Electric heating – Heating devices – Resistive element: igniter type
Patent
1978-03-03
1981-03-10
Bartis, A.
Electric heating
Heating devices
Resistive element: igniter type
48103, 62 52, 137341, 219272, 219302, 219308, 219328, 222 3, 239136, 431208, F17C 702, F22B 128, F23D 1144, C10G 924
Patent
active
042556465
ABSTRACT:
A compact, economical electrically heated vaporizer having a fast response time and capable of vaporizing liquified petroleum gas at a rate of ten to forty gallons or more per hour with safety and without excessive superheating and/or cracking of the liquified petroleum gas utilizes a metal casting having a closed internal cavity separated into two chambers by an integral barrier. The casting serves as a pressure vessel and heat sink as well as providing a heated interface between electric resistance heaters received in passageways in the barrier and the liquified petroleum gas. The heat generated by the heaters is disseminated uniformly throughout the casting surrounding the chambers. The liquified petroleum gas inlet at one end of the casing connects with the end of one chamber. Multiple small passageways in the barrier at the other end of the casting connect the other end of the one chamber to the adjacent end of the other chamber. The passageways are configured to create a turbulent flow which improves heat transfer. An outlet connects with the other end of the other chamber for discharge of the vaporized gas. The electrical and temperature controls for controlling the operation of the heaters and the flow of liquified petroleum gas through the chambers are housed within an enclosed chamber formed by an end cover on the other end of the casting. The temperature sensors for the temperature controls are received in passageways in the barrier.
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Densmore Bruce D.
Dragoy Jens T.
Bartis A.
Sam Dick Industries, Inc.
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