Patent ID: 7230214

Claim:
In an heater having a metal sheath encasing an heater cable, a clamp assembly attached to ends of the metal sheath for securing the metal sheath to a component for heating purposes, lead wires, and a connection where each end of the heater cable connects to a respective end of each lead wire, the improvement comprising a layer of thermoplastic adhesive surrounding the connection, and a heat shrinkable tubing surrounding the adhesive layer and being bound to the adhesive layer, the adhesive being in unhardened state and forming a seal when situated between the heat shrinkable tubing and each of an outer surface of the lead wire insulation, an outer surface of the heater cable insulation, and outer surfaces of the connection, the adhesive being a type that either does not bond to the insulation of the lead wire or the insulation of the heater cable so as to form respective unbound regions, or bonds to only one of the insulation of the lead wire or the insulation of the heater cable to leave an unbound region, compression of the metal sheath around the heat shrinkable tubing in the unbound region binding the heat shrinkable tubing to insulation in the unbound region.