Patent CH-1912-59557
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| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | CH |
| Patent number | 59557 |
| Inventors | Karl Pollacsek |
| Inventor country | HU |
| Applicant person | Karl Pollacsek |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Schraubenanordnung für Luftschraubenpaare |
| English title | Superimposed propellers rotating in opposite directions, avoiding uneven strain, suitable (directly) for lift as well as propulsion |
| Tech fields | propellers, lift, propulsion, helicopter, ascension, hybrid |
| Filing date | |
| Full specification filed date | |
| Application number | |
| Grant date | 1912-07-20 |
| Granted? | |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | A. Ritter |
| Assigned to | |
| National tech categories | CH 129b |
| IPCs | |
| CPCs | |
| Family year | 1912 |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 3 |
| Number of claims | 2 |
Sources
- Bibliographic data via Espacenet
- Original via Espacenet
- Inventor location: Budapest, Hungary
Patent family descending from Patent CH-1912-59557
- Patent CH-1912-59557 (English title: Superimposed propellers rotating in opposite directions, avoiding uneven strain, suitable (directly) for lift as well as propulsion, National tech categories: CH 129b)
- Patent GB-1913-16621 (English title: Superimposed propellers rotating in opposite directions, avoiding uneven strain, suitable (directly) for lift as well as propulsion, Supplementary to patent: Patent CH-1912-59557)
