Abstract: A ventilated cage and rack system for assembly by a user using simple tools and a method for assembly is provided. A plurality of frames and vertical plenums can be connected to a base, and a retaining assembly can be used to connect a plurality of vertical beams and horizontal support beams. A plurality of canopies is preferably used to connect the plenums and the support beams to shroud cages beneath the canopies. The canopies preferably include removable side walls to adapt to the width of the cage being shrouded. A plenum clean out system preferably provides a relatively simple method of draining a cleaning fluid from a plenum by moving a lever between an open and closed position. A pressure based plenum system is also provided wherein a constant air pressure is maintained in the ventilated rack system and air is provided into a cage at a constant air pressure.

Abstract: A ventilated cage and rack system for assembly by a user using simple tools and a method for assembly is provided. A plurality of frames and vertical plenums can be connected to a base, and a retaining assembly can be used to connect a plurality of vertical beams and horizontal support beams. A plurality of canopies is preferably used to connect the plenums and the support beams to shroud cages beneath the canopies. The canopies preferably include removable side walls to adapt to the width of the cage being shrouded. A plenum clean out system preferably provides a relatively simple method of draining a cleaning fluid from a plenum by moving a lever between an open and closed position. A pressure based plenum system is also provided wherein a constant air pressure is maintained in the ventilated rack system and air is provided into a cage at a constant air pressure.

Abstract: A sound reducing system comprises a housing, acoustic baffle, and acoustic netting. The acoustic baffle is covered with a waterproof protective casing which protects the acoustic baffle from dirt and moisture without interfering with its acoustic properties, and allows it to be cleaned with fluids. The housing comprises an inner pan and an outer pan which are pivotally coupled. The acoustic baffle and the acoustic netting are disposed within the housing, but can be removed for cleaning when the housing is opened. When the acoustic baffle and acoustic netting members are placed back within the housing, they are protected from damage.

Abstract: An animal cage rack includes a forced air system for removing air from the periphery of the animal cages. The rack includes "U" shape guides for positioning and aligning each cage with respect to a positive ventilating probe and an automatic watering device. Each cage includes a top bonnet section, a bottom section which supports the bonnet around the periphery thereof, a flat rim wire bar lid, and a filter in the bonnet. An L-shaped spacer separates the bonnet from the bottom section so that air exhaust ports in the Unshaped guide can remove exhausted air from the periphery of the cage. Positive air supplied by an air inlet manifold is introduced through an aperture in the bonnet and the L-shaped bracket, to the top of each cage. A downwardly facing port in the air tube forces air toward the bottom of the cage which after it circulates is removed through the periphery by the exhaust ports in the Unshaped cage guides.

Abstract: An animal cage rack includes a forced air system for removing air from the periphery of the animal cages. The rack includes "U" shape guides for positioning and aligning each cage with respect to a positive ventilating probe and an automatic watering device. Each cage includes a top bonnet section, a bottom section which supports the bonnet around the periphery thereof, a flat rim wire bar lid, and a filter in the bonnet. An L-shaped spacer separates the bonnet from the bottom section so that air exhaust ports in the U-shaped guide can remove exhausted air from the periphery of the cage. Positive air supplied by an air inlet manifold is introduced through an aperture in the bonnet and the L-shaped bracket, to the top of each cage. A downwardly facing port in the air tube forces air toward the bottom of the cage which after it circulates is removed through the periphery by the exhaust ports in the U-shaped cage guides.