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US 5,288,957 AGranted
Illuminated touch button switch
AssigneeOtis Elevator Company
InventorBruce P. Swaybill
Life of this patent
Estimating the term…
Abstract
A touch button switch includes a light conducting body (10) having a conductive actuator (28) slidable from one end against a surface (62) to actuate a switch (61) on a board (52) which is held in place by hook laches (53) engaging mortises (55) in the circuit board. The circuit board has LEDs (58) which illuminate the rear edge of the body, which causes the light to be visible at its front surfaces 20, 21.
Claims5
A touch button, comprising:
- a generally cylindrical body of light transmitting material having a light emitting edge at a proximal end thereof, having a plurality of hook latches extending longitudinally outward from a distal end thereof, having at least one stop surface near said distal end, having light receiving edge surfaces at said distal end, and having a bore axially disposed between said ends;
- a circuit board having a plurality of light-emitting diodes disposed on a surface thereof and having a mortise for each of said hook latches, said light emitting diodes positioned to illuminate said light receiving surfaces with said circuit board urged against said stop surface and said hook latches extending through said mortises and engaging said circuit board;
- and
- an actuator having a touch pad at a proximal end and a stem at a distal end, said actuator disposed within said body with said stem within said bore and said touch pad near said light emitting edge.
1 more element
A touch button according to claim I including a mounting flange extending radially outwardly of said body between its ends.
Dependencies are inferred from the claim text.