| 发明名称 | Gas flow system for a long-barrel firearm | ||
| 摘要 | A gas cycling firearm comprising a barrel having a breech end, a muzzle end, an inner surface defining a bore having a bore axis, and an outer surface, wherein the muzzle end is spaced a length L from the breech end, the barrel further having a port providing a fluid path between the bore and the outer surface, the port having an axis that intersects the bore axis at a position P from the muzzle end, where P is less than or equal to ⅓ L; and a gas flowpath extending between the gas port and the piston system, the gas flowpath having a length G and a volume V, wherein G is greater than ⅓ L. | ||
| 申请公布号 | US9476659(B2) | 申请公布日期 | 2016.10.25 |
| 申请号 | US201314077626 | 申请日期 | 2013.11.12 |
| 申请人 | F & D Defense LLC | 发明人 | Hall Corby |
| 分类号 | F41A5/18;F41A5/26 | 主分类号 | F41A5/18 |
| 代理机构 | Hall Estill Attorneys at Law | 代理人 | Hall Estill Attorneys at Law ;Mantooth Tyler J. |
| 主权项 | 1. A gas cycling firearm comprising: a barrel having a breech end, a muzzle end, an inner surface defining a bore having a bore axis, and an outer surface, wherein the muzzle end is spaced a length L from the breech end, the barrel further having a port providing a fluid path between the bore and the outer surface, the port having an axis that intersects the bore axis at a position P from the muzzle end, where P is less than or equal to ⅓ L; and a gas flow path extending between the gas port and a piston system the gas flow path having a greater volume than the volume of the bore. | ||
| 地址 | Seminole OK US | ||