Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate
2007-04-24
2007-04-24
Neuder, William (Department: 3672)
Boring or penetrating the earth
With tool shaft detail
C403S383000
Reexamination Certificate
active
10819672
ABSTRACT:
A coupler for use in connecting together in a driving relationship a first member and a second member in a drill bit assembly. The coupler includes an elongate body that has opposite axial forward and rearward ends as well as contains a longitudinal bore. The elongate body further has a mediate collar wherein there is a forward body portion axial forward of the collar and a rearward body portion axial rearward of the collar. The forward body portion is suitable to drivingly engage the first member. The rearward body portion is suitable to drivingly engage the second member. Each one of the forward and rearward body portions carries seal. The elongate body further carries a retention member.
REFERENCES:
patent: 3554306 (1971-01-01), Wilburn
patent: 4175757 (1979-11-01), Emmerich
patent: 4206821 (1980-06-01), Emmerich
patent: 4454922 (1984-06-01), Jamison et al.
patent: 4615402 (1986-10-01), Eisenloeffel
patent: 4632195 (1986-12-01), Emmerich
patent: 4907660 (1990-03-01), Staggs et al.
patent: 5020780 (1991-06-01), Woodings
patent: 5400861 (1995-03-01), Sheirer
patent: 5833017 (1998-11-01), Woods et al.
patent: 5927411 (1999-07-01), Sheirer
patent: 6189632 (2001-02-01), Warden
patent: 6367567 (2002-04-01), Massa et al.
patent: 6516904 (2003-02-01), Rein, Sr. et al.
patent: 6533049 (2003-03-01), Rein, Sr. et al.
patent: 6598688 (2003-07-01), Wang
patent: 2003/0051920 (2003-03-01), Bise et al.
patent: 2004/0016573 (2004-01-01), Rein et al.
patent: 2004/0238223 (2004-12-01), Brady
Kennametal Catalog B00-023(10)J0—entitled “Cutting and Drilling Systems” (2000) (84 pages).
Bise Douglas E.
Boggs Joseph C.
Kennametal Inc.
Neuder William
Smith Matthew W.
LandOfFree
Coupler and roof drill bit assembly using such coupler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupler and roof drill bit assembly using such coupler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupler and roof drill bit assembly using such coupler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3797842