Proximity switch
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United States of America Patent
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-
Jul 20, 1999
Issued Date -
N/A
app pub date -
Aug 8, 1996
filing date -
Jul 15, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A magnet sensor or 'proximity switch' for sensing reciprocation of for example a spool within a lubrication distributor block. The sensor provides a threaded nozzle for screwing into the block with a bore therethrough. A magnet holder extends out of the nozzle and mounts a magnet thereto recessed inside the housing. The magnet holder is moveable reciprocally by the reciprocating spool. A sensor body is connected to the housing and holds a magnetic sensing element such as a Hall effect sensor adjacent to the housing for sensing the proximity of the magnetic field of the reciprocating magnet.
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