Patent BE-1908-Bot-Lallemand
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Based on French and British filings in the same family, this patent is for a hybrid aircraft comprising a large curved metal plane, with a fabric envelope containing hydrogen gas on its upper site. A chimney or tube runs vertically through the middle and a ballonet is used to stabilize gas pressure within the envelope.
The inventors were located in Lille and Lunéville—not all that close together, but in northeastern France, with Lille, especially, close to Belgium.
Patents which are supplementary to this one
- Patent FR-1909-403412 (English title: Aerial navigation apparatus, Filing date: 1909-05-27)
- Patent GB-1909-14645 (English title: Apparatus for Aerial Navigation, Filing date: 1909-06-22)
- Patent DE-1911-Bot-Lallemand (English title: Aerial navigation apparatus)
| Year filed | 1908 |
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| Office | BE |
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| Inventors | Léon Bot, Eugène Lallemand |
| Inventor country | FR |
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| English title | Aerial navigation apparatus |
| Tech fields | hybrid, airplane, LTA, parachute, metal, gas, hydrogen, ballonet, car, nacelle, suspension, propeller, airfoil, camber, aerodynamics |
| Filing date | 1908-06-23 |
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| Related to aircraft? | 1 |
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