Off-axis annular precision initiation charge
US10267603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D1/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
One embodiment provides an apparatus. The apparatus includes a substrate body that includes a top end, an opposing bottom end and a curved outer surface positioned there between, and a clear sight bore aperture centered at a longitudinal axis of the substrate body. The apparatus further includes a trunk line aperture defined in the outer surface of the substrate body. The trunk line aperture has a first end positioned at a top end of the substrate body, off-center from the longitudinal axis. The first end of the trunk line aperture is configured to couple to a detonator. The apparatus further includes a plurality of helical track apertures defined in the outer surface of the substrate body. A respective first end of each helical track aperture is coupled to the trunk line aperture. The apparatus further includes a plurality of termination apertures defined in the outer surface of the substrate body adjacent the bottom end of the substrate body. One termination aperture is coupled to the trunk line aperture at a second end of the trunk line aperture. The second end is opposing the first end and each remaining termination aperture is coupled to a respective helical track aperture. Th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.