Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1986-12-08
1989-03-14
Caldwell, Sr., John W.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340 31, 178 18, 250221, G09G 100
Patent
active
048128309
ABSTRACT:
A touch panel assembly includes a filter plate having a recessed outer surface, first and second "L"-shaped supports each including a plurality of light-emitting or detecting elements along edges thereof with the "L"-shaped supports positioned adjacent to the inner surface of the filter plate and about the recessed outer surface whereby light from a lamp passes through the recessed outer surface to a detector element. A display is positioned in alignment with the recessed outer surface. The assembly is compact and facilitates the sealing of the display and electronics within a housing. The "L"-shaped supports for the light sources and detectors facilitate the assembly and servicing of the light elements in the assembly.
REFERENCES:
patent: 3764813 (1973-10-01), Clement et al.
patent: 4459476 (1984-07-01), Weissmueller et al.
patent: 4675569 (1987-06-01), Bowman et al.
patent: 4689446 (1987-08-01), Hasegawa et al.
patent: 4695827 (1987-09-01), Beining et al.
Caldwell Sr. John W.
Digital Electronics Corporation
Fatahiyar Mahmoud
LandOfFree
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