Heated wiper blade

Details Heated wiper blade Heated wiper blade

1993-02-05

1998-05-12

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525006, 219202, 219505, B60S 104, B60S 138

Patent

active

057491186

ABSTRACT:
The present invention is a heated wiper blade comprising an elongated blade and a heating element connected to the electrical system of a vehicle. The heating element utilizes a material with a positive temperature coefficient of resistance placed between a pair of conductive members. The conductive members span the length of the heating element to provide a uniform distribution of heat through the length of the blade. Electrical connections to the heating element are preferably located at one end of the blade. The heating element can be located inside the blade or between a semi-rigid attachment member and an upper surface of the blade.

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"Self-Limiting Heaters for Automotive and Truck Exterior Mirrors" by Thermacon, Inc.
"Polymeric PTC Devices for Protecting Electronic Circuits" by Thermacon, Inc.
Article from The New York Times, Saturday, Jun. 2, 1990 entitled "Windshield Wipers Heated to Prevent Ice".

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