A housing member for an actuator assembly for adjusting the orientation of a mirror element in a mirror assembly provides integral weather seals and noise dampeners. The weather seals and noise dampeners are injection molded with or onto a base wall of the housing member to thereby form seals and dampeners...http://www.google.com.hk/patents/US6037689?utm_source=gb-gplus-share專利 US6037689 - Housing with integral weather seals and noise dampeners for a rearview mirror actuator assembly