US PATENT SUBCLASS 439 / 550
.~.~ With opening encircling retaining collar

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

527  DF  WITH SUPPORTING MEANS FOR COUPLING PART {18}
544  DF  .~ Coupling part or mating part extending into panel opening {6}
550.~.~ With opening encircling retaining collar {1}
551  DF  .~.~.~> Concentrically screw threaded collar

DEFINITION

Classification: 439/550

With opening encircling retaining collar:

(under subclass 544) Coupling part combined with an annular member adapted to engage the coupling part and the sheet and secure them together; wherein the annular member is adapted to extend about and be coaxial with the opening through the generally planar sheet.

(1) Note. The device of this subclass must comprise an electrical connector, the collar may also comprise an electrical connector.

SEE OR SEARCH THIS CLASS, SUBCLASS:

551, for a collar having a concentric thread opening or insert for a retaining screw.