The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2011
Filed:
Sep. 26, 2007
Hagen W. Dost, Chicago, IL (US);
Patrick M. Mcauliffe, Chicago, IL (US);
Javier Ibarra, Schaumburg, IL (US);
Alexander D. Socha, Altamonte Springs, FL (US);
Hagen W. Dost, Chicago, IL (US);
Patrick M. McAuliffe, Chicago, IL (US);
Javier Ibarra, Schaumburg, IL (US);
Alexander D. Socha, Altamonte Springs, FL (US);
Robert Bosch GmbH, Stuttgart, DE (US);
Abstract
A tool bit providing a combined drill bit and reamer is disclosed herein. The tool bit comprises an axial bit shaft including a bore end and a shank end. At least one helical land portion is provided on the bit shaft. The at least one helical land portion includes a cutting edge and a trailing edge. At least one reamer blade is provided on the helical land portion at the bore end of the bit shaft. The at least one reamer blade includes a substantially axial cutting edge. A tip arrangement is also included on the bore end of the bit shaft. The tip arrangement includes a center blade positioned between peripheral cutting blades.