Patent US-1894-530219
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Wings will catch the air on the downstroke but let it pass through when moving back up, due to design with flexible cords; operated by human on platform underneath
- Inventor location: Brooklyn, Kings county, NY (FIPSloc=36047, imputed by HistPat)
- 1/6 assigned to Charles Friedrich Zenker of New York, NY.
Patent family descending from Patent US-1894-530219
- Patent US-1894-530219 (English title: Apparatus for aerial navigation, National tech categories: USPC 244/64)
Sources
- Patent 530219 document and bibliographic info on espacenet
- Patent 530219 at google patents
- Short's DB
- PTO 244
Year filed | 1894 |
---|---|
Year granted | 1894 |
Office | US |
Patent number | 530219 |
Inventors | Nicholas H. Borgfeldt |
Inventor country | US |
Applicant person | Nicholas H. Borgfeldt |
Applicant firm | |
Applicant type | |
Applicant is inventor? | 1 |
Original title | Apparatus for aerial navigation |
English title | Apparatus for aerial navigation |
Tech fields | LTA, flapping, valve, human-powered, feathering |
Filing date | 1894-01-27 |
Full specification filed date | |
Application number | |
Grant date | 1894-12-04 |
Granted? | 1 |
Publication date | |
Supplementary to patent | |
Related to aircraft? | Yes |
Serial number | 498168 |
Patent agent | |
Assigned to | Charles Friedrich Zenker |
National tech categories | USPC 244/64 |
IPCs | IPC B64C31/04 |
CPCs | CPC B64C31/04 |
Family year | 1894 |
First filing? | 1 |
Cites these patents | |
Citations from after 1930 | |
Application ID | 46467460 |
INPADOC family ID | |
Number of text pages | |
Number of diagram pages | |
Number of figures | |
Number of claims |