发明名称 |
ASSEMBLY FOR USE IN A BELTTONG |
摘要 |
An assembly for use in a tong (2) having a housing (3) and a rotary element (16) rotatably mounted in said housing (3), comprises: (a) a belt anchor assembly (21), (b) a belt carrier assembly (31) which can be mounted on said rotary element (16), (c) a belt (32) extending between the belt anchor assembly (21) and the belt carrier assembly (31), and (d) at least one jaw (30) for facilitating gripping a pipe (8). |
申请公布号 |
WO9006417(A1) |
申请公布日期 |
1990.06.14 |
申请号 |
WO1989EP01436 |
申请日期 |
1989.11.27 |
申请人 |
WEATHERFORD U.S., INC.;LUCAS, BRIAN, RONALD |
发明人 |
SCHULZE-BECKINGHAUSEN, JOERG, ERICH |
分类号 |
E21B19/16 |
主分类号 |
E21B19/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|