Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1996-05-15
1998-08-04
Graham, Gary K.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
219202, 1525048, B60S 138
Patent
active
057875430
ABSTRACT:
A windshield wiper blade having an internal conduit extending throughout the length of the wiper blade body through which an electric heating element is placed provides a means to address a wintertime problem of windshield wiper icing and freeze-up causing the wiper blade to lose flexibility and not sweep the curved windshield commonly found on most motor vehicles clear enough for good driving visibility. The preferred means to address this problem is to provide an electrical heat element within the wiper blade body of about the same linear length as the wiper blade body. Additionally, in the present invention, a low-cost resistance wire type heat element that can be cut to accommodate various wiper blade lengths is used. The heat element comprises a flexible spiraled resistance wire coiled around stranded fiberglass, the whole of which is encapsulated in a silicone rubber jacket. The heat element is energized with the connection of insulated power supply wires from each heat element end to the vehicle electrical system to provide an electrical current to the heat element which generates heat output through the wiper body when the heat element is activated. The electrical heat output is adequate to sustain the flexibility of the wiper blade resulting in better wiper performance and thus better driving visibility in severe winter conditions.
REFERENCES:
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patent: 5426814 (1995-06-01), Minnick
patent: 5488752 (1996-02-01), Randolph
patent: 5504965 (1996-04-01), Guell
Graham Gary K.
Selders Arthur W.
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