US Patent 7717679 Structure of balancing fan

Patent 7717679 was granted and assigned to Asia Vital Components Co., Ltd. on May, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Asia Vital Components Co., Ltd.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7717679

Date of Patent

May 18, 2010

Patent Application Number

11519395

Date Filed

September 13, 2006

Patent Primary Examiner

‌

Igor Kershteyn

Patent abstract

A structure of a balancing fan is disclosed. The fan comprises a hub and a rotation balancing unit. The hub comprises a top portion and a ring portion disposed around the top portion. A plurality of blades extends from the hub. The rotation balancing unit is disposed among the outer side of the top portion and the inner side of the ring portion and comprises a guiding portion and at least one movable weight member. The movable weight member is positioned on the inner side of the guiding portion such that the movable weight member can move along the guiding portion when the hub rotates to provide the dynamic-balance effect and thereby stabilize the rotation of the fan.