Control panel for a welding-type apparatus

Details Control panel for a welding-type apparatus Control panel for a welding-type apparatus

2005-03-24

2008-08-12

Kerns, Kevin P (Department: 1793)

Electric heating

Metal heating

By arc

C362S085000

Reexamination Certificate

active

07411154

ABSTRACT:
A welding-type apparatus has a control panel with enhanced viewability. The control panel may include LEDs, backlit LCDs, and other light-emitting indicators whose viewability by a user is enhanced when the control panel is subjected to relatively intense ambient light, such as direct sunlight. The control panel includes light reflecting, light refracting, light filtering, and/or light absorbing components to enhance the intensity of the light emitted by the light-emitting indicators relative to ambient light incident thereon.

REFERENCES:
patent: 5005009 (1991-04-01), Roberts
patent: 6315186 (2001-11-01), Friedl et al.
patent: 2004/0173591 (2004-09-01), Knoener
patent: 2004/0178183 (2004-09-01), Cigelske, Jr.
“Contrast enhancement filter, Plastic lamination”, 2002, pp. 1-3, http://www.opticalfilters.co.uk/applications/contrastfilter.htm.

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