Wiper blade heating and fluid dispensing means

Details Wiper blade heating and fluid dispensing means Wiper blade heating and fluid dispensing means

B - Operations, Transporting

60

S

B60S 1/52 (2006.01) B60S 1/38 (2006.01) B60S 1/48 (2006.01)

Patent

CA 2178300

This invention relates to a new and useful improvement in a wiper for use on thewindshields of vehicles, such as automobiles, trucks, trains, boats, airplanes and the like, and more particularly to improvements in a windshield wiper which is electrically heated so as to prevent the accumulation of ice, sleet or snow on the wiper blade. Moreparticularly, this invention has references to an improved heating arrangement designed to be used in windshield wiper assemblies with minimum modification or redesign of the blade-supporting, oscillating means, etc. A spiral coiled heating element of resistance wire and a fluid dispensing arrangement for dispensing heated fluid are disposedsubstantially within the entire length of the passageway of the wiper blade. Tubes of electrical conductive material enter the passageway at the first and second passageway ends thus providing a means for both heat and/or fluid conveyance and an entrance and exits for the current and fluid. The ends are then sealed with a moisture proof sealant which also serves to maintain stability of end connections. The heating arrangement is connected to the vehicle battery to heat the heating element and fluid contained inside the blade passageway allowing the entire outer circumference of the wiper body and the wiping surfaces to melt ice surrounding the wiper and ice present on the windshield. Therefore the fluid is prevented from freeze-up and spray nozzle remains operable. The reciprocating spray nozzle is designed to spray ahead of wiper in both upward and downward movement. If desired the fluid dispensing arrangement can be used without heating the fluid.

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