Electric heating – Heating devices – Combined with diverse-type art device
Patent
1993-12-22
1995-01-31
Walberg, Teresa J.
Electric heating
Heating devices
Combined with diverse-type art device
H05B 384
Patent
active
053860985
ABSTRACT:
An arrangement for heating upper and lower windshield wiper blades parked proximate the lower edge of a windshield utilizes an electric heating grid placed against the inside surface of the windshield, substantially in alignment with the parked wiper blades. The electric heating grid is comprised of a first wire in alignment with the lower blade, an intermediate wire and an upper wire in alignment with the upper blade. The wires have opposite ends which are connected to busses that are disposed at the lower edge of the windshield, the busses having leads for connection to power circuitry. The power circuitry includes a climate control system having a switch which is rotatable to a defrost position. When the switch is rotated to the defrost position so that the climate control system defrosts the windshield, current flows through the grid. As long as the switch is in the defrost position, the current continues to flow. The power circuitry also includes a windshield wiper deicing switch which operates independently of the defrost switch. Associated with the windshield wiper deicing switch is a timer which opens the closed deicing switch after a selected interval of time. This arrangement provides an inexpensive reliable system for deicing windshield wiper blades because the wires are disposed on the windshield against the inside surface of the windshield.
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Chrysler Corporation
Fredericks Wendell K.
Walberg Teresa J.
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