US PATENT SUBCLASS 219 / 614
.~.~.~.~.~ With guiding device

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

600  DF  INDUCTIVE HEATING {7}
602  DF  .~ Metal working {1}
603  DF  .~.~ Bonding {7}
607  DF  .~.~.~ Tube (i.e., pipe) {5}
612  DF  .~.~.~.~ Seam bonding {2}
614.~.~.~.~.~ With guiding device

DEFINITION

Classification: 219/614

With guiding device:

(under subclass 612) Subject matter including an arrangement of roller-type apparatus that curves outer edges of an elongated metal strip inward to form a C cross-section or arranged to direct the tube movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61.13, and 61.3, for resistance heating cylinders with edge guidance means.

647, for an inductive heating device with workpiece support.