Wireline pull disconnect
US5363921A · kind A · utility
12Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Apr 30, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wireline pull disconnect is enclosed which operates using a system of trapped collets. The collets are releasable by a pulling force which is resisted by one or more Belleville washers. Upon the exertion of a predetermined force which will flatten the Belleville washers, sufficient movement of the components of the pull disconnect occurs so that the collets become liberated and disconnection is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.