US PATENT SUBCLASS 411 / 325
.~ Externally threaded element includes an axially extending opening in its free end for receiving an expander member

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

190  DF  HAVING STRUCTURE TO RESTRICT ROTATION OF THREADED, MATING PIECES (E.G., NUT LOCK) {13}
325.~ Externally threaded element includes an axially extending opening in its free end for receiving an expander member

DEFINITION

Classification: 411/325

Externally threaded element includes an axially extending opening in its free end for receiving an expander member:

(under subclass 190) Device wherein the externally threaded element includes, in that end which is opposite its headed end, a longitudinal bore, cavity, slot, etc., into which a distinct member of nonuniform thickness (e.g., a cone, wedge, etc.) is moved for forcing a portion of that element generally radially outwardly, the internally threaded element being so located on the externally threaded element that the radial movement does not take place in the region of their threaded interengagement.

(1) Note. See (1) Note of subclass 271 above.

(2) Note. See (2) Note of subclass 271 above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

271, for a structurally similar opening and member, but wherein the expansion of the externally threaded element takes place in the region of its threaded interengagement with the other element.