Apparatus for severing tubular members
US5031540A · kind A · utility
Inventor
Key dates
| Filing date | Aug 28, 1990 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Aug 28, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0052
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to an apparatus for severing tubular members and is provided with a carrier, which carries a sparging assembly and an explosive assembly downwardly into the tubular member to be severed. The outlet of the sparging assembly is below the lower end of the carrier and is at a level adjacent to the level of the explosive charge carried by the explosive assembly. The sparging assembly dislodges and agitates the debris accumulated within the tubular member and evacuates it from the level, wherein it is deployed, simultaneously allowing progression of the explosive assembly downward along the interior of the tubular member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.