US PATENT SUBCLASS 219 / 143
.~.~.~.~ Spring biased

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
121.11  DF  .~ By arc {16}
138  DF  .~.~ Electrode holder (e.g., spring biased tong) {4}
142  DF  .~.~.~ Plunger jaw (e.g., screw actuated) {1}
143.~.~.~.~ Spring biased

DEFINITION

Classification: 219/143

(under subclass 142) Subject matter in which the longitudinally moving jaw is spring biased.