Tool for inserting and removing one-way fasteners, an off-center

Details Tool for inserting and removing one-way fasteners, an off-center Tool for inserting and removing one-way fasteners, an off-center

1998-01-14

2000-04-11

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81 532, 81451, 81438, B25B 2308

Patent

active

060476206

ABSTRACT:
A tool for removing conventional one way fasteners is provided, comprising a collar and a shank that can be removably received by the collar, wherein in the shank is configured to engage complementary regions of the fastener head. The collar includes a recess having longitudinal ridges to engage perimeter portions of the fastener head. The shank and collar cooperate to provide additional rotational force to the fastener to thereby extract the fastener, whether the fastener is flush-mounted or counter-sunk.

REFERENCES:
patent: 3135306 (1964-06-01), Mangerian
patent: 3392767 (1968-07-01), Stillwagon
patent: 3604488 (1971-09-01), Wishart
patent: 3739825 (1973-06-01), Knox
patent: 4429599 (1984-02-01), La Sante, Sr.
patent: 4716793 (1988-01-01), Tauber
patent: 5520075 (1996-05-01), Barmore
patent: 5551320 (1996-09-01), Horobec et al.

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