Abstract: An arrester includes a housing having an inner bore, and a substantially cylindrical varistor body is received in the inner bore of the housing. The varistor body is formed of at least one varistor element having a lateral outer surface and a length defined between first and second ends of the varistor body, and a first mating element extending outwardly from the outer surface and along substantially the entire length of the body. A substantially rigid first support member is received in the inner bore and is disposed on the outer surface of the body. The first support member has a first mating surface that corresponds to and engages the first mating element of the body, thereby coupling the body and the first support member.

Abstract: An arrester includes a housing having an inner bore, and a substantially cylindrical varistor body is received in the inner bore of the housing. The varistor body is formed of at least one varistor element having a lateral outer surface and a length defined between first and second ends of the varistor body, and a first mating element extending outwardly from the outer surface and along substantially the entire length of the body. A substantially rigid first support member is received in the inner bore and is disposed on the outer surface of the body. The first support member has a first mating surface that corresponds to and engages the first mating element of the body, thereby coupling the body and the first support member.

Abstract: The present invention relates to specially shaped structural components for use in the construction of furnaces, foundries, and similar applications. In particular, the present invention relates to an improved flue wall in a high temperature furnace. The improved flue wall is constructed of specially shaped bricks to improve the tensile strength of the wall, increase the shear transfer capacity of the wall, and thus improve the flue wall life. The flue wall is constructed of specially designed refractory bricks joined together by air and/or heat-set mortar and arranged in courses, and comprises two parallel face walls parallel to the chambers wherein the carbon blocks are positioned and enclosing a flue chamber, two side walls generally perpendicular to the face walls enclosing the lower portion of the flue chamber, and baffle bricks and tie bricks arranged in a number of noncontinuous columns throughout the flue wall.