Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Multiple prong – e.g. – nailing plate – staple – etc.
Patent
1997-07-05
2000-09-05
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Multiple prong, e.g., nailing plate, staple, etc.
411475, 411920, F16B 1500, F16B 1502
Patent
active
061133329
ABSTRACT:
An extractable fastener system is disclosed using a staple configured to secure various pliant, planar and three-dimensional materials to a substrate, which staple has a retention base including a retention arch for positioning and securing three-dimensional linear retention material to secure pliant materials to the substrate, the staple also includes an integral extraction arch or arches thereon to facilitate access for an extraction tool to facilitate removal of the staple from the work.
REFERENCES:
patent: 506861 (1893-10-01), Prentice
patent: 770479 (1904-09-01), Shuster
patent: 2741147 (1956-04-01), Marano
patent: 2906547 (1959-09-01), Bortner
patent: 3960147 (1976-06-01), Murray
patent: 4691427 (1987-09-01), Hill
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