Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 9, 2010
Patent Application Number
12009169
Date Filed
January 17, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A hole coring system for drilling large diameter holes with a handheld tool. The drill bit is guided by a mandrel attached to the concrete and serves as a central guidepost that ensures precise centering of the drill bit. Commonly available tools may be used to rotate the drill bit. A lever arm may be attached to the tool and used to resist any torquing action. Additionally, a brace may be attached to the lever arm which may be used to resist any torquing action.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
