US PATENT SUBCLASS 219 / 612
.~.~.~.~ Seam bonding

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~.~.~ Seam bonding {2}
613  DF  .~.~.~.~.~> With impeder
614  DF  .~.~.~.~.~> With guiding device

DEFINITION

Classification: 219/612

Seam bonding:

(under subclass 607) Subject matter wherein a tube is formed by permanently joining together two opposing outer edges of a C cross-sectional elongated metal strip.

SEE OR SEARCH CLASS

228, Metal Fusion Bonding,

144+, for edge joining of one piece blank or strip.