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:
May. 26, 2020
Filed:
Mar. 21, 2017
Applicant:
Benteler Steel/tube Gmbh, Paderborn, DE;
Inventors:
Ralf Koester, Schlangen, DE;
Andre Loemker, Velbert, DE;
Assignee:
BENTELER STEEL/TUBE GMBH, Paderborn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 15/00 (2006.01); F16L 9/02 (2006.01); C21D 1/26 (2006.01); C21D 9/08 (2006.01); F16L 21/00 (2006.01);
U.S. Cl.
CPC ...
F16L 9/02 (2013.01); C21D 1/26 (2013.01); C21D 9/08 (2013.01); C21D 9/085 (2013.01); F16L 15/006 (2013.01); F16L 21/002 (2013.01);
Abstract
A pipe system for oil country tubular goods (OCTG) and a method of manufacturing the OCTG pipe system is disclosed. The pipe system includes at least one OCTG pipe having a pipe body, the pipe body having at least one connection end formed in unipartite and materially integral manner with the pipe body for coupling to a second OCTG pipe. The OCTG pipe is formed in seamless fashion from a hardenable steel alloy, and the connection end has a yield strength higher than the yield strength of the pipe body.