US PATENT SUBCLASS 439 / 639
.~.~.~ Unit includes three or more diverse types of coupling parts

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

625  DF  WITH INSULATION OTHER THAN CONDUCTOR SHEATH {10}
626  DF  .~ Plural-contact coupling part {7}
638  DF  .~.~ Two or more plural-contact coupling parts combined in one integral unit {6}
639.~.~.~ Unit includes three or more diverse types of coupling parts

DEFINITION

Classification: 439/639

Unit includes three or more diverse types of coupling parts:

(under subclass 638) Device wherein there are at least three different types of plural-contact coupling parts contained within the single unitary structure.

(1) Note. Two coupling parts are considered to be "different" if a mating plural-contact counterpart adapted to be coupled with one coupling part cannot be coupled with the other coupling part. Thus, a plural-contact plug having a male screw-thread-coupling contact and a plural-contact receptacle having a female screw-thread-coupling contact, even though complementary to one another, constitute "different" types of plural-contact coupling parts, Similarly, two receptacles having spaced prong-receiving contacts which differ in number, arrangement (i.e., relative spacing therebetween), cross-sectional shape, or size constitute "different" types of receptacles if a plug having spaced pronglike contacts is capable of mating with one receptacle but not with the other.