Pneumatic float for light and ultralight aircraft
US6499420B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C25/56
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The pneumatic float according to the invention comprises an airtight outer skin (5), which can be inflated with compressed air via a valve (21). Webs (6) extend essentially over the entire length of the float, which are joined to the outer skin (5) along the lines (1) and on the one hand divide the inside of the float into intercommunicating chambers (7), and on the other hand give the float the desired contours (14), stability and stability against bending. The webs can comprise single or multiple layers of low-stretch woven material or plastics material foils. To improve directional stability in operation and as a protection against damage to the outer skin (5) the float has a keel rail (8), for instance comprising plastics material, and glued on. To avoid the Coanda effect two side rails (9) are attached in a similar manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.