Electricity: circuit makers and breakers – Electrostrictive or electrostatic
Patent
1995-06-12
1997-06-10
Walczak, David J.
Electricity: circuit makers and breakers
Electrostrictive or electrostatic
200314, 310339, H01H 5700
Patent
active
056367295
ABSTRACT:
A piezo-electric switch with a lighted push-button. The piezo switch has a case for mounting the push-button, a piezo element with a hole in it, and a hollow spacer for separating the push-button from the piezo element; the holes in the spacer and piezo element are aligned with each other. Within the case is mounted a light source, where the light source may be positioned within the hole in the spacer, or in the hole in the piezo element, but in either configuration allowing light to shine through the holes to illuminate the push-button.
REFERENCES:
patent: 3303290 (1967-02-01), Suloway
patent: 3648279 (1972-03-01), Watson
patent: 3909924 (1975-10-01), Vindasius et al.
patent: 4295373 (1981-10-01), Moffatt
patent: 4430595 (1984-02-01), Nakasone et al.
patent: 4530138 (1985-07-01), Ritter
patent: 4683359 (1987-07-01), Wojtanek
patent: 5442150 (1995-08-01), Ipcinski
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