Patent US-1909-932712
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Two propellers (parallel, stacked vertically) rotating in opposite directions (can be multiplied for larger vessels); each propeller composed of several interlocking inclined blades; optionally, tack an LTA gasbag on top of the whole thing.
- Inventor locations: Enoch's in Littlestown, Adams county, PA (FIPSloc=42001); William's in Smyrna, Kent county, DE (FIPSloc=10001, imputed by HistPat)
- From another patent we can infer that William D is William David Le Fevre
Sources
- Patent 932712 document and bibliographic info on espacenet
- Patent 932712 at google patents
| Year filed | 1908 |
|---|---|
| Year granted | 1909 |
| Office | US |
| Patent number | 932712 |
| Inventors | Enoch S Le Fevre, William David Le Fevre |
| Inventor country | US |
| Applicant person | Enoch S Le Fevre, William David Le Fevre |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Air-Ship |
| English title | Airship |
| Tech fields | helicopter, stability, LTA |
| Filing date | February 20, 1908 |
| Full specification filed date | |
| Application number | 1908416847 |
| Grant date | August 31, 1909 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | 416847 |
| Patent agent | |
| Assigned to | |
| National tech categories | USPC 244/26, USPC 244/68, USPC 416/196A, USPC 416/196R |
| IPCs | IPC B64B1/00 |
| CPCs | CPC B64B1/00 |
| Family year | 1908 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | 3 |
| Number of figures | 6 |
| Number of claims | 3 |
