Oil drain plug wrench

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Oil drain plug wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil drain plug wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil drain plug wrench will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3882326

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.