Crystal gel airfoils with improved tear resistance and gel airfoils with profiles capable of exhibiting time delay recovery from deformation
US6050871A · kind A · utility
88Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1997 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Aug 12, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A novel aerodynamic toy comprising a camber defined by one or more inner or outer parameter gel profile(s) in the shape of an airfoil made from an elastic, tear resistant, crystal gel with or without one or more outer parameter gel profile(s) having a connective thin gel membrane, said gel membrane having one or more preselected holes therethrough. The airfoils of the invention exhibits excellent flight stability and no turnover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.