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

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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