H - Electricity
02
K
310/62
H02K 7/16 (2006.01) G03B 9/32 (2006.01) H01F 7/16 (2006.01) H02K 33/12 (2006.01) H02K 33/16 (2006.01)
Patent
CA 1132646
6106 ABSTRACT OF THE DISCLOSURE A linear motor which utilizes the magnetic attraction between a washer formed from a ferrous material, e.g., steel, and a magnetic pole of an armature for automatically returning the armature to its original position upon the deenergization of a field coil. The washer is originally located in alignment with and in surrounding relation to one of the effective poles of the armature. The stroke of the armature is limited to a distance which insures that at the end of the stroke the one effective pole will be located closer to the washer than any other effective pole. Upon deenergizing the field coil, the magnet attraction between the one effective pole and the washer will cause the armature to return to its original position.
349069
Polaroid Corporation
Smart & Biggar
LandOfFree
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