Device for firing a diabolo form bullet from a firearm
US5309842A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 23, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B8/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The device for firing a diabolo form bullet from a firearm with a rifled barrel consists of a cartridge having a housing, a detonation cap connected to one end of the housing in a gas-tight manner and containing a gas-forming propellant, the housing having an expansion compartment for expansion of a gas produced on ignition of the gas-forming propellant and an outer surface tapered toward another end of the housing remote from the detonation cap, the tapered outer surface aligning the diabolo form bullet loaded coaxially in the rifled barrel by engaging a tapered recess provided in the diabolo form bullet, whereby the diabolo form bullet is forced into the rifled barrel so as to calibrate the diabolo form bullet; and a membrane covering the other end of the housing remote from the detonation cap. The housing is provided with at least one breakthrough region, which ruptures when a gas pressure on ignition exceeds a predetermined maximum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.