Pipe identifying apparatus
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United States of America Patent
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-
Aug 11, 1992
Grant Date -
N/A
app pub date -
Aug 14, 1990
filing date -
Aug 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is directed to a pipe identifying apparatus in use for a pneumatic force type device for transporting powdered materials, a dryer and the like. The pipe identifying apparatus comprises a plurality of magnetic rings and non-magnetic rings which magnetic rings and non-magnetic rings form specific identifying codes for each of a plurality of pipes and proximity switches provided on the side of receiving part of the pipe and associating with the magnetic rings to form a magnetic circuit, so that the magnetic circuit is closed to generate electric signals between each proximity switches and each of the plurality of magnetic rings and non-magnetic rings, thereby identifying specific connected pipes by means of the generated electric signals.
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