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:
Sep. 06, 2011
Filed:
Oct. 23, 2008
Ryosuke Ito, Tokyo, JP;
Kiyoshi Sato, Tokyo, JP;
Hideaki Tamura, Tokyo, JP;
Katsushi Kawakami, Ichikawa, JP;
Ryosuke Ito, Tokyo, JP;
Kiyoshi Sato, Tokyo, JP;
Hideaki Tamura, Tokyo, JP;
Katsushi Kawakami, Ichikawa, JP;
Zephyr Corporation, Tokyo, JP;
Abstract
When a wind velocity sensor detects a wind velocity higher than a predetermined level, a timer device starts a waiting timer function during an operation timer period shorter than the waiting timer period. After the waiting timer period is over, the waiting timer function is switched to an operation timer function, and a switching relay switches a generator to a motor only during an operation timer period. Then, a driving circuit performs a start assisting rotation. After the operation timer period is over, the waiting timer period re-starts. This process is repeated. When during this period, the number of rotations of a rotor monitored by a rotation number measuring device, based on the output voltage Vof a three-phase conduction coil exceeds a predetermined number of rotations, the charging of a battery by a three-phase generator is started.