H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 7/02 (2006.01) G01B 7/00 (2006.01) G01B 7/30 (2006.01) H02K 1/14 (2006.01) H02K 1/27 (2006.01) H02K 3/04 (2006.01) H02K 3/18 (2006.01) H02K 3/46 (2006.01) H02K 3/52 (2006.01) H02K 21/24 (2006.01) H02K 29/08 (2006.01)
Patent
CA 2120764
2120764 9309550 PCTABS00022 The composite magnet of the present invention comprises two pieces (60, 61) of permanent magnet material formed into a complementary pattern of holes and projections. The two pieces are magnetized in opposite axial directions. The two pieces (60, 61), magnetized in this manner, when placed together form an interlocking single element which exhibits a magnetic pattern of north-south poles which matches the pattern of holes and projections. In this manner, the composite magnet appears as a single permanent magnet, exhibiting a sharp, strong, and well-defined magnetic pattern. In accordance with the present invention, the composite magnet may be used in many applications including, but not limited to encoders, one of which is described in detail.
Allwine Elmer C.
Smart & Biggar
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