Patent US-1869-97100

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The Avitor. Primarily a steam-powered airplane, with added LTA bubbles. Two-bladed propellers. Inventor Frederick Marriott created a prototype which made two tethered test flights in 1869. LTA gas not sufficient to raise the plane; it takes off after the propellers are running.


Sources

Inventor location (imputed by HistPat): San Francisco, San Francisco county, CA (FIPSloc=6075)


Year filed
Year granted 1869
Office US
Patent number 97100
Inventors Frederick MARRIOTT
Inventor country US
Applicant person
Applicant firm
Applicant type
Applicant is inventor? Yes
Original title Improvement in aerial steam cars
English title Aerial steam car
Tech fields airplane, propulsion, propeller, LTA, takeoff
Filing date
Full specification filed date
Application number
Grant date 1869/11/23
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories USPC 244/53R
IPCs
CPCs CPC B64D33/04
Family year
First filing? No
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 3
Number of claims 5