Patent US-1917-1271896
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This is an odd case. It is quite likely LTA, though it emphasizes blades situated within its main cylinder, a specifically open-ended tube. There is repeated emphasis on these characteristics. That traditional LTA principles were likely employed in the aircraft's outer layers seems to have been assumed.
- Inventor location: Henderson, Colorado
Sources
- Patent 1271896 document and bibliographic info on espacenet
- Patent 1271896 at google patents
| Year filed | 1917 |
|---|---|
| Year granted | 1918 |
| Office | US |
| Patent number | 1271896 |
| Inventors | Robert A. Higgins |
| Inventor country | US |
| Applicant person | Robert A. Higgins |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Aircraft |
| English title | Aircraft, with an emphasis on cylindrical design |
| Tech fields | design, propellers |
| Filing date | 1917/11/26 |
| Full specification filed date | |
| Application number | 20394017 |
| Grant date | 1918/07/09 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 203940 |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C11/001 |
| Family year | 1917 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47943438 |
| INPADOC family ID | 44320725 |
| Number of text pages | 2 |
| Number of diagram pages | 2 |
| Number of figures | 4 |
| Number of claims | 12 |
