Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Reexamination Certificate
2008-03-25
2008-03-25
Shakeri, Hadi (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
C081S124200, C081S472000
Reexamination Certificate
active
11580280
ABSTRACT:
A tool including a tubular wrench portion and a hollow grasping portion. The tubular wrench portion has a first end, a second end, a hollow body portion located between the first and second ends and a plurality of arc portions located at the first end. The hollow body portion has a first slot extending from the first end to the second end. The arc portions have an outer surface for installing the C-shaped fastening ring thereon to generate torsion and an inner surface formed with a shaped portion to engage with a shaped outer surface of a connector ring. The arc portions are outwardly extended by the torsion when a predetermined torsion is enough to deform the arc portions of the tubular wrench portion.
REFERENCES:
patent: 508314 (1893-11-01), Hill
patent: 1092574 (1914-04-01), Jannson
patent: 4215600 (1980-08-01), Kesselman
patent: 5415065 (1995-05-01), McMills
patent: 5507211 (1996-04-01), Wagner
patent: 5615587 (1997-04-01), Foerster, Jr.
patent: 6817272 (2004-11-01), Holland
patent: 6848920 (2005-02-01), Fox
patent: 7080581 (2006-07-01), Reese
patent: 7249540 (2007-07-01), Hacker et al.
Phoenix Communications Technologies International
Shakeri Hadi
Troxell Law Office PLLC
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