Patent · US Expired

Panel displays, framed lighted switch actuators therefor

US4710858A · kind A · utility

16Cited by

6References

5Claims

0Family size

Inventors

James E. Van Hout · Auburn Hills, US
Frank Klein · Neviges, DE

Key dates

Filing date	Jan 20, 1987
Grant date	Dec 1, 1987
Priority date	—
Expiry date	Jan 20, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S362/80
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.