US PATENT SUBCLASS 411 / 501
.~ Having plastically flowable or deflectable end, e.g., rivet, etc.

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

500  DF  HEADED FASTENER ELEMENT {2}
501.~ Having plastically flowable or deflectable end, e.g., rivet, etc. {2}
502  DF  .~.~> Plural end legs {1}
504  DF  .~.~> Solid end type {2}

DEFINITION

Classification: 411/501

Having plastically flowable or deflectable end, e.g., rivet, etc.:

(under subclass 500) Subject matter wherein either the head or an opposing end of the fastening means consists of a polycrystalline metallic grain structure which when subjected to an externally applied force is plastically flowable thereby producing a securing head structure or deflected end structure.

SEE OR SEARCH CLASS

470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus,

27+, for processes of making rivets.