Vertical lift craft

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Reexamination Certificate

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Details

C446S036000

Reexamination Certificate

active

11229008

ABSTRACT:
A vertical lift craft includes a vertical lift craft, a powered rotor system including two counter-rotating lift rotors rotatably mounted to the body and a cage fixed to the body and extending about the powered rotor system, the cage including flexible rods extending in an open mesh pattern and mutually attached at a plurality of intersections between the flexible rods and netting extending between the flexible rods to cover the cage. The mesh pattern includes latitudinally and longitudinally extending flexible rods and the cage further includes elastomeric bumpers at the plurality of intersections between flexible rods. A base has axles fixed relative to the body and wheels on the axles.

REFERENCES:
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patent: 2935275 (1960-05-01), Grayson
patent: 2938298 (1960-05-01), Apostolescu
patent: 3138350 (1964-06-01), Lovett, Jr.
patent: 3204891 (1965-09-01), Cline
patent: 3262638 (1966-07-01), Militello
patent: 3395876 (1968-08-01), Green
patent: 3450374 (1969-06-01), Moore
patent: 4114837 (1978-09-01), Pavlecka et al.
patent: 5071383 (1991-12-01), Kinoshita
patent: 5645248 (1997-07-01), Campbell
patent: 5672086 (1997-09-01), Dixon
patent: 2005/0051667 (2005-03-01), Arlton et al.

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