公开(公告)号：WO1998015714A1

公开(公告)日：1998-04-16

申请号：PCT/US1997014482

申请日：1997-08-18

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  WOODS, Gerald, L. ,  BOLLMAN, Percy, D. ,  RITCHEY, Cary, D.

IPC: E21C35/19

CPC classification number: E21B10/60 ,  E21C35/19 ,  E21C2035/1806 ,  F16B21/12

Abstract: A cutting bit assembly (30) which includes a driven member (66) and a cutting bit (22) detachably connected to the driven member by a retainer (70, 72). The retainer includes a magnetic pin (70, 72) that removably engages at least one of the cutting bit (22) and the driven member (66).

Abstract translation: 一种切削刀头组件（30），其包括从动构件（66）和通过保持器（70,72）可拆卸地连接到从动构件的切削刀头。 保持器包括可拆卸地接合切割钻头（22）和从动构件（66）中的至少一个的磁性销（70,72）。

公开(公告)号：EP1021639B1

公开(公告)日：2001-11-21

申请号：EP97938375.9

申请日：1997-08-18

Applicant: KENNAMETAL INC.

Inventor： WOODS, Gerald, L. ,  BOLLMAN, Percy, D. ,  RITCHEY, Cary, D.

IPC: E21C35/19 ,  E21B10/60

CPC classification number: E21B10/60 ,  E21C35/19 ,  E21C2035/1806 ,  F16B21/12

Abstract: A cutting bit assembly (30) which includes a driven member (66) and a cutting bit (22) detachably connected to the driven member by a retainer (70, 72). The retainer includes a magnetic pin (70, 72) that removably engages at least one of the cutting bit (22) and the driven member (66).

公开(公告)号：EP1021639A1

公开(公告)日：2000-07-26

申请号：EP97938375.9

申请日：1997-08-18

Applicant: KENNAMETAL INC.

Inventor： WOODS, Gerald, L. ,  BOLLMAN, Percy, D. ,  RITCHEY, Cary, D.

IPC: E21C35/19 ,  E21B10/60

CPC classification number: E21B10/60 ,  E21C35/19 ,  E21C2035/1806 ,  F16B21/12

Abstract: A cutting bit assembly (30) which includes a driven member (66) and a cutting bit (22) detachably connected to the driven member by a retainer (70, 72). The retainer includes a magnetic pin (70, 72) that removably engages at least one of the cutting bit (22) and the driven member (66).