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Claude N Nowlin DeceasedPasadena, TX
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Pasadena, TX
Stanton, TX
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Us Patents
System For Identifying Individual Drill Pipe
US Patent:
4578991, Apr 1, 1986
Filed:
Nov 15, 1984
Appl. No.:
6/671824
Inventors:
Claude E. Nowlin - Houston TX
Assignee:
Texaco Inc. - White Plains NY
International Classification:
E21B 4700
US Classification:
73151
Abstract:
System is for identifying individual drill pipes. It uses a group of non-ferrous rings on the outside surface of an individual drill pipe. The rings are arranged in a predetermined order and spacing to represent an individual identification. There is a means for sensing the non-ferrous rings, and means for determining the individual identification as the pipe is translated longitudinally relative to the sensing means.
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