US PATENT SUBCLASS 411 / 32
.~ Made up of plural expansible segments or sections

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

15  DF  HAVING SEPARATE EXPANDER MEANS {13}
32.~ Made up of plural expansible segments or sections {1}
33  DF  .~.~> Identical segments

DEFINITION

Classification: 411/32

Plural expansible segments or sections:

(under subclass 15) Subject matter wherein the anchor or holding devices includes either (a) a single portion or zone, composed of a plurality of separate, expansible members, which portion or zone can have its circumferential extent altered or (b) a plurality of spaced portions or zones each of which can have its circumferential extent altered.

SEE OR SEARCH THIS CLASS, SUBCLASS:

432+, for multipart moveable internally threaded fastener element (e.g., nuts).