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. 16, 2011
Filed:
Apr. 29, 2005
Masaaki Sugino, Nishinomiya, JP;
Miyuki Yamamoto, Izumiotsu, JP;
Michihiko Iwamoto, Wakayama, JP;
Shigeo Nagasaku, Nishinomiya, JP;
Pierre Dutilleul, Jeanlain, FR;
Gabriel Roussie, Cappelle en Pevele, FR;
Eric Verger, Gommegnies, FR;
Masaaki Sugino, Nishinomiya, JP;
Miyuki Yamamoto, Izumiotsu, JP;
Michihiko Iwamoto, Wakayama, JP;
Shigeo Nagasaku, Nishinomiya, JP;
Pierre Dutilleul, Jeanlain, FR;
Gabriel Roussie, Cappelle en Pevele, FR;
Eric Verger, Gommegnies, FR;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Vallourec Mannesmann Oil & Gas France, Aulnoye-Aymeries, FR;
Abstract
A threaded joint for steel pipes comprises a pin () and a box (). The pin has male thread (), a sealing surface (), and a shoulder surface () located on the end face of the pin. Correspondingly, the box has female thread (), a sealing surface (), and a shoulder surface () which can mate or contact with the corresponding portions of the pin. The shoulder surface () of the pin () is provided at an end face of the pin. The sealing surface () of the pin () is located on a pipe end side near the male thread (). A a nose portion () is provided on the pin () between the sealing surface () and the shoulder surface (), the nose portion () being not in contact with a corresponding portion of the box ().