Patent FR-1917-436934.21631
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A supplementary patent to Patent FR-1911-436934, which described the setup, and especially the "diffusers", at Gustave Eiffel's wind tunnels.
The supplement describes a similar laboratory of larger size (which may correspond to the second facility constructed by Eiffel after the first patent was filed).
Source
| Year filed | 1917 |
|---|---|
| Year granted | 1920 |
| Office | FR |
| Patent number | 21631 |
| Inventors | Alexandre-Gustave Eiffel |
| Inventor country | FR |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Disposition d'un laboratoire d'essais pour modèles d'aéroplanes ou hélices |
| English title | Laboratory for trials of model airplanes and propellers |
| Tech fields | aerodynamics, airplane, propeller, wind tunnel |
| Filing date | November 29, 1917 |
| Full specification filed date | |
| Application number | |
| Grant date | August 31, 1920 |
| Granted? | Yes |
| Publication date | January 10, 1921 |
| Supplementary to patent | Patent FR-1911-436934 |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Émile Bert |
| Assigned to | |
| National tech categories | FR 12.3 |
| IPCs | IPC G01M9/00 |
| CPCs | CPC G01M9/00 |
| Family year | |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims |
