Invention Grant
- Patent Title: Elliptical undercut shoulder for specialty pipe connections
- Patent Title (中): 用于特殊管道连接的椭圆底切肩
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Application No.: US13593932Application Date: 2012-08-24
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Publication No.: US08967675B2Publication Date: 2015-03-03
- Inventor: Vinh K. Do , Joseph William Pallini, Jr. , Kevin Edward O'Dell
- Applicant: Vinh K. Do , Joseph William Pallini, Jr. , Kevin Edward O'Dell
- Applicant Address: US TX Houston
- Assignee: Vetco Gray Inc.
- Current Assignee: Vetco Gray Inc.
- Current Assignee Address: US TX Houston
- Agency: Bracewell & Giuliani LLP
- Main IPC: F16L35/00
- IPC: F16L35/00

Abstract:
A tubular connector connects two tubulars of a string of tubular members. The tubular connector has a pin end tubular member having an axis and a pin end. A pin end flange is positioned on an outer diameter of the pin end and has an undercut adjacent the union of the pin end flange with the pin end. The tubular connector also has a box end tubular member having a box end. A box end shoulder is adjacent the union of the box end with the box end tubular member. The box end shoulder has an undercut thereon. The pin end is secured to the box end so that the pin end tubular member and the box end tubular member are joined, stresses applied to the pin end tubular member and the box end tubular member are distributed through the undercuts.
Public/Granted literature
- US20140054890A1 ELLIPTICAL UNDERCUT SHOULDER FOR SPECIALTY PIPE CONNECTIONS Public/Granted day:2014-02-27
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