Method for producing heat transfer tube with insitu heater

Details Method for producing heat transfer tube with insitu heater Method for producing heat transfer tube with insitu heater

1990-07-30

1991-06-11

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

295273, 29890045, B23P 1526

Patent

active

050221507

ABSTRACT:
An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density multilayered ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.

REFERENCES:
patent: 3464812 (1969-09-01), Utech et al.
patent: 3604598 (1971-09-01), Kappmeyer
patent: 3677332 (1972-07-01), Smiernow
patent: 4024300 (1977-05-01), Svec
patent: 4396824 (1983-08-01), Fiegl et al.
patent: 4966201 (1990-10-01), Svec et al.

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