| 摘要 |
<p>PCT No. PCT/NO87/00054 Sec. 371 Date May 6, 1988 Sec. 102(e) Date May 6, 1988 PCT Filed Jul. 8, 1987 PCT Pub. No. WO88/00313 PCT Pub. Date Jan. 14, 1988.Device with valve function which can be brought into and out of a pipeline and parked in the same. The device comprises a channel for throughflowing fluid, a valve (2) which is medium controlled and/or remote-controlled, a parking brake/packer seal unit (9) which with limited force can be brought to bear against the wall of the pipeline, a cylindrical wire anchor (1) with an external diameter which is slightly lesser than the internal diameter of the pipeline and can be brought into pressure contact with the pipeline.</p> |
| 申请人 |
DEN NORSKE STATS OLJESELSKAP A/S, STAVANGER, NO |
发明人 |
JOHANSEN, V., TROND, N-7000 TRONDHEIM, NO;RUCH, OLA, N-7079 FLATASEN, NO;NAESS, LUDVIG, N-7075 TILLER, NO;KRISTJANSSON, P., K., N-7081 SKJETNEHAUGEN, NO;UTENGEN, F., S., N-7079 FLATASEN, NO |
