Patent US-1910-957744

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"Biplane" (two parallel planes); fabric stretched over frame; “preferably the two planes are correspondingly concavo-convexly curved or dished” – but, with their concave surfaces facing each other (in other words, the top plane is convex up, while the other is convex down) – this arrangement is said to counterbalance air currents and maintain stability of the craft; planes are extended by flaps, whose ends can flutter or vibrate so that air may pass through more easily (resembling bird wings); if the vessel suddenly halts, the “parachutic effect” of the top aeroplane will slow descent

Inventor location (imputed by HistPat): Washington, DC, (FIPSloc=11001)

49/100ths assigned to three individuals listed.

Patents which are supplementary to this one

Sources


Year filed 1909
Year granted 1910
Office US
Patent number 957744
Inventors William Whitney Christmas
Inventor country US
Applicant person
Applicant firm
Applicant type
Applicant is inventor? Yes
Original title Flying-machine
English title Flying-machine
Tech fields airplane, biplane, texture, stability, frame, rudder, safety
Filing date October 30, 1909
Full specification filed date
Application number
Grant date
Granted? Yes
Publication date May 10, 1910
Supplementary to patent
Related to aircraft? Yes
Serial number 525487
Patent agent 1
Assigned to Creed M. Fulton, Thomas W. Buckey, Lester C. McLeod
National tech categories USPC 244/45R
IPCs IPC B64C 39/00
CPCs CPC B64C2700/6295, CPC B64C 39/08
Family year 1909
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 47298507
INPADOC family ID
Number of text pages 7
Number of diagram pages 4
Number of figures 12
Number of claims 36