Stoves and furnaces – Heaters – Chemical
Patent
1978-12-06
1981-05-05
Ross, Herbert F.
Stoves and furnaces
Heaters
Chemical
206222, 132 362B, F24J 100, B65D 2508
Patent
active
042652162
ABSTRACT:
A self-contained heat recoverable exothermic chemical heater to provide heat to a recoverable sleeve. The heat recoverable heater provides superior thermal contact as the sleeve recovers and, in particular, after recovery when additional heat is required to melt an adhesive. A first and second heat bag, each having a different chemical means disposed in its separate compartments, are bonded together. The separate compartments maintain the correct proportions and proper distribution of the chemical means for optimum mixing. The rupturable barrier enclosing each of the compartments can be almost totally removed to allow the rapid and complete mixing of the chemical means without permitting any of the chemical means to escape. The removal of the rupturable barrier causes the chemical means to mix, thereby generating heat. The adhesive partitioning the heat bags into separate compartments releases its bond as a result of the increasing temperature. This procedure is a continuous mass of hot chemicals, allowing the uniform application at heat to all surfaces of the heat recoverable sleeve.
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Jensen Phillip C.
Marshall Larry J.
Raychem Corporation
Ross Herbert F.
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