Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Including integral locking means
Patent
1993-06-28
1995-02-21
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Including integral locking means
411452, 411455, 411496, F16B 1508
Patent
active
053910290
ABSTRACT:
A nail having an elongate shank, a head at one end of the shank and a tip portion at the other end. A lateral step is formed in the shank at a location spaced from both the head and the tip so as to divide the shank into a relatively small diameter penetrating portion which is adjacent the tip, and a relatively large diameter gripping portion which is adjacent the head. Any of a variety of gripping features, such as ribs or teeth, could be provided on the gripping portion to assist its grip within a member to which the nail is to be secured.
REFERENCES:
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patent: 4846655 (1989-07-01), Gulley
patent: 4932820 (1990-06-01), Schniedermeier
W. A. Deutsher Pty. Ltd.
Wilson Neill R.
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