Patent US-1910-991811
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Main frame, plus top plane inclined downward and swinging rudder; wheels attached to apparatus with springs in order to reduce shock on landing; frames can be converted to one parachute; two rudders; 'end gate' which can close gap at the back of the frame
- Tech class CPC B64C39/00: Aircraft not otherwise provided for
- Inventor location: St. Louis, St. Louis county, MO (FIPSloc=29510, imputed by HistPat)
- This source indicates that Sewall Witherspoon of St. Louis came from New England and was an electrical engineer: [1]
Sources
- Patent 991811 document and bibliographic info on espacenet
- Patent 991811 at google patents
| Year filed | 1910 |
|---|---|
| Year granted | 1911 |
| Office | US |
| Patent number | 991811 |
| Inventors | Sewall A. Witherspoon |
| Inventor country | US |
| Inventor location | St. Louis |
| Applicant person | Sewall A. Witherspoon |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Flying-machine |
| English title | Flying-machine |
| Tech fields | airplane, frame, wheels, rudder, stability, safety, parachute, landing |
| Filing date | 1910-01-26 |
| Full specification filed date | |
| Application number | |
| Grant date | 1911-05-09 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 540133 |
| Patent agent | |
| Assigned to | |
| National tech categories | USPC 244/144 |
| IPCs | |
| CPCs | CPC B64C39/00 |
| Family year | 1911 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 4 |
| Number of diagram pages | 2 |
| Number of figures | 6 |
| Number of claims | 10 |
