Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent
1975-03-17
1976-10-19
Tolin, Gerald P.
Electricity: circuit makers and breakers
Electric switch details
Cases and bases
248 278, 200153G, H01H 902
Patent
active
039872653
ABSTRACT:
The snap-in assembly includes a split or snap ring which is releasably held within an annular groove provided in the outer end portion of an elongated bushing, pivotally supporting an actuating lever of an electrical toggle switch, by a retainer including a sleeve or collar encircling and releasably engaging the snap ring. As the outer end portion of the bushing is inserted through the hole of a support panel during mounting, a portion of the retainer abuts the back of the panel and continued axial movement of the bushing relative to the retainer causes the snap ring to become disengaged from the sleeve or collar and move radially outwardly toward its normally expanded position where it overlies a front portion of the panel surrounding the mounting hole. The snap ring is held in tight engagement with the front of the panel by a backup spring which urges the bushing in an axial direction away from the backside of the panel.
REFERENCES:
patent: 2689700 (1954-09-01), Drury
patent: 3102173 (1963-08-01), Damon
patent: 3273104 (1966-09-01), Krol
patent: 3299227 (1967-01-01), Schaad
Cutler-Hammer, Inc.
Tolin Gerald P.
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