Patent DE-1917-305040
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First in a series of patents dealing with propeller "wings" altering elevation in response to a barometer.
Patents which are supplementary to this one
- Patent DE-1917-323641 (English title: Apparatus for altering the wing pitch of aircraft propellers, Filing date: 1917-04-24)
- Patent DE-1917-333471 (English title: Apparatus for altering wing pitch of aircraft propellers, Filing date: 1917-02-01)
- Patent AT-1918-95440 (English title: Aerial propeller with revolving wings that can be set at an angle, Filing date: 1918-08-03)
Sources
- Original patent document and Bibliographic info at DPMA
- Original patent document and bibliography entry at espacenet
| Year filed | 1917 |
|---|---|
| Year granted | 1919 |
| Office | DE |
| Patent number | 305040 |
| Inventors | Christian Lorenzen |
| Inventor country | De |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Vorrichtung zur Veränderung der Flügelsteigung von Luftfahrzeugpropellern |
| English title | Apparatus for altering the wing pitch of aircraft propellers |
| Tech fields | propeller, barometer |
| Filing date | 1917-01-30 |
| Full specification filed date | |
| Application number | |
| Grant date | |
| Granted? | 1 |
| Publication date | 1919-06-23 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 77h.6 |
| IPCs | IPC B64C11/30 |
| CPCs | CPC B64C11/306 |
| Family year | 1917 |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims |
