Invention Grant
- Patent Title: Step-to-step wedge thread connections and related methods
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Application No.: US13310241Application Date: 2011-12-02
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Publication No.: US08496274B2Publication Date: 2013-07-30
- Inventor: David Llewellyn Mallis , Gary W. Ward
- Applicant: David Llewellyn Mallis , Gary W. Ward
- Applicant Address: US TX Houston
- Assignee: Hydril Company
- Current Assignee: Hydril Company
- Current Assignee Address: US TX Houston
- Agency: Osha Liang LLP
- Main IPC: F16L25/00
- IPC: F16L25/00

Abstract:
A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
Public/Granted literature
- US20120074690A1 STEP-TO-STEP WEDGE THREAD CONNECTIONS AND RELATED METHODS Public/Granted day:2012-03-29
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