 9
Issue: 2
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
NPO-16183
Accession Number
85B10238
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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