Tools – Wrench – screwdriver – or driver therefor – Stud-removal and implacement
Reexamination Certificate
2006-12-26
2006-12-26
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Stud-removal and implacement
C081S060000, C081S063200
Reexamination Certificate
active
07152508
ABSTRACT:
A combination ratchet wrench having a standard open-type or box-type wrench at one end thereof and a ratcheting extraction box at the other end thereof. The ratchet extraction wrench box is connected by a ratcheting mechanism to the wrench that allows rotation of the ratchet extraction wrench box relative to the wrench only in one direction. The ratchet extraction wrench box is provided with a fastener extraction head that has an interior bore extending inwardly from a receiving end. The bore has a plurality of helically-shaped grooves, each extending from the receiving end and curve radially and inwardly towards the central axis of the bore to form sharp ridges that extend in a helical fashion inside the bore. When the fastener extraction is placed over a fastener head, the ridges “bite” into the material of the fastener. Because the extraction head is formed as an integral part of the wrench there is no need to have a separate turning tool. Because a separate torque producing tool is not required and the wrench has a narrow profile, the extraction wrench can be used in tight spaces.
REFERENCES:
patent: 1590200 (1926-06-01), McGluckin
patent: 3161090 (1964-12-01), McLellan
patent: 3996819 (1976-12-01), King
patent: 4440047 (1984-04-01), Robbins
patent: 4607547 (1986-08-01), Martus
patent: 4671141 (1987-06-01), Hanson
patent: 4781082 (1988-11-01), Swertz
patent: 4947712 (1990-08-01), Brosnan
patent: 4991468 (1991-02-01), Lee
patent: 5499560 (1996-03-01), Aeschliman
patent: 5551320 (1996-09-01), Horobec et al.
patent: 5737981 (1998-04-01), Hildebrand
patent: 5857390 (1999-01-01), Whiteford
patent: 5931064 (1999-08-01), Gillespie
patent: 5979274 (1999-11-01), Hsieh
patent: 6003411 (1999-12-01), Knox et al.
patent: 6044944 (2000-04-01), Adams et al.
patent: 6047620 (2000-04-01), Kozak et al.
patent: 6134990 (2000-10-01), Ling et al.
patent: 6230591 (2001-05-01), Ling et al.
patent: 6339976 (2002-01-01), Jordan
patent: 6389931 (2002-05-01), Delaney et al.
patent: 6598498 (2003-07-01), Pigford et al.
patent: 6644148 (2003-11-01), Hu
patent: 6666112 (2003-12-01), Hu
patent: 6732614 (2004-05-01), Hu
patent: 6745647 (2004-06-01), Wang
patent: 6807882 (2004-10-01), Hu
patent: 6877402 (2005-04-01), Pigford et al.
patent: 2005/0150331 (2005-07-01), Horobec
J.H. Williams Advertisement, page No. 3, TURBOSOCKET Salvage Sockets.
McCalley, Jr. Richard Michael
Smith Robin E.
Vogeler Mark T.
Irwin Industrial Tool Company
Moore & Van Allen PLLC
Scruggs Robert
Thomas David B.
Williamson Dennis J.
LandOfFree
Ratchet extraction 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 Ratchet extraction wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchet extraction wrench will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3702012