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Bi-stable trip-free relay configuration

  • US 6,949,997 B2
  • Filed: 09/26/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 09/26/2003
  • Status: Expired due to Term
First Claim
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1. A relay comprising:

  • at least first and second support members where the first support member is linked to the second support member so that the first support member is stationary with respect to the second support member;

    at least one first contact carried by one of the support members;

    a bi-stable armature forming a first bearing surface and carried by one of the support members for movement between first and second stable positions when force is applied to the first bearing surface;

    at least one second contact operatively positioned with respect to the armature and one of open and closed with respect to the at least one first contact when the armature is in the first position wherein, where the second contact is open with respect to the first contact when the armature is in the first position, the second contact is closed with respect to the first contact when the armature is in the second position and wherein, where the second contact is closed with respect to the first contact when the armature is in the first position, the second contact is open with respect to the first contact when the armature is in the second position;

    an operator forming a second bearing surface and carried by one of the support members for movement between an activated position and a deactivated position; and

    a push arm forming a distal end and a push surface, the push arm carried by one of the support members, each of the distal end and the push surface proximate one or the other of the first and second bearing surfaces;

    wherein, one of the distal end and the push surface engages one of the first and second bearing surfaces and the other of the distal end and the push surface engages the other of the first and second bearing surfaces when the armature is in the second position and the operator is moved from the deactivated position toward the activated position thereby applying force to the first bearing surface, the distal end disengaging the one of the first and second bearing surfaces when the armature has moved to the first position;

    wherein the armature is carried by the first support member and the push arm is carried by the second support member.

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