Outdoor electrical display sign with an electrical resistance heater
AssigneeDaktronics, Inc.
InventorRobert J. Lutz
Life of this patent
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AssigneeDaktronics, Inc.
InventorRobert J. Lutz
Estimating the term…
An outdoor electrical display sign with an electrical resistance heating element on a transparent front panel thereof for removing condensation or for dissipating precipitation from the surfaces of the transparent front panel of the sign. The electrical resistance heating element can be adhesively secured onto a surface of the transparent front panel, taped onto a surface of the transparent front panel, laminated between the transparent front panel and an additional transparent polymer panel, photoscreened onto a surface of the transparent front panel, photo-etched onto a surface of the transparent front panel, or formed by pouring electrical resistance material into minute grooves formed in the transparent front panel. The electrical resistance heating element can be on either the inner surface or the outer surface of the transparent front panel, preferably the inner surface.
An outdoor sign comprising:
An outdoor sign comprising:
Dependencies are inferred from the claim text.