Patent ID: 6856221
Filing Date: 2005-02-15
Classification: E05B,H01F,Y10S,Y10T

Abstract:
1. A reversible solenoid for an active push or an active pull of an object, comprising: a case having a rear case end and a front case end, said front case end closer to said object and said rear case end farther from said object; a coil within the case, the coil having a rear coil end and a front coil end, said front coil end proximate to said front case end and said rear coil end proximate to said rear case end; and an armature slug repositioned to be disposed proximate to said rear coil end for said active push and proximate to said front coil end for said active pull, wherein energizing the coil draws the slug toward said front coil end for pushing an object away from the coil for said active push and draws the slug toward said rear coil end for pulling said object toward the coil for said active pull, whereby repositioning the slug reverses the solenoid between said active push and said active pull without end-for-end reversing the coil or the case with respect to said object.