|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||12/4016 ; 12/408.1 ; 44/603.4 ; 44/604.8 ; 47/358.9|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 27 인용 특허 : 41|
A toy includes a ring airfoil and a launcher to launch the ring airfoil. The ring air foil is formed with a rigid body portion and an energy absorbing material disposed on a leading edge. The launcher is adapted to substantially simultaneously impart rotational launching energy and translational launching energy to the ring airfoil.
[ We claim:] [1.] A ring airfoil for launching from a launcher, the ring airfoil comprising:an annular body comprising a first portion and a second portion, the first portion comprising a thermoplastic elastomer having a first hardness, and the second portion comprising a thermoplastic elastomer have a second hardness greater than the first hardness;the first portion forming a leading edge of the ring airfoil and the second portion forming a trailing edge of the ring airfoil; andthe annular body having a thickness tapering from a maximum thickness adjace...