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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/122 ; 244/60 ; 244/23C ; 244/1711|
|발명자 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 0|
A vertical lift aircraft comprising an aircraft body and a lifting assembly is presented. The lifting assembly comprises a frame wherein at least one airfoil assembly which includes a plurality of airfoils attached to a drive ring is secured. As the drive ring rotates, the airfoils move through the air and create lift. The pitch of the airfoils or blades can be fixed or variable. The drive ring is rotated by a band which is in frictional contact with the inner surface of the drive ring. The band is rotated by at least one pair of rollers which are in fri...
A vertical lift aircraft comprising: a body; lifting means having frame means attached to said body, said lifting means including; (a) first drive ring means for being rotated in a first direction, said first drive ring means being supported by said frame means; (b) a first plurality of airfoil means each attached at one end to said first drive ring means for rotation in unison therewith; (c) first band means disposed within said first drive ring means, a substantial portion of one surface of said first band means being in frictional contact with a subst...