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:
Sep. 12, 1995
Filed:
Mar. 04, 1994
Applicant:
Inventor:
Kent E Cordry, Clayton, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175 20 ; 175 22 ; 166157 ;
Abstract
Described is a device for driving into the ground which includes a drive point, a fluid passage section, an annular seal and an annular drive rod. The annular seal is the widest member and fits snugly in a borehole formed after the device is driven into the ground to form a seal. Specially configured drive points are also described.