Free flying aerodynamic toy with high stability
US4051622A · kind A · utility
Inventor
Key dates
| Filing date | Apr 12, 1976 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Apr 12, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H27/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A free flying aerodynamic toy that is manually launched and is composed of an elongate air foil having two identical surfaces that are joined to one another symmetrically of the longitudinal axis so that in response to rotation and translation through air, the surfaces sequentially cooperate with air flow thereover to produce lift. Circular stabilizer plates at opposite ends of the air foil produce vertical stability and have weighted peripheries to increase rotational inertia. Centrally of the air foil is a rib which divides the air foil into two symmetrical parts. The parts extend outward from the rib at a positive dihedral angle (an included angle less than 180.degree.) so as to enhance stability and reduce roll and yaw of the toy. PAC BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an aerodynamic toy and more particularly to such toy that is capable of free flight so that it can perform maneuvers upon being thrown into the air by the user thereof. 2. Description of the Prior Art U.S. Pat. No. 2,501,442 (244-153) discloses an air foil kite which contains a rotating air foil that rotates with respect to a central shaft which is supported at the end…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.