Abstract: An air-handling unit including a housing with a discharge opening, and a fan disposed substantially within the housing. The fan includes a fan discharge that extends through the discharge opening thereby defining a gap between the fan discharge and the housing surrounding the discharge opening. A brush seal is coupled to one of the housing about the discharge opening and the fan discharge such that the brush seal extends across the gap forming a seal between the discharge opening and the fan discharge.

Abstract: An air-handling unit including a housing with a discharge opening, and a fan disposed substantially within the housing. The fan includes a fan discharge that extends through the discharge opening thereby defining a gap between the fan discharge and the housing surrounding the discharge opening. A brush seal is coupled to one of the housing about the discharge opening and the fan discharge such that the brush seal extends across the gap forming a seal between the discharge opening and the fan discharge.

Abstract: A domestic reverse osmosis water purification system utilizing few parts in the controller valve mechanism enhances reliability and economic feasibility. All surfaces of the controller valve mechanism in contact with water are non-metallic and are constructed of FDA approved materials. In addition to its normal function of metering the reject water flow, the controller valve mechanism allows the homeowner to easily rinse the reverse osmosis membrane and conserves water by automatically stopping influent water flow when the product storage tank is full.

Abstract: A fluid strainer and flow corrector for use with a fluid flow measurement device, such as a turbine-type flow meter, consists of a generally conical grid of ribs attached to an annular base flange. The base flange of the strainer/flow corrector fits into a groove formed on the inlet side of the housing of the flow meter and is held in place by means of a flexible snap-ring. The strainer/flow corrector is arranged with its apex upstream of the flange portion with respect to the direction of fluid flow through the inlet of the flow meter. The spacing between the ribs is chosen as to block the flow of debris which might be present in the fluid flowing through the flow meter. The spacing between the ribs is also chosen to provide a desired velocity profile to the fluid. The strainer/flow corrector may be easily removed or replaced without disconnecting the flow meter from its associated pipework.