G - Physics – 08 – C
Patent
G - Physics
08
C
340/135.7
G08C 21/00 (2006.01) C03B 9/447 (2006.01) G01D 5/20 (2006.01) G01D 7/00 (2006.01)
Patent
CA 1213019
ABSTRACT OF THE DISCLOSURE Apparatus for sensing the position of a mechanism while moving in a direction transverse thereto is disclosed. The apparatus for sensing the position of the mechanism comprises an electrical load, an oscillator having an input connectable in series with the load to a source of direct current, and an electromagnet electrically connected to the output of the oscillator and having J radiating surface opposingly positioned to face the mechanism so that a magnetic field generated thereby radiates in a direction toward a fixed target position through which the mechanism travels. The apparatus also comprises an electrically conductive target having a surface between a leading edge and a lagging edge. The target is mounted on the mechanism so that the leading edge of the target enters the magnetic field as the mechanism moves the target toward the target position. The target is shaped between the edges so that the surface of the target tapers from the leading edge to the lagging edge in a direction toward the electromagnet.
440537
Gowling Lafleur Henderson Llp
Owens-Illinois Inc.
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