Tool for tightening and loosening a wing nut or wing screw...

Details Tool for tightening and loosening a wing nut or wing screw... Tool for tightening and loosening a wing nut or wing screw...

2006-10-31

2006-10-31

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

C081S120000, C081S121100, C081S125000

Reexamination Certificate

active

07127970

ABSTRACT:
A tool for tightening and loosening a wing nut having several wings that secures a motor vehicle wheel includes has a base element with three detachably attached contact bodies for the individual wings. The bodies serve to transfer the torque needed for tightening and loosening the wing nuts. The end of each contact body facing the wheel is provided with a projection that, for purposes of avoiding axial slippage of the tool off the wing nut in the functional position shown in FIGS.2and3,engages behind a wing. The projection in question is dimensioned in such a manner that a slot located between adjacent projections is only slightly larger than the corresponding wing. Each of the contact bodies, which are configured as cleats, has a contact surface that can be placed against the wing during either tightening or loosening. In order to apply the torque, the base element has a receptacle configured as a square opening to receive a commercially available torque tool.

REFERENCES:
patent: 3151512 (1964-10-01), Charczenko
patent: 5697268 (1997-12-01), Makovsky et al.
patent: 5698268 (1997-12-01), Takagi et al.
patent: 6294719 (2001-09-01), Palecki et al.
patent: 6314841 (2001-11-01), Burk et al.
patent: 6715384 (2004-04-01), Kozak
patent: 87 01 555 (1987-04-01), None
patent: 88 14 967 (1989-05-01), None
patent: 93 18 159 (1994-01-01), None
patent: 295 19 672 (1996-02-01), None
patent: 200 02 763 (2000-06-01), None
patent: 113540 (1918-02-01), None

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