Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-08-25
1982-11-16
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
361180, 200 16C, 200 6141, G08B 2100
Patent
active
043597270
ABSTRACT:
A sensor assembly for electrically signalling the presence of bare spots on coated sheet metal for removal before further fabrication.
REFERENCES:
patent: 2572597 (1951-10-01), Connor
patent: 2696589 (1954-12-01), Bendix et al.
patent: 3037163 (1962-05-01), Wiprud
patent: 3146431 (1964-08-01), Betts
patent: 3193630 (1965-06-01), Shlesinger, Jr.
Caldwell Sr. John W.
Myer Daniel
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