| 发明名称 | Convertible helicopter ring member | ||
| 摘要 | A convertible helicopter ring member includes a ring member and a drive mechanism. The drive mechanism orients the ring member substantially in-plane with a tail rotor of a helicopter during a first mode of helicopter operation and orients the ring member substantially off-plane with the tail rotor of the helicopter during a second mode of helicopter operation that is different from the first mode. | ||
| 申请公布号 | US9067676(B1) | 申请公布日期 | 2015.06.30 |
| 申请号 | US201414308943 | 申请日期 | 2014.06.19 |
| 申请人 | Bell Helicopter Textron Inc. | 发明人 | Hethcock J. Donn;Dreier Mark E.;Smith Dudley;Robinson Robert Lee |
| 分类号 | B64C27/82 | 主分类号 | B64C27/82 |
| 代理机构 | Fish & Richardson P.C. | 代理人 | Fish & Richardson P.C. |
| 主权项 | 1. A helicopter ring member comprising: a ring member comprising an inner circumference, the ring member to be oriented substantially in-plane with a tail rotor of a helicopter during a first mode of helicopter operation, wherein the first mode of helicopter operation is a hover mode, the ring member to be oriented substantially off-plane with the tail rotor of the helicopter during a second mode of helicopter operation that is different from the first mode. | ||
| 地址 | Fort Worth TX US | ||