Patent GB-1912-12466
Jump to navigation
Jump to search
This is a propeller with a concave attacking edge and a convex discharge edge, with its thickest portion contiguous to the attacking edge. The pitch fraction decreases from the center to the periphery. The active face is plane whilst the rear face is convex.
Reference is made on this original document to the French priority date 1912-01-26.
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
- Inventor location: 47, rue d'Hauteviller, Paris
| Year filed | 1912 |
|---|---|
| Year granted | 1913 |
| Office | GB |
| Patent number | 12466 |
| Inventors | Pierre Levasseur |
| Inventor country | FR |
| Applicant person | Pierre Levasseur |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements in Propellers |
| English title | Improvements in the specific aerodynamics and design of propellers |
| Tech fields | Propellers, Aerodynamics, Design |
| Filing date | 1912-05-25 |
| Full specification filed date | 1912-05-25 |
| Application number | 191212466D |
| Grant date | 1913-01-30 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent FR-1912-439413 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Mewburn, Ellis & Pryor |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64C11/18 |
| CPCs | CPC B64C11/18 |
| Family year | 1912 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 23634267 |
| INPADOC family ID | 11122459 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 4 |
