US PATENT SUBCLASS 29 / 243.521
.~.~.~.~ Comprising driver for snap-off-mandrel fastener; e.g., Pop (TM) riveter

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
243.5  DF  .~ Overedge assembling means {5}
243.517  DF  .~.~ Annular work {2}
243.519  DF  .~.~.~ With second workpiece inside annular work one workpiece moved to shape the other {2}
243.521.~.~.~.~ Comprising driver for snap-off-mandrel fastener; e.g., Pop (TM) riveter {5}
243.522  DF  .~.~.~.~.~> Including near side fastener shaping tool
243.523  DF  .~.~.~.~.~> Pneumatic- or fluid-actuated tool {1}
243.526  DF  .~.~.~.~.~> Having rotary drive mechanism
243.527  DF  .~.~.~.~.~> Having allochiral actuating handles
243.528  DF  .~.~.~.~.~> Having repositionable annulus engaging tool

DEFINITION

Classification: 29/243.521

Comprising driver for snap-off-mandrel fastener: e.g., pop (tm) riveter:

(under subclass 243.519) Apparatus wherein a first tool engages an annular end surface of a tube-like workpiece, which surface generally faces the device, which first tool includes a passageway coaxial with the tubular axis of that workpiece, and wherein a second tool functions within that passageway to engage a shank portion of a second workpiece extending through the tubular axis of the work and through the coaxial passageway, which first tool urges against the annular surface and which second tool reactively pulls against the shank with sufficient force moves the second workpiece with respect to the first and to ultimately exceed the tensile strength of the shank portion and thereby divide one portion of the shank from the remainder thereof, which remainder serves with the tubular first workpiece as a fastener.

(1) Note. The first and second workpiece of this subclass are normally supplied in the magazine as an assembly and are to be brought into assembly with another work part not originating in the storage chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

812.5, for a driver for a snap-off-mandrel fastener including a fastener supply magazine.