Patent DE-1910-221509
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Vent for a balloon with rubber ring and one or more springs.
Patents which are supplementary to this one
- Patent FR-1910-405717 (English title: Elastic valve for balloon, Filing date: 1909-07-31)
Sources
- Jahrbuch über die Fortschritte auf allen Gebieten der Luftschiffahrt vol. 1 (1911), p. 356
- Original patent document and Bibliographic info at DPMA
- Original patent document and bibliography entry at espacenet
| Year filed | 1909 |
|---|---|
| Year granted | 1910 |
| Office | DE |
| Patent number | 221509 |
| Inventors | |
| Inventor country | DE, AT |
| Applicant person | |
| Applicant firm | Vereinigte Gummiwaaren-Fabriken Harburg-Wien |
| Applicant type | COMPANY |
| Applicant is inventor? | |
| Original title | Federndes Ballonventil |
| English title | Balloon vent with springs |
| Tech fields | LTA, balloon, vent, valve, springs |
| Filing date | 1909-06-08 |
| Full specification filed date | |
| Application number | |
| Grant date | |
| Granted? | 1 |
| Publication date | 1910-05-02 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 77h.4 |
| IPCs | |
| CPCs | CPC B64B1/64 |
| Family year | |
| 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 | 2 |
| Number of claims | 2 |
