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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US438777624 Nov 198014 Jun 1983Well case driving anvil
US441504724 Nov 198015 Nov 1983Downhole case driving apparatus for impact drills
US550322414 Feb 19952 Apr 1996Big Iron Drilling Ltd.Casing drive apparatus
US55907265 Jun 19957 Jan 1997Drilling apparatus
US58395198 Nov 199624 Nov 1998Sandvik ABMethods and apparatus for attaching a casing to a drill bit in overburden drilling equipment
US595722412 Aug 199728 Sep 1999Double bit assembly and method of using the same
US610620012 May 199922 Aug 2000Techmo Entwicklungs-und Vertriebs GmbH
ALWAG" Tunnelausbau Gesellschaft m.b.H.
Process and device for simultaneously drilling and lining a hole
US741603614 Apr 200626 Aug 2008Baker Hughes IncorporatedLatchable reaming bit
US767370630 Mar 20069 Mar 2010Sandvik Intellectual Property ABDown-the-hole hammer with pilot and method of enlarging a hole