Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2007-10-23
2007-10-23
Ashley, Boyer D. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C081S058000, C081S058100, C081S058400, C081S124400
Reexamination Certificate
active
11187779
ABSTRACT:
An oil drain plug wrench is provided to enable a user to more easily remove and install an oil drain plug. The wrench includes a rotor with two cavities on opposite sides of a rotor. When either of the cavities engages a workpiece, the wrench is capable of applying torque to the workpiece in a first rotational direction and ratcheting in a second rotational direction. A flange is provided on the outer diameter of the rotor to allow a user to remove or install an oil drain plug by hand.
REFERENCES:
patent: 127902 (1872-06-01), Leonard
patent: 161022 (1875-03-01), Freeman
patent: 272822 (1883-02-01), Womelsdorff
patent: 1191873 (1916-07-01), Cressey et al.
patent: 3349653 (1967-10-01), Kaufman et al.
patent: 3709073 (1973-01-01), Kurtz
patent: 3838614 (1974-10-01), O'Donnell
patent: 3875828 (1975-04-01), Evans
patent: 4663998 (1987-05-01), Parsons et al.
patent: 4770071 (1988-09-01), Steier
patent: 4796492 (1989-01-01), Liou
patent: 4800786 (1989-01-01), Arnold et al.
patent: 4807500 (1989-02-01), Main
patent: 4825732 (1989-05-01), Arnold
patent: 4836059 (1989-06-01), Arnold
patent: 4889020 (1989-12-01), Baker
patent: 4991468 (1991-02-01), Lee
patent: 5197358 (1993-03-01), Hsu
patent: 5277088 (1994-01-01), Vasichek et al.
patent: 5454283 (1995-10-01), Stefano
patent: 5467672 (1995-11-01), Ashby
patent: 5647252 (1997-07-01), Miner
patent: 5653151 (1997-08-01), Blacklock
patent: 5709137 (1998-01-01), Blacklock
patent: 5842391 (1998-12-01), Chaconas
patent: 6688195 (2004-02-01), Hsien
patent: 6918323 (2005-07-01), Arnold et al.
patent: 7051623 (2006-05-01), Chaconas
patent: 7159491 (2007-01-01), Chaconas et al.
patent: 2004/0093995 (2004-05-01), Hu
Ashley Boyer D.
Easco Hand Tools Inc.
Muller Bryan R.
Nelson Mullins Riley & Scarborough L.L.P.
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