| 摘要 |
<p>A control damper comprising a frame adapted for placement in a duct; a blade having a planar face and centrally disposed hinge capable of mating with mounting brackets attached to the frame, so that the blade is free to rotate within the frame; a spring extending between the frame and the face of the blade; and a series combination cable and fusible link assembly extending between the frame and the opposite side of the same face of the blade to which the spring is attached.</p> |
