Electromechanical relay with manual override control
AssigneeGulf & Western Manufacturing Company
InventorDonald R. Ritzenthaler
Life of this patent
Estimating the term…
Abstract
An improvement in a standard electromechanical relay wherein a manually shiftable member simultaneously disconnects the operating coil of the relay and mechanically shifts the relay into an actuated or released condition.
Claims13
In a relay comprising an energizable operating coil, a circuit on said relay for directing energizing current through said coil, an armature member controlled by said coil and movable into a first actuated position when said coil is energized and into a second released position when said coil is not energized, at least one pair of contacts movable into a first relative position when said armature member is in its first actuated position and into a second relative position when said armature is in its second released position, the improvement comprising:
- a support structure on said relay;
- a manually shiftable member;
- means for mounting said shiftable member on said support structure for selective movement between a normal position allowing operation of said coil by said circuit to shift said contacts between said relative positions and a shifted position different from said normal position;
- an override switch means in said energizing circuit for interrupting said circuit when actuated;
- and switch actuating means for actuating said override switch when said shiftable member is in said shifted position.
In a relay comprising an energizable operating coil, a circuit on said relay for directing energizing current through said coil, an armature member controlled by said coil and movable into a first actuating position when said coil is energized and into a second released position when said coil is not energized, at least one pair of contacts movable into a first relative position when said armature member is in its first actuated position and into a second relative position when said armature is in its second released position, the improvement comprising:
- a support structure on said relay;
- a manually shiftable member;
- means for mounting said shiftable member on said support structure for selective movement between a normal position and a shifted position different from said normal position;
- means for holding said shiftable member in either of said normal shifted positions;
- an actuating member movable into a latch position with said actuating member mechanically holding said armature in said first actuating position;
- means for supporting said actuating member onto said relay;
- and, means for mechanically forcing said actuating member into said latch position when said manually shiftable member is in said shifted position.
Dependencies are inferred from the claim text.