Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Plural attached fasteners
Patent
1997-10-07
1998-11-17
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Plural attached fasteners
411966, 206347, F16B 1508, F16B 3900
Patent
active
058367322
ABSTRACT:
The present invention is a fastener assembly including a row of fasteners maintained in position by a carrier. The carrier includes a plurality of adjacent sleeves, each of which includes an upper breakable portion, a middle wall portion, and a lower breakable portion. When a fastener is driven into a work piece, the upper and middle portions of the fastener sleeve break away and the lower portion breaks into fragments, so that no residual sleeve parts remain with the fastener. This is accomplished by forming the carrier from a mixture of a stiff polyolefin material and a particulate filler to impart the necessary brittleness to the carrier sleeves. Also, the lower portion of the sleeve includes fragmentable tabs joined at wall junctions which are structurally weaker than the tabs, to facilitate fragmentation between the tabs.
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Ernst Richard J.
Gupta Harish C.
Illinois Tool Works Inc.
Wilson Neill R.
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