Patent US-1899-621195

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Multiple separate motors; thin cylindrical balloon; wire system for moving weight to achieve balance. Rigid frame:

This arrangement permits the use of rigid chambers as gas-spaces without bringing the gas into contact with the atmospheric air in the chambers during filling. The filling of the gas bags or envelops takes place without interfering with the cylindrical form of the balloon framework, which is continuously maintained by means of the outer casing d' and is only continued up to such a degree tat the necessary free space is left to permit expansion of the gas when the balloon ascends to great altitudes and when heated.

Inventor location (imputed by HistPat): Stuttgart, Germany

Occupation: "general-lieutenant z.d. general à la suite of His Majesty the King of Würtemburg"


{{USpatentsources|621195 espacenet]

Year filed 1897
Year granted 1899
Office US
Patent number 621195
Inventors Ferdinand Graf Zeppelin
Inventor country DE
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Navigable balloon
English title Navigable balloon
Tech fields LTA, balloon, frame, stability, propulsion, car, cargo, rigid
Filing date December 29, 1897
Full specification filed date
Application number
Grant date March 14, 1899
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Yes
Serial number 664295
Patent agent
Assigned to
National tech categories USPC 244/3, USPC 244/93, USPC 244/97
CPCs CPC B64D3/00
Family year 1899
First filing? No
Number of citations
Cited by
Application ID
Number of text pages 3
Number of diagram pages 4
Number of figures 10
Number of claims 4