Dial control with LED light ring

Details Dial control with LED light ring Dial control with LED light ring

2011-04-19

2011-04-19

Payne, Sharon E (Department: 2875)

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

C362S024000, C362S027000, C362S028000, C362S030000, C362S249020

Reexamination Certificate

active

07926964

ABSTRACT:
An illuminated control for a gas range or the like provides arcuate reflective chambers capped by diffusers to create a substantially continuous glowing circular sector indicating the status of a possibly low visibility gas flames. Line power may be used for direct drive of light emitting diodes illuminating the reflective chambers through the use of discrete series-connected voltage dropping resistors distributed to prevent heat concentration.

REFERENCES:
patent: 3739512 (1973-06-01), Ruppert
patent: 4211955 (1980-07-01), Ray
patent: 4431966 (1984-02-01), Pucciarello
patent: 4571531 (1986-02-01), Lin
patent: 6663249 (2003-12-01), Pan
patent: 2001/0015201 (2001-08-01), Pollock et al.
patent: 2006/0164229 (2006-07-01), Masters et al.
patent: 08122102 (1996-05-01), None

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