|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||446/036; 446/034; 446/037; 446/058; 446/066; 244/01711|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 135|
A toy helicopter, in accordance with the present disclosure, includes a body having a longitudinal length and a main rotor. There is an element movable along the longitudinal length. The element allows a user to selectively adjust the location of the center of gravity of a toy helicopter by moving the element along the longitudinal length, thereby changing the velocity of the helicopter.
What is claimed is: 1. A remote control toy helicopter comprising:a body and a longitudinal extension from the body;a main motor and a battery for the main motor, the main motor being controllable by a controller remote from the body;a main rotor having two propeller blades mounted on a rotor shaft driven by the main motor;an auxiliary rotor mounted on the rotor shaft of the main rotor for rotation in the sense of the main rotor;a movable fin attached along the longitudinal extension;a weight fixed to the movable fin;wherein selective movement to differe...