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High speed shutterA shutter element is described which is formed by a loop of an electrically conductive ribbon disposed adjacent to the end of a passageway to be shuttered. The shuttered end of the passageway is cut at an acute angle. The two leg portions of the ribbon loop are closely spaced to each other and disposed in a plane parallel to the axis of the passageway. A pulse of high current is switched through the loop to cause the current flowing in opposite directions through adjacent leg portions of the ribbon. This produces a magnetically induced pressure on one of the legs of the ribbon forcing the leg over the end of the passageway in gas tight sealing engagement, and thereby blocking passageway.
Document ID
19740013187
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Mcclenahan, J. O. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 3, 2013
Publication Date
March 19, 1974
Subject Category
General
Accession Number
74N21300
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-ARC-10516-1|US-PATENT-3,797,919
Patent Application
US-PATENT-APPL-SN-267768

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