发明申请
- 专利标题: Mud diverter for earth-boring bit
- 专利标题(中): 泥土分流器为地球钻头
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申请号: US11060331申请日: 2005-02-17
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公开(公告)号: US20050178589A1公开(公告)日: 2005-08-18
- 发明人: Chih Lin , Gregory Ricks
- 申请人: Chih Lin , Gregory Ricks
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 主分类号: E21B10/22
- IPC分类号: E21B10/22 ; E21B10/25 ; E21B10/00 ; E21B10/24
摘要:
A rolling cone earth boring bit has a diverter and an arcuate segment located between the bit leg and the back face of the cone to divert debris from the seal gland area. The diverter has an oblong or oval base that inserts into a mating hole in a last machined surface of the bit. The diverter has a head that is wedge-shaped and protrudes from the hole into a clearance between the back face and the last machined surface. The head has an inner side that is spaced from an annular wall of the back face by a small uniform clearance. The head has an outer side that is oblique to the annular wall of the back face region to divert debris from the clearance. The segment is spaced from the diverter and is concentric to an axis of the bearing pin.
公开/授权文献
- US07306061B2 Mud diverter for earth-boring bit 公开/授权日:2007-12-11