Explosive charge safe-arming system
US4561356A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1983 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Aug 29, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/1185
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A perforating gun having a plurality of shaped charges to be detonated by a primacord positioned adjacent thereto, which primacord is to be actuated by a detonator positioned in detonating proximity to the primacord. The gun of the present invention mounts the primacord and/or detonator within the gun in a manner affording the relative movement therebetween to a position where the primacord and the detonator are non-aligned so as to safe-arm the gun. The relative movement between the primacord and the detonator can be accomplished through the gun carrier so as to simplify the detonation system and minimize any lengthening of the gun required to accomplish the safe-arming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.