US PATENT SUBCLASS 219 / 86.22
.~.~.~ With separately applied pressure and heat

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}
86.22.~.~.~ With separately applied pressure and heat

DEFINITION

Classification: 219/86.22

With separately applied pressure and heat:

(under subclass 86.1) Subject matter wherein the pressure and heat are not applied simultaneously during the welding process.