Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Having means to facilitate explosive driving
Patent
1993-03-12
1994-03-08
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Having means to facilitate explosive driving
411480, 411485, F16B 1500, F16B 1502
Patent
active
052922162
ABSTRACT:
A fastener assembly including an elongate annular drive pin having a head on one end and being tapered substantially to a point on an opposite end and a clip member having first and second opposite sides, the first side capable of engaging a desired surface into which the drive pin is driven and the second opposite side including a tubular chimney portion extending therefrom a predetermined distance and formed as a continuous substantially annular member having a central bore extending through the chimney portion and the clip member, the bore having a non-annular cross-sectional configuration on at least a longitudinal portion thereof to provide discontinuous contact about the annular periphery of the drive pin enabling the drive pin to be press fitted within the longitudinal portion of the bore to releasably retain the drive pin to the clip member prior to use and further enabling the chimney portion to positively guide and align the drive pin as it is driven while simultaneously providing controlled outward curling of a distal end of the chimney portion upon driving the drive pin through the bore.
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patent: 5110247 (1992-05-01), Losada
Illinois Tool Works Inc.
Wilson Neill R.
LandOfFree
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