Abstract: A threaded connector including female thread and male thread. The female thread is symmetrically disposed on both ends of a coupling. The male thread is disposed at an end of a pipe. The female thread includes buttress thread. A torque shoulder is disposed in front of the buttress thread. The female thread is connected to the torque shoulder via a tool withdrawal groove. A protruding threaded segment is disposed on any one of a fourth to seventh tooth of the female thread to prevent high pressure gas from leaking.
Type:
Grant
Filed:
September 22, 2011
Date of Patent:
June 23, 2015
Assignee:
Tianjin Pipe (Group) Corporation
Inventors:
Jing Wang, Zhiqian Xu, Xiaoqing Lu, Chunzhong Wang, Jun Zhang, Long Yan, Tao Chen, Li Mei, Bin Shi
Abstract: A threaded connector including female thread and male thread. The female thread is symmetrically disposed on both ends of a coupling. The male thread is disposed at an end of a pipe. The female thread includes buttress thread. A torque shoulder is disposed in front of the buttress thread. The female thread is connected to the torque shoulder via a tool withdrawal groove. A protruding threaded segment is disposed on any one of a fourth to seventh tooth of the female thread to prevent high pressure gas from leaking.
Type:
Application
Filed:
September 22, 2011
Publication date:
January 19, 2012
Applicant:
TIANJIN PIPE (GROUP) CORPORATION
Inventors:
Jing WANG, Zhiqian XU, Xiaoqing LU, Chunzhong WANG, Jun ZHANG, Long YAN, Tao CHEN, Li MEI, Bin SHI