US PATENT SUBCLASS 439 / 614
.~.~ Having three or more contacts (e.g., for three-way lamp)

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

611  DF  WITH VITREOUS-TYPE ENVELOPE (E.G., BASE OF LAMP OR VACUUM TUBE) {5}
613  DF  .~ Connector of the type having only concentric annular contacts or annular contact disposed concentrically about an axial contact {2}
614.~.~ Having three or more contacts (e.g., for three-way lamp)

DEFINITION

Classification: 439/614

Having three or more contacts (e.g.., for three-way lamp):

(under subclass 613) Electrical connector wherein the coupling part carried by the glasslike body carries at least three contacts which are spaced-apart and electrically insulated from one another, and wherein at least two of the contacts are disposed symmetrically around and spaced apart from the longitudinal axis along which the coupling part is intended to be engaged and coupled with its counterpart.