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
1994-06-30
1995-02-28
Smith, Scott A.
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.
411457, 411920, A61B 1704
Patent
active
053931866
ABSTRACT:
A staple with parallel legs and two parallel cross pieces therebetween comprising a pair of parallel legs, the legs being formed with upper ends and lower ends, the lower edges being bevelled to facilitate movement into the surface to which the staple is to be secured; an upper first cross piece formed as an integral extension of the legs and extending therebetween at the upper end of the legs; and an intermediate second lower cross piece positioned parallel with the first upper cross piece at a location intermediate the ends of the legs and integrally formed therebetween, the entire staple including its legs and its first cross piece and its second cross piece being integrally formed of a rigid material.
REFERENCES:
patent: 202786 (1878-04-01), Burnham
patent: 366555 (1887-07-01), Brewington
patent: 644471 (1900-02-01), Schon, Jr.
patent: 1774212 (1930-08-01), Price
patent: 1841353 (1932-01-01), Boggess
patent: 2308611 (1943-01-01), La Place
patent: 4887601 (1989-12-01), Richards
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