Magnetic motor
AssigneeEsterline Electronics Corporation
InventorJack M. Brown
Life of this patent
Estimating the term…
Abstract
A magnetic motor for use as an actuator for devices such as relays, indicators and the like. It comprises an electromagnetic winding having a core member to the opposite ends of which are fastened pole pieces which cooperate with a magnetically movable armature. An additional pole piece as well as a permanent magnet are also provided. One end of the armature is caused to contact or engage one of the pole pieces or, in the alternative, to engage or contact alternatively several different pole pieces. The opposite end of such armature is shaped so as to provide a generally U-shaped air gap with the other pole piece, and the armature is so positioned as to move from one side of coplanar relationship with such other pole piece to the other side thereof.
Claims6
A magnetic motor comprising in combination,
- an elongated core member having opposite end portions,
- a winding on said core member to be electrically energized to afford electromagnetic flux in said core member,
- a first pole piece fixed to one end portion of said core member,
- a second pole piece fixed to the other end portion of said core member,
- a permanent magnet adjacent said second pole piece,
- a third pole piece adjacent said permanent magnet opposite said second pole piece thereat,
- and an armature and pivotal support means therefor for pivotal movement of said armature about an axis intermediate first and second end portions thereof, said first armature end portion being substantially coplanar with at least a portion of said first pole piece for magnetic cooperation therewith and said second armature end portion being movable between magnetic cooperation with said second and third pole pieces alternatively,
- said first armature end portion and said first pole piece being spaced from each other throughout pivotal movement of said armature and being complementally shaped to provide an irregular air gap therebetween.
Dependencies are inferred from the claim text.