Explosive tubular cutter and devices usable therewith
US10047583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Feb 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C19/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Explosive cutter assemblies and methods include a liner having a single unitary body, and an explosive charge disposed within the liner. The explosive charge includes a continuous unitary body of explosive material having a first area disposed in association with an inner surface of the liner and a second area extending from the center of the assembly to the first area. A detonator can be used to ignite the second area of explosive material, causing propagation of a detonation to the first area, which in turn causes deformation of the liner and projection of the liner toward a target to form a cut. An adaptor sub having a detonator within can be inserted into the cutter assembly to secure the assembly together, position the detonator in association with the explosive material, and engage a conduit usable to raise and lower the cutter assembly and transmit a detonation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.