Title:
Photoelectric inspection and sorting machines
United States Patent 3105151
US Patent References:
Analyzing system for picture transmission
- - 1828000

Sorting apparatus
- - 1945395

Sorting apparatus
- - 2054320

Paper break detector
- - 2078800

Photoelectric control device
- - 2336376


Inventors:
Paul, Nash
Publication Date:
09/24/1963
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Assignee:
Paul, Nash
Primary Class:
250/559.420
Other Classes:
209/587, 83/79, 250/214R, 250/239, 250/559.450, 250/223R
International Classes:
G01N21/89; G01N21/88
US Patent References:
2395181Scanning light control for pinhole detectors
2433685Apparatus for separating defective sheets as sheared from continuous strip
2438588System for comparison or analysis of information
2458926Web scanning device
2565727Photoelectric paring apparatus
2617528Automatic sheet throwout apparatus
2758712Detecting apparatus
2939016Detecting apparatus
2966264Sorting apparatus