Invention Grant
- Patent Title: Pipe retriever
- Patent Title (中): 管道猎犬
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Application No.: US13595279Application Date: 2012-08-27
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Publication No.: US08851796B2Publication Date: 2014-10-07
- Inventor: John M. Heieie
- Applicant: John M. Heieie
- Applicant Address: US AZ Casa Grande
- Assignee: Southeast Directional Drilling, LLC
- Current Assignee: Southeast Directional Drilling, LLC
- Current Assignee Address: US AZ Casa Grande
- Agency: Honigman Miller Schwartz and Cohn LLP
- Main IPC: E21B31/18
- IPC: E21B31/18 ; E21B7/28 ; F16L55/18 ; F16L55/26 ; H02G1/08 ; F16L1/028

Abstract:
A pipe retriever for retrieving an unsecured pipe has a head connectable to a drilling pipe and defines a longitudinal axis. The longitudinal axis of the head is arranged substantially parallel to a longitudinal axis of the drilling pipe when connected. A tail extends from the head at an angle with respect to the longitudinal axis. The tail defines a hook shape having inward and outward surfaces. The inward hook surface defines a pipe recess sized to receive the unsecured pipe.
Public/Granted literature
- US20140056647A1 Pipe Retriever Public/Granted day:2014-02-27
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