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A. E. Moore Company, Inc. Patents
Assignee:
A. E. Moore Company, Inc.
Address:
Waupaca, WI
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4234833 Door operator system using counter circuit for determining limit positions November 18, 1980
The shaft driven by a reversible motor for opening and closing a door is provided with at least one reflective surface. An optical source/detector senses rotation of the shaft and generates a pulse each time one of the reflective surfaces passes. A programmable counter circuit counts the

 
 
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Door operator unit