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Automatic shutoff valveCellulose-sponge disk absorbs incoming water and expands with enough force to shut valve. When water recedes, valve opens by squeezing sponge dry to its original size. This direct mechanical action is considered more reliable than solenoid valve.
Document ID
19800000097
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hawkins, S. F.
(Rockwell International Corp.)
Overbey, C. W.
(ROckwell International Corp.)
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 1
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MSC-19385
Accession Number
80B10097
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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