Electricity: circuit makers and breakers – Switch activation inhibitor – Locked cover prevents access to actuator
Patent
1995-03-02
1996-09-24
Walczak, David J.
Electricity: circuit makers and breakers
Switch activation inhibitor
Locked cover prevents access to actuator
200 4316, 200 4311, H01H 928
Patent
active
055582095
ABSTRACT:
A switch lockout for preventing movement of a switch arm which projects through an opening in a switch face plate and pivots about a transverse ON-OFF axis, of either a conventional wall-type electrical rocker or a conventional wall-type toggle switch, comprises (i) a mounting frame parallel to the switch face plate that includes a side wall of octagonal shape integrally attached to a planar end wall located--in operations--in a position parallel to the switch face plate. The end wall has a continuous edge integrally attached to the side wall to form a box-like interior cavity, and a central aperture extending orthogonally therethrough, and (ii) a cover frame pivotally attached to the mounting frame along a transverse pivot axis parallel to the transverse ON-OFF axis of the switch arm. The cover frame includes a side wall of octagonal shape integrally attached to an end wall that is bulbously shaped in its mid-region to define separate up-ramp and down-ramp segments that attach between co-planar first and second end segments. In operations, either the counterbore segment of the mounting frame or the up-ramp segment of the cover frame are used to create "stops" when the cover frame is placed in a closed state relative to the mounting frame, such "stops" limiting movement of the switch arm irrespective of type of switch assembly used, and irrespective of the ON-OFF operative state of the switch arm.
REFERENCES:
patent: 1168066 (1916-11-01), Girardot
patent: 5260528 (1993-11-01), Benda
Messner Harold D.
Walczak David J.
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