Patent ID: 6396033
Filing Date: 2002-05-28
Classification: F04B,H05B

Abstract:
An electrical heater comprising:a housing having an internal bore, a hot core arranged in the internal bore of the housing, the hot core being made of an insulating material and having a plurality of passages extending therethrough, a resistance wire extending through the plurality of passages in the hot core, a pair of hypo tubes, each hypo tube being connected to a respective end portion of the resistance wire, a cold core arranged in the internal bore of the housing, the cold core being made of an insulating material and having a pair of passages through which the hypo tubes extend, a pair of lead wires each of which is connected to a respective one of the hypo tubes for connecting the hypo tubes to a power source, and a spacer plate having a pair of openings therethrough through which the pair of hypo tubes extend, the spacer plate being configured to engage an inner surface of the housing and hold the hypo tubes in spaced relation from each other and the housing.