Importance

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Abstract

An electrostatic precipitator is provided comprising a plurality of spaced apart vertically extending collector plates with an array of vertically extending ionizer wire rods disposed in a space between each of the collector plates. The improvement resides in an ionizer wire rod construction made of a heat resistant alloy, one end portion of which terminates into a plurality of closely packed helically formed loops. The size of the loops as a unit is sufficient to hook onto and freely hang from a connecting portion of an ionizer frame, the other end portion of the rod being also helically formed into a plurality of closely packed loops which are coupled as a unit to an end loop of a helically and tightly wound coil spring of a heat-resistant alloy. The tightly wound coil spring comprises a plurality of active turns, with each active turn adjacently touching the other in the unstretched condition, the coil spring being cylindrically shaped and having a length such as to provide a tension on the ionizer wire of at least about 30 pounds when substantially the total length of the cylindrical coil is activated by stretching to provide and maintain said tension, the coil spring having a connecting loop at its other end for coupling to an opposite portion of the ionizer frame.

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First Claim