US 4,681,061 AGranted

Button indicator and switch assembly

AssigneeSquare D Company

InventorsRobert F. Dvorak, Charles E. Netolicky, Neil R. Palmer

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Abstract

A flush mounted indicating button assembly and operating button assembly each connected to a cover having a pair of holes which receive identical buttons of the assemblies. Each button includes a circular head portion having a flat top surface and a circular base portion having a lesser diameter than the head portion which has a flat bottom surface and defines a collar portion at the bottom of the head portion. The base portion of each bottom is provided with a circumferential channel adjacent the bottom surface which carries a retaining ring. The indicator button is positioned within the hole by a leaf spring member which is connected to the bottom surface of the cover and includes an opening shaped and dimensioned to permit passage of the base portion while preventing passage of the head portion of the button. The opening is in registration with the hole in the cover and a helical coil encircles the base portion intermediate the leaf spring member and the retaining ring. The hole through which the operating button extends is provided with an annular lip adjacent the bottom surface of the cover with a coil spring captured between the collar portion of the button and the annular lip while the retaining clip is engaged with the bottom surface of the cover to prevent further upward movement of the button.

Claims3

Dependent claims

A trip indicator and reset assembly for a circuit breaker having a trip indicating solenoid with a plunger movable between a trip position and a reset position comprising:

a cover for said circuit breaker having a top surface and a bottom surface and a hole in axial alignment with said plunger;
a button separable from said plunger having a head portion and a reduced diameter base portion, said head portion being shaped and dimensioned to pass through said hole and having a collar portion adjacent said base portion;
a leaf spring having a mounting portion secured to said bottom surface of said cover and having an extending leaf portion, said leaf portion including an opening in registration with said hole, said opening shaped and dimensioned to permit passage of said base portion of said button while preventing passage of said head portion of said button;
a retaining ring secured to said base portion of said button;
and a coil spring encircling said base portion of said button intermediate said leaf spring member and said retaining ring, said coil spring biasing said button toward a position having said collar portion engaged with said leaf spring, said leaf spring resiliently positioning said button at an initial position within said hole while permitting said button to be moved to a first position indicating a trip condition in response to said plunger moving to said trip position and also permitting said button to be moved in an opposite direction past said initial position to a second position to move said plunger to said reset position, said leaf spring resiliently biasing said button towards said initial position in response to said button being moved between said initial position and said second position.

2 more elements

Dependencies are inferred from the claim text.