Patent US-1911-990015

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Frame with several layers, including flapping elements; arches; valves which open during upward motion then close to maintain altitude and sustain lift; “lifting” propeller located within chamber (also with valves) at top of frame; “driving” propeller for horizontal movement; envisions fast takeoff from narrow launchpad.

  • Inventor location (imputed by HistPat): Alpha, NJ

Sources


Year filed 1910
Year granted 1911
Office US
Patent number 990015
Inventors Josef Skorupa
Inventor country US
Applicant person Josef Skorupa
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Aeroplane
English title Aeroplane
Tech fields airplane, helicopter, flapping, hybrid, takeoff, frame, wheels, navigation, rudder, stability, propeller
Filing date 1910-12-01
Full specification filed date
Application number 1910595161
Grant date 1911-04-18
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number 595161
Patent agent
Assigned to
National tech categories USPC 244/104R
IPCs
CPCs CPC B64C23/005
Family year 1910
First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims