Acrobatic rotary-wing toy helicopter
US7798883B2 · kind B2 · utility
4Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2008 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Nov 28, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H27/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A rotary-wing toy helicopter generally comprising a transverse shaft, a plane body fixedly attached to the transverse shaft and a rotor assembly rotatably attached to the transverse shaft. The rotor assembly generally comprises a primary drive connected to a drive shaft for driving at least one set of lifting blades and a secondary drive connected to the transverse shaft for driving rotation of the transverse shaft and the plane body clockwise or counter-clockwise around the axis of transverse shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.