Signals and indicators – Indicators – Push-button type
Patent
1985-04-05
1987-07-21
Frankfort, Charles
Signals and indicators
Indicators
Push-button type
116DIG28, 335164, G08B 502
Patent
active
046810617
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.
REFERENCES:
patent: 2062259 (1936-11-01), Thomas
patent: 2265124 (1941-12-01), Andres
patent: 2270950 (1942-01-01), Jackson et al.
patent: 2643311 (1953-06-01), Giuffrida
patent: 2780198 (1957-02-01), Low
patent: 3422384 (1969-01-01), Filchak
patent: 3848211 (1974-11-01), Russell
patent: 4251289 (1981-02-01), Russel
patent: 4287399 (1981-09-01), Wiechert
patent: 4466042 (1984-08-01), Zylstra et al.
Dvorak Robert F.
Netolicky Charles E.
Palmer Neil R.
Frankfort Charles
Golden Larry I.
Guttman Richard T.
Square D Company
Worth W. Morris
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