Abstract: A mixture consisting essentially of dry trichloroisocyanuric acid, dry surfactant particles, and bulking agents is disclosed. The mixture serves as a quickly dissolving chlorine release mixture used in shock treatment of substantial bodies of water. The surfactant is provided to wet the trichloroisocyanuric acid particles and facilitate their quick solution into the water.

Abstract: A ventilated cage and rack system which maximizes cage density within the rack is provided. The rack includes at least one air exhaust plenum, and at least one canopy disposed within the rack. The canopy is capable of supporting a first cage within the rack above the canopy, and also positioning a second cage below the canopy so as to maintain a gap between the top of the second cage and the canopy to permit air to be drawn into the air exhaust plenum from the interior of the second cage through the top of the second cage and to also permit ambient air to be drawn across the top of the second cage into the air exhaust plenum.

Abstract: A sipper tube cap assembly is provided having a cap with a flat surface and a curved wall. A circumferential flange is formed by the flat surface and further defines an opening in the cap. A stopper, having a hole formed therein, is positioned in said cap by said circumferential flange to retain the stopper within the cap. Finally, a sipper tube is provided which is positioned within the hole in the stopper, to extend through the opening.

Abstract: A rodent cage including a cage bottom having a plurality of integral side walls, a floor and an open top end. A peripheral lip extends continuously around the top end. A pair of recesses are disposed on the peripheral lip. A feeder assembly has a frame and at least one section descending therefrom. The frame has pair of flanges extending therefrom so that when the feeder assembly is disposed in the cage bottom the pair of flanges are mated with the pair of recesses, respectively. A bonnet is dimensioned in size for sealing the top end of the cage bottom. A lock is disposed on the bonnet for preventing rodents housed in the cage from displacing the bonnet from the cage bottom.

Abstract: A device for regulating exhaust air flow in a ventilation system when a rack is removed from the system. The device includes a housing forming an air conduit. A valve is mounted in the housing with the valve being moveable between an open position when the device is connected to the rack, and in one of a plurality of partially preset closed positions when the device is not connected to the rack. A valve adjustment member selects the one of a plurality of partially closed positions and is preset during factory testing. When valve is installed at facility and valve is removed from rack the adjustment is fully automatic. The technician merely disconnects the exhaust drop hose with valve attached, and valve automatically adjusts to a preset back pressure duplication position (partially closed position).

Abstract: A cage for receiving a multiple dosage feeder is provided. The multiple dosage feeder includes a food holding feeder member and a feeder housing member disposed in an opening in the cage. The food holding member holds a plurality of measured dosages of food or other substances, and at least a portion of the food holding member extends to the cage-interior side of the opening. A snap lock releasably secures the feeder housing member to the wall of the multiple dosage feeder. At least a portion of the food holding member is rotatable within the housing member so as to expose the single dosage of the plurality of dosages, while the housing member prevents access to any remaining dosages on the cage-interior side of the opening.

Abstract: A ventilated cage and rack system which maximizes cage density within the rack is provided. The rack includes at least one air exhaust plenum, and at least one canopy disposed within said rack. The canopy is capable of supporting a first cage within the rack above the canopy, and also positioning a second cage below the canopy so as to maintain a gap between the top of the second cage and the canopy to permit air to be drawn into the air exhaust plenum from the interior of the second cage through the top of the second cage and to also permit ambient air to be drawn across the top of the second cage into the air exhaust plenum.

Abstract: A multiple dosage feeder for a cage is provided. The multiple dosage feeder includes a frame having a cage-interior side, a food holding member rotatably mounted on the frame, and a food presentation member disposed on the cage-interior side of the frame. The food holding member holds a plurality of measured dosages of food or other substances, and at least a portion of the food holding member extends to the cage-interior side of the frame. The food presentation member permits access to a single dosage of the plurality of dosages by an animal within the cage. At least a portion of the food holding member is rotatable within the food presentation member so as to expose the single dosage of the plurality of dosages, while the food presentation member prevents access to any remaining dosages on the cage-interior side of the frame.

Abstract: A combination food and liquid dispenser for an animal cage including a first compartment and a second compartment being in vertical relation to each other. The second compartment is constructed to receive food therein and provide an animal access to the food item disposed therein and the first compartment is constructed to receive a liquid container therein and provide an animal with access to the liquid container disposed in the first compartment. A bracket assembly is affixed to the dispenser and supports the dispenser within the cage on less than four side walls thereof. A filter cap for the animal cage includes a body portion dimensioned to fit upon and cover over the top of the cage.

Abstract: A sipper tube insertion and removal apparatus is provided for easily and consistently inserting a sipper tube into a stopper with a hole and for also easily and consistently removing a sipper tube from a hole in a stopper. For insertion of a sipper tube into the hole of a stopper, the apparatus includes a sipper tube insertion head for holding the sipper tube, a stopper insertion platform for holding the stopper, and an actuator. The stopper insertion platform holds the stopper such that the hole of the stopper is aligned with the sipper tube, and the platform is disposed at a predetermined distance apart from the sipper tube insertion head. The actuator closes the predetermined distance between the sipper tube insertion head and the stopper insertion platform so as to cause the sipper tube to be inserted into the hole of the stopper.

Abstract: A filter change station is provided having a base board. A first guide support and a second guide support are mounted on the base board in facing relationship. A separator is mounted on at least the first guide support along a slide path of a cage top for separating a filter retainer from the cage top as the cage top moves along the guide support within the slide path.

Abstract: An animal cage rack locking mechanism is provided for releasable locking a cage to an animal cage rack. An indexing arm disposed in a sleeve extends into the slide path of the cage and is coupled to a locking arm also disposed in the sleeve. When the cage is slid into the rack, the indexing arm causes the locking arm to extend from the sleeve to lock the cage in place.

Abstract: An animal feeder that can be mounted on a wall of an animal cage includes a feeder assembly including a back wall, a trough region integrally formed with the back wall and a front wall integrally formed with the trough region and a securing member for securing the feeder asssembly to the wall of the cage. The feeder assembly includes a plurality of slots providing the animal access to a food item placed therein. The animal feeder may include a perch assembly releasably mounted to the feeder assembly. The perch assembly which includes a perch constructed from a plurality of wires, includes a mounting assembly for releasably mounting said perch assembly to said feeder assembly.

Abstract: A wire bar lid for use in an animal cage is provided having a thin perimeter having a substantially rectangular cross-section. A plurality of wires are supported within the perimeter below the plane of the perimeter.

Abstract: A quick disconnect water valve includes a female housing for receiving a male coupling member. The female housing is formed with a channel therein providing a water pathway. An O-ring is disposed within the channel. The O-ring is disposed between a first sleeve and a second sleeve which aligns the O-ring relative to a male coupling member received by the female housing.

Abstract: A wire bar lid for use in an animal cage is provided having a thin perimeter having a substantially rectangular cross-section. A plurality of wires are supported within the perimeter below the plane of the perimeter.

Abstract: A waste management disposal system which disposes of both solid and aerosol waste includes a housing divided into a solid waste containment area and a negative pressure plenum for drawing aerosol waste away from the solid waste containment area. A funnel is provided for guiding solid waste into the waste containment area and the negative pressure plenum draws the aerosol waste in a path orthogonal to the funnel. A filter is provided for filtering the aerosol contaminants from the air upon which it is being transported.