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:
Dec. 27, 2005
Filed:
Oct. 15, 2002
Applicant:
David Sherwood, Nanterre, FR;
Inventor:
David Sherwood, Nanterre, FR;
Assignee:
Compagnie du Sol, Nanterre, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B007/26 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of boring a hole using a boring system constituted by a simple auger and a dip tube slidably mounted in said auger, said dip tube being provided at its bottom end with a tool. The method comprises the following steps: