Heated windshield wiper blade and holder

摘要

An electrically heated windshield wiper blade and assembly is provided which includes an elongated resilient blade, a blade carrier comprising an elongated body member and a pair of pivotable blade holder end sections located on opposite ends of the body member. The body member of the blade carrier includes a pair of first flexible electrical conductors extending there-through. Each conductor enters the body member and terminates at a first end located beyond a respective end of the body member. The wiper blade includes a relatively long first resistance heating element fully enclosed within a longitudinal passageway and which is electrically connected at each end to a first end of a respective one of a pair of second flexible electrical conductors. Each of the blade holding end sections comprises a hollow sealed portion through which a second resistance heating element extends. A second end of each second conductor is electrically connected to one end of the second heating element within the hollow portion. The other end of the second heating element is connected within the hollow sealed portion to the first end of one of the first conductors. The first conductors are arranged to be connected to an electrical power source so that upon the passage of electrical current therethrough the first heating element in the blade heats the blade while the second heating elements heat the blade holder member sections.