Cable head
US6032733A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1997 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Aug 22, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The wireline release includes a shaft having one end releasably connected to the end of the wireline by a connector and being held in the latched position by a fusible material ring. Upon activating heaters in the cable head from the surface via conductors in the wireline, the fusible material ring is melted allowing the shaft, under the tension of the wireline, to shift to an unlatched position whereby the connector releases the wireline from the shaft and cable head. The connector includes a plurality of collet members which, in the latched position, are biased into the connection with the end of the wireline and are then released upon being shifted to the unlatched position where the collet members move to a disengaged position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.