Abstract: A sealing ring for a drive axle for a mobile vehicle such as a medium or heavy duty truck. The sealing ring is for the interface between the shaft end flange of the axle and the outer hub mounting face of the wheel hub which allows for metal to metal contact between shaft end flange and the wheel hub mounting faces. The sealing ring has a shaft side which is compressed upon installation into a recess in the shaft end flange of the axle and the sealing ring has a hub side which fits adjacent to an inner radial wall of the wheel hub to seal lubricant in the cavity of the wheel hub. The sealing ring is resistant to tearing during installation.

Abstract: A heated fluid is used as a thermal herbicide for scalding and killing roots growing within sewer lines. The process includes the steps of heating a fluid, isolating a length of a sewer line, and then filling the isolated length of sewer line with the heated fluid for a lethal period of time required for the heated fluid to act as a thermal herbicide for killing the roots within the length of sewer line. When treating an adjacent length of the sewer line, the preheated fluid is removed from the preceeding section, reheated, and then inserted into the adjacent isolated length of the sewer line.