Patent ID: 8951103
Filing Date: 2015-02-10
Classification: F24F,Y10T

Abstract:
1. A boot loadable air damper device for controlling the flow of air through ductwork, the damper device comprising: an actuator having a retractable member; a pivoting member, wherein said pivoting member is operatively connected to said retractable member of said actuator; at least one support base supporting said actuator and said pivoting member with respect to each other; a foldable damper blade attached to said pivoting member, wherein said foldable damper blade has at least three spaced apart portions foldably attached to one another, including a first portion, a middle portion and a second portion, where said foldable damper blade is configured to fold along each of two substantially parallel linear paths through the damper blade, a first of the two paths disposed between the first portion and the middle portion and a second of the two paths disposed between the middle portion and the second portion; and at least one tensioned hinge member operatively connected to said foldable damper blade and configured to cause said foldable damper blade to be under tension when said damper blade is held in a folded state, and to cause said damper blade to unfold in response to the tension when said damper blade is released from the folded state, wherein said air damper device is configured to be installed through a register boot into an unmodified ductwork.