Abstract: In an air terminal having an inflatable bellows expanding toward a pair of spaced cut-off plates, a sealing element is attached to the central portion of that side of the bellows adjacent to the cut-off plates. The transversely extending ends of the sealing element are not secured to the bellows but are free to separate therefrom as the bellows is expanded to thereby more easily engage the cut-off plates. A pair of foam strips are provided near the transverse ends of the sealing element so as to thereby provide a substantially normally extending surface against which the flowing air will impinge so as to thereby reduce the sound emanating therefrom. A pair of vibration damper clips extend from the cut-off plates and engage the foam strips to prevent any vibration thereof. Pads are secured to the edges of the cut-off plates so as to engage the seal element then thereby enhancing the sealing relationship between the cut-off plates and the seal element.

Abstract: A bellows assembly is provided in which a retainer member is formed as an aluminum extrusion with two uniformly spaced recesses formed therein. A bellows is provided with two uniformly spaced attachment members which coact with the spaced recesses to provide a uniforma bellows profile for its entire length. Accordion pleat members are provided to attach the ends of the bellows to the ends of the retainer member.

Abstract: A bellows assembly is secured to a retainer by extrusions having a mushroom or arrow shaped cross section. Air flowing through the terminal impinges upon an impervious film covering the central portion of the device and is diverted into two flow paths. Initially the flow paths extend between the film and the cutoff plates which coact to form a tight shut off. Downstream of the cutoff plates, the flow paths are between a porous foam covering the bellows and foam surrounding the cutoff plates to provide a sound reducing effect. If necessary or desirable, the back of the retainer may be covered with foam or other suitable sound insulating material.

Abstract: A diffuser is provided with three discharges. Two of the discharges are directed in one direction and, when installed, would be directed towards the outside wall of the conditioned space. The other discharge is directed in the opposite direction and would discharge into the interior of the conditioned space. Responsive to the temperature of the conditioned air being supplied, a thermally responsive actuator is in either one of two positions whereby either one of the two discharges in the one direction or the discharge in the opposite direction is blocked. This results in two discharges in one direction or one in each direction with the discharge area being the same in both instances.

Abstract: An air conditioning system having conditioned air supplied through at least one duct includes a damper blade assembly for varying the volume of conditioned air flow through said duct. A first inflatable bellows is connected to the damper blade assembly to vary the position thereof in said duct. The bellows is inflated in response to changes in the supply pressure of the conditioned air to maintain a substantially constant volume conditioned air flow downstream of said damper blade assembly. A second inflatable bellows is connected to the damper blade assembly for further varying the position thereof in the duct. The second inflatable bellows is inflated in response to the temperature of the air in the enclosure whereby the quantity of air discharged thereinto is reduced as the temperature of the enclosure approaches a predetermined level.

Abstract: A regulator for a damper assembly operable to control the flow of conditioned air through a supply duct. The regulator includes a pressure responsive member connected to the damper assembly to vary the position thereof within the supply duct in accordance with changes in the conditioned air supply pressure to maintain a substantially constant volume air flow downstream of the damper assembly irrespective of such changes. The regulator further includes control point setting means for obtaining the level of constant volume air flow including force generating elements acting in opposition to the pressure responsive member for providing a first force at a maximum level of constant volume air flow and for further providing a second force at lesser levels of constant volume air flow.

Abstract: An air distribution unit for discharging conditioned air into an area to be conditioned and having a plenum chamber for receiving conditioned air and an outlet in communication with the plenum chamber and with the area being conditioned. A damper is employed to regulate the flow of conditioned air from the plenum chamber to the outlet with the damper being responsive to a thermostat to regulate the quantity of air discharged into the area in accordance with the temperature requirements thereof. The distribution unit includes an override control to maintain the flow of air through the damper at a constant predetermined rate irrespective of the temperature requirements in the area, the override control becoming operable when the damper has initially discontinued flow of conditioned air into the area in response to sensed temperature.

Abstract: An assembly for use in a terminal in an air conditioning system, the assembly including first and second spaced apart members. A third member is interposed between the first and second members. The first and third members define therebetween a first air passage. The second and third members define therebetween a second air passage. The first, second and third members are joined together to form an integral assembly.

Abstract: An air conditioning terminal for supplying conditioned air into a space includes a pair of assemblies for regulating the quantity of air discharged from the terminal. A restraining member is connected to the air regulating assemblies and to a non-movable portion of the terminal to prevent relative movement between the air regulating assemblies and the non-movable portion.

Abstract: An assembly for releasably connecting a diffuser section of an air conditioning terminal to a pair of opposed spaced walls includes first and second mounting brackets respectively permanently affixed to each of said spaced end walls. Each bracket includes a retainer permanently affixed thereto. Third and fourth mounting brackets are permanently affixed substantially adjacent each end of the diffuser section. Each bracket includes a removable securing member alignable with the retainer to connect the diffuser section to the end walls of the terminal.

Abstract: An air conditioning terminal including first and second damper assemblies, with each assembly having an outer wall spaced from an outer terminal wall to define first and second air passages. The assemblies further include inner walls spaced from a centrally located vertically extending wall to define third and fourth air passages. The terminal further includes a diffuser section including side diffuser members having a portion including a curved surface spaced from sides of the centrally located wall extending generally parallel thereto to define a section to streamline the air flowing from the first and third air passages towards the air from the second and fourth air passages to limit turbulence. The central vertically extending wall includes a baffle to direct the air streams downwardly prior to their intermixing to further minimize turbulence.