Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1988-04-18
1990-05-29
Bartis, Anthony
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
219201, 219203, 219522, 219544, 219553, 338214, H05B 314, H05B 336, B60S 138
Patent
active
049283448
ABSTRACT:
A heated windshield wiper blade unit suitable for incorporation into existing windshield wiper assemblies. The unit comprises an elastic wiper blade, for example RTV rubber, and a flexible, fibrous carbon heating element disposed in the blade substantially along its entire length. The heating element contains a plurality of fibrous carbon strands coaxially surrounded by a heat shrunk polymeric tube. A live wire and a ground wire enter the blade and the heat shrunk polymeric tube at an intermediate point and extend through the tube to establish electrical contact with the respective first and second ends of the fibrous carbon strands. The wires preferably enter a side wall of the blade half way along its length and are insulated with a "tetrafluoroethylene polymer".
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