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:
Aug. 12, 2014
Filed:
Sep. 27, 2012
Chiaki Akamatsu, Osaka, JP;
Yasuhiro Yamamoto, Osaka, JP;
Shigeo Nagasaku, Osaka, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
An apparatusfor evaluating the performance of a threaded joint for oil country tubular goods using a first steel pipe Pand a second steel pipe Phas a basewhich holds a first steel pipe Pin an upright position with an upper end of the first steel pipe Pextending above the base and the remainder partly disposed under ground. A support membermounted on the baseextends alongside the first steel pipe P. A second steel pipe Pis suspended above the first steel pipe Pby a suspending mechanism. A threaded joint can be connected and disconnected by first and second tongsandwhich rotate the second steel pipe Pwith respect to the first steel pipe P. A stabilizermounted on the support membercan limit the radius of gyration of the second steel pipe P
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile