MAGNETIC ACTUATOR MECHANISM
First Claim
1. An electromagnetic actuator mechanism comprising, in combination, an armature pivoted at one end for rotation about the pivot axis, between a reset position and an operated position, a reset flux magnetic circuit including a permanent magnet and having a U-shaped configuration with the legs of the circuit being bridged by the armature when the armature is in its reset position, an operating flux magnetic circuit including a source of operating flux and having a U-shaped configuration with the legs of the circuit being bridged by the armature when the armature is in its operated position, and opposing flux means for generating opposing flux which opposes said reset flux during at least a portion of the time said operating flux is effective.
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Abstract
A magnetic actuator comprising a stationary magnetic core structure having two distinct magnetic flux paths, with a movable armature included in both the flux paths and movable between a rest position and an actuated position. A permanent magnet or winding provides reset or restore flux, and a first winding includes the armature and opposes the restore flux. A second winding provides the major armature attractive force.
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Citations
3 Claims
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1. An electromagnetic actuator mechanism comprising, in combination, an armature pivoted at one end for rotation about the pivot axis, between a reset position and an operated position, a reset flux magnetic circuit including a permanent magnet and having a U-shaped configuration with the legs of the circuit being bridged by the armature when the armature is in its reset position, an operating flux magnetic circuit including a source of operating flux and having a U-shaped configuration with the legs of the circuit being bridged by the armature when the armature is in its operated position, and opposing flux means for generating opposing flux which opposes said reset flux during at least a portion of the time said operating flux is effective.
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2. An electromagnetic actuator mechanism as claimed in claim 1, in which said reset flux circuit permanent magnet is disposed in the central portion of the reset magnetic circuit.
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3. An electromagnetic actuator mechanism, as claimed in claim 1, in which said opposing flux means comprises a winding linking said armature.
Specification
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- Resources
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Current AssigneeCarl T. Young, Francis E. Peters, Hi D. Chai, Joseph P. Pawletko, Stephen H. Mills
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Original AssigneeCarl T. Young, Francis E. Peters, Hi D. Chai, Joseph P. Pawletko, Stephen H. Mills
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InventorsPeters, Francis E., Chai, Hi D., Mills, Stephen H., Pawletko, Joseph P., Young, Carl T.
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Primary Examiner(s)Harris, George
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Application NumberUS05/208,569Time in Patent Office572 DaysField of Search335/229,230,236,274 101/93C,93R,93XRUS Class Current335/229CPC Class CodesB41J 9/38 Electromagnetic meansH01F 7/14 Pivoting armatures H01F7/17...
