Ring airfoil and launcher
US6079398A · kind A · utility
30Cited by
47References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41B7/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A toy includes a ring airfoil and a launcher to launch the ring airfoil. The ring air foil is formed with a rigid body portion and an energy absorbing material disposed on a leading edge. The launcher is adapted to substantially simultaneously impart rotational launching energy and translational launching energy to the ring airfoil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.