Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy
Patent
1997-12-23
2000-09-26
Luebke, Renee
Electricity: circuit makers and breakers
Contact moved by sudden release of stored energy,
200 11R, 200470, H01H 504
Patent
active
061245577
ABSTRACT:
A multi-position switching actuator for a switch gear includes a control handle unit including a control protrusion and an insertion recess, a rotation member disposed at a portion spaced from a rear portion of the control handle unit and rotated by a rotation of the control handle unit, a front plate disposed between the control handle unit and the rotation member, a latch releasing member engaged to the rear surface of the rotation member, a latch driving member engaged to the latch releasing member, a location fixing member connected to the latch driving member and limiting a rotation of the latch driving member by a predetermined angle, an elastic member disposed between the latch releasing member and the latch driving member for thereby generating an instant rotation of the latch driving member, and a central shaft for being inserted from a rear portion of the latch driving member toward the front of the multi-position switching actuator. The actuator appropriately switches a contact point to another and carry out a 3-position (open-close-earth) control, a four-position (open-close-open-close) control and a multi-position control by employing a single actuator.
REFERENCES:
patent: 5034575 (1991-07-01), Stewart
patent: 5113056 (1992-05-01), Kuhn
patent: 5224590 (1993-07-01), Milianowicz et al.
patent: 5226528 (1993-07-01), Schaffer et al.
patent: 5274206 (1993-12-01), Milianowicz
patent: 5276288 (1994-01-01), Erickson et al.
patent: 5326944 (1994-07-01), Garcia
patent: 5504293 (1996-04-01), Rogers et al.
LG Industrial Systems Co. Ltd.
Luebke Renee
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