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. 14, 1993
Filed:
Apr. 17, 1991
Applicant:
Inventor:
Dwight S Nunley, Gretna, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; F16L / ;
U.S. Cl.
CPC ...
285229 ; 138121 ; 285226 ; 285114 ;
Abstract
Tubulars for casing a well borehole which are drilled by high angle or horizontal drilling techniques. The tubulars contain an annularly disposed upset whose cross sectional shape is omega-like. This omega-like upset enables the tubulars to be set around the curved section of the borehole without detrimental buckling.