US PATENT SUBCLASS 439 / 416
.~.~.~.~ Piercing means comprising end of screw

Current as of: June, 1999
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439 /   HD   ELECTRICAL CONNECTORS

387  DF  CONTACT COMPRISING CUTTER (SEVERING, PIERCING, ABRADING, SCRAPING, BREAKING OR TEARING) {10}
389  DF  .~ Insulation cutter {3}
391  DF  .~.~ Conductor sheath piercing {11}
411  DF  .~.~.~ Comprising screw, screw operated cutter, or screw means to move conductor against cutter {3}
416.~.~.~.~ Piercing means comprising end of screw

DEFINITION

Classification: 439/416

Piercing means comprising end of screw:

(under subclass 411) Electrical connector wherein the penetrating contact is helically ribbed and supported for rotation about the helical axis and longitudinal movement along the helical axis as guided by the rib with respect to the remainder of the device when making contact, and wherein the axially most advanced portion of the ribbed member is utilized to penetrate and make electrical contact.