Invention Grant
- Patent Title: Earth-boring bit with shear cutting elements
- Patent Title (中): 带切割元件的钻孔钻头
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Application No.: US11393298Application Date: 2006-03-30
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Publication No.: US07673709B2Publication Date: 2010-03-09
- Inventor: Floyd C. Felderhoff , Rudolf Carl Pessier
- Applicant: Floyd C. Felderhoff , Rudolf Carl Pessier
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Bracewell & Giuliani LLP
- Main IPC: E21B10/52
- IPC: E21B10/52

Abstract:
An earth-boring bit has a bit body and at least one cone for rotation relative to the bit body. The cone has a gage surface and a nose area separated by a central area. A nose insert is located in the nose area. The nose insert has a barrel located within a hole in the nose area and an outer end protruding from the cone, the outer end has a perimeter that is a plane perpendicular to a barrel axis of the nose insert.
Public/Granted literature
- US20060219442A1 Earth-boring bit with shear cutting elements Public/Granted day:2006-10-05
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