Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Including integral locking means
Patent
1988-06-06
1989-07-11
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
411455, 411922, 47 33, F16B 1508, A01G 100
Patent
active
048466557
ABSTRACT:
A lawn spike for anchoring objects, such as lawn edging, within a lawn utilizes a head and a pointed plastic shank shaped to enhance the strength of the shank and to cooperate with the ground, when operatively driven therein, to resist withdrawal of the spike therefrom. The shank includes a substantially cylindrical main section and a plurality of frusto-conical sections positioned about and spaced along the length of the main section so that each of the frusto-conical sections tapers toward the pointed end of the shank. The shank portion also includes a plurality of strengthening ribs formed with and extending longitudinally along the cylindrical periphery of the main section and which are also formed with so as to be joined to adjacent frusto-conical sections.
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Vinylex Corporation
Wilson Neill R.
LandOfFree
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