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Switching Circuit for Shop Vacuum SystemNo internal connections to machine tools required. Switching circuit controls vacuum system draws debris from grinders and sanders in machine shop. Circuit automatically turns on vacuum system whenever at least one sander or grinder operating. Debris safely removed, even when operator neglects to turn on vacuum system manually. Pickup coils sense alternating magnetic fields just outside operating machines. Signal from any coil or combination of coils causes vacuum system to be turned on.
Document ID
19870000145
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Burley, R. K. (Rockwell International Corp.)
Date Acquired
August 13, 2013
Publication Date
March 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 3
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MFS-29153
Accession Number
87B10145
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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