Patent ID: 6163092
Filing Date: 2000-12-19
Classification: H02K

Abstract:
A motor for providing reciprocating motion comprising:a flexible member, the flexible member having a pivot point about which the flexible member flexes;a stator having a plurality of pole faces, at least one of which is arcuate in shape, said stator being attached to said flexible member;an armature having a plurality of pole faces, at least one of which is arcuate in shape and complimentary to said arcuate pole face of said stator, said armature being attached to said flexible member, thereby defining an arcuate air gap of fixed width between said arcuate pole face of said stator and said arcuate pole face of said armature; andat least one air gap of variable width defined by a second pole face of said stator and a pole face of said armature,wherein said armature rotates about the pivot point of the flexible member when a magnetic flux is induced in said stator and said armature, wherein said arcuate air gap remains of fixed width as said armature rotates, wherein said variable air gap varies in width as said armature rotates about said pivot point, said width of said variable air gap being dependent upon the strength of said magnetic flux.