发明名称 |
Inserts and compacts with lead-in surface for enhanced retention |
摘要 |
An improved insert for use in a drilling device. The insert adapted to be mounted on the drilling device within a socket formed in the drilling device. The insert has a convex curved lead-in surface formed on the lower portion of the insert. The lead-in surface operates to enhance the retention of the insert within the socket during drilling operations.
|
申请公布号 |
US5755301(A) |
申请公布日期 |
1998.05.26 |
申请号 |
US19960700656 |
申请日期 |
1996.08.09 |
申请人 |
DRESSER INDUSTRIES, INC. |
发明人 |
LOVE, RAYMOND JOSEPH;CAMPOS, JR., HARRY MORALES |
分类号 |
E21B10/52;E21B10/56;E21B10/567;(IPC1-7):E21B10/52 |
主分类号 |
E21B10/52 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|