Composite tube for gun barrel
US6457274B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 18, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12569
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite tube for a gun barrel consists of: an inner tubular metal liner defining a longitudinal bore axis; a resin matrix material surrounding the liner, the resin matrix material containing a plurality of elongate carbon fibers, the carbon fibers being aligned parallel with the longitudinal bore axis of the liner and under compression along the longitudinal bore axis; a muzzle piece attached to the muzzle end of the barrel; and a breech piece attached to the breech end of the barrel, so that any vibrations transmitted along the longitudinal bore axis of the liner are absorbed by the resin matrix material and so that any vibrations reaching the muzzle piece and breech piece are reflected back into the resin matrix material and thus absorbed. A method of manufacturing the composite tube for a gun barrel consists of the steps of: a) grinding the metal liner down from its original thickness to a greatly reduced thickness; b) applying the resin matrix material in layers about the metal liner by wrapping a carbon fiber mat with embedded resin about the metal liner under extreme pressure, until a suitable thickness of resin matrix material has been applied to the metal liner; c) comp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.