Electricity: circuit makers and breakers – Plural switches control single circuit
Patent
1982-09-23
1984-03-06
Shepperd, John W.
Electricity: circuit makers and breakers
Plural switches control single circuit
200321, 200334, H01H 924
Patent
active
044356242
ABSTRACT:
A lock off-lock on for a handle of an electric circuit breaker includes a unitary metallic member having a first handle engaging portion adapted to be inserted into an opening of a circuit breaker handle. The opening can be provided in a direction perpendicular to the reciprocating movement path of the handle between "on" and "off" positions. The member includes a second handle engaging portion joined to the first portion by a bight to form a U-shaped structure. The second handle engaging portion engages a surface of the handle which is in exposed adjacency to a dependent arcuate portion which is in proximal relationship with the interior of a slot in the housing in which the handle outwardly extends. A flat spring, coupled to a part of one side of the second portion by an angular bend, is engageable with the dependent arcuate portion and is in abutting relationship with the housing at one of the edges of the slot. A flange is coupled to the flat spring proximal to the bight and is bent outwardly away from the housing so as to facilitate removal of the lock off-lock on from the handle. The handle engaging portion includes flash piercing means at a free end of the portion.
REFERENCES:
patent: 2832857 (1958-04-01), Landmeier
patent: 2849552 (1958-08-01), Firestone
patent: 2937248 (1960-05-01), Michetti
patent: 3408466 (1968-10-01), Palmer
patent: 3909764 (1975-09-01), Belttary
patent: 4300030 (1981-11-01), Dimarco
Challenger Caribbean Corporation
Challenger Products Corporation
Commander Electrical Equipment, Inc.
Kane John J.
Kidorf Renee S.
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