US PATENT SUBCLASS 219 / 91.2
.~.~.~ Methods


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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
78.01  DF  .~ For bonding with pressure (e.g., resistance welding) {16}
86.1  DF  .~.~ By spot bonding {12}
91.2.~.~.~ Methods {4}
91.21  DF  .~.~.~.~> Of welding through insulation
91.22  DF  .~.~.~.~> With additional heating to same spot
91.23  DF  .~.~.~.~> With work deforming
92  DF  .~.~.~.~> Current limitation (e.g., by interposed insulation) {2}


DEFINITION

Classification: 219/91.2

Methods:

(under subclass 86.1) Subject matter including processes of spot bonding.