Panel displays, framed lighted switch actuators therefor

Backlighting from a circuit board mounted below a panel display is prevented from seeping around the edges of control actuators which rely on the backlighting to illuminate legends on the face of the actuators. A continuous frame and a layer of foam are disposed about the periphery of the actuators...

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Bibliographic Details
Main Authors KLEIN; FRANK H, VAN HOUT; JAMES E
Format Patent
LanguageEnglish
Published 01.12.1987
Edition4
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:Backlighting from a circuit board mounted below a panel display is prevented from seeping around the edges of control actuators which rely on the backlighting to illuminate legends on the face of the actuators. A continuous frame and a layer of foam are disposed about the periphery of the actuators for blocking the seepage of backlighting and half bearings are fixedly attached to the actuators in a manner permitting rotation of the actuators within openings in an escutcheon plate even though the frame is attached to the periphery of the actuators.
Bibliography:Application Number: US19870004449