Invention Grant
- Patent Title: Shank assembly
- Patent Title (中): 柄组件
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Application No.: US11947644Application Date: 2007-11-29
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Publication No.: US08007051B2Publication Date: 2011-08-30
- Inventor: David R. Hall , Ronald B. Crockett , Jeff Jepson , Tyson J. Wilde , Jad Mills , Scott Dahlgren , Jonathan Marshall
- Applicant: David R. Hall , Ronald B. Crockett , Jeff Jepson , Tyson J. Wilde , Jad Mills , Scott Dahlgren , Jonathan Marshall
- Applicant Address: US TX Houston
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Houston
- Agency: Holme Roberts & Owen LLP
- Main IPC: E21C35/197
- IPC: E21C35/197

Abstract:
In one aspect of the invention, a pick comprises a carbide bolster disposed intermediate an impact tip and a shank assembly. The impact tip comprises a superhard material bonded to a carbide substrate, and the tip is bonded to the bolster opposing a base of the bolster. The shank assembly comprises a central axis, a first end that protrudes into a cavity formed in the base of the bolster, and also an inducible attachment mechanism disposed proximate the first end. The inducible attachment mechanism is adapted to attach the shank assembly to the carbide bolster and restrict movement of the shank assembly with respect to the carbide bolster. The attachment mechanism may restrict movement of the shank assembly in a direction parallel to the central axis.
Public/Granted literature
- US20080067859A1 Shank Assembly Public/Granted day:2008-03-20
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