The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2012
Filed:
Jul. 02, 2007
Takakazu Uebori, Fuchu, JP;
Kimio Nakamura, Kawasaki, JP;
Takakazu Uebori, Fuchu, JP;
Kimio Nakamura, Kawasaki, JP;
Hirobo Co., Ltd, Hiroshima, JP;
Abstract
A remote controlled helicopter of a single rotor type to be used indoors, having a flying operation that can be stabilized and operability that can be improved. The helicopter includes a center hub that supports a rotor head to a mainmast, and is divided into an upper center hub and a lower center hub. The upper and the lower center hubs are fixed around the shaft of the mainmast with a predetermined angle. A phase angle of a main rotor as an output with respect to an operation input from a swash plate becomes an acute angle, and the main rotor and a stabilizer are mounted to rotate with a phase difference of the acute angle.