A miniature heat dissipating fan includes a housing and an impeller. A circuit board and a stator bobbin, a balance plate, and an axle support. The axle support has an axle or a bearing member mounted thereto. The impeller has a bearing member or an axle and arranged in a manner that the axle and the...http://www.google.de/patents/US6290471?utm_source=gb-gplus-sharePatent US6290471 - Pivotal structure for an impeller of a miniature heat dissipating fan
