US PATENT SUBCLASS 29 / 812.5
.~.~.~ 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}
809  DF  .~ With magazine supply {3}
811.2  DF  .~.~ Assembling means comprising hand-manipulatable implement {6}
812.5.~.~.~ Comprising driver for snap-off-mandrel fastener; e.g., Pop (TM) riveter

DEFINITION

Classification: 29/812.5

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

(under subclass 809.2) 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 to move 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:

243.521+, for a driver for a snap-off-mandrel fastener, generally.

SEE OR SEARCH CLASS

72, Metal Deforming,

391.6, for a device including concentric or telescoped deforming tools wherein a tool fits inside a hollow metal fastener workpart to reshape that workpart into engagement with another member in which the fastener is fitted for securement, wherein no part of the device is in engagement with the other member.