Patent ID: 7220947
Filing Date: 2007-05-22
Classification: H05B

Abstract:
1. A heater for heating elongated objects, comprising: an elongated strip of flexible dielectric material having first and second ends and elongated opposite side edges defining a width therebetween, and inner and outer faces defining a thickness therebetween and extending between the opposite side edges, the strip of dielectric material comprising a fiber reinforced dielectric elastomeric material having at least a first portion that is set in a spiral with the inner face facing inwardly and the outer face facing outwardly; at least one elongated electrically conductive heating element imbedded in the elongated strip of dielectric material; a thermostat operably coupled to the heating element, wherein the thermostat is encapsulated in an elastomeric dielectric material that is bonded to the dielectric elastomeric material of the strip of dielectric material; and an electrical power line extending from the thermostat for supplying power to the heater.