Abstract: A system for microbially deactivating items. The system includes a circulation system for circulating a microbial decontamination fluid through a deactivation chamber that forms a part of the circulation system. A container for holding items to be deactivated is provided. The container has a sealable cavity in which the items to be deactivated may be placed, and at least one valve element that is movable between an open and a closed position to regulate fluid flow into the cavity. An actuator in the deactivation chamber is operable to move the valve element to an open position when the container is disposed within the deactivation chamber, wherein the cavity within the container is in fluid communication with the circulation system when the valve element is in the open position.

Abstract: An improved control valve in combination with a pressurized water closet having a housing, a spool rotatable within the housing, a valve stem threading engaging the spool but fixed from rotating relative to the housing and a needle valve extending from the valve stem and into the housing orifice, creating a self cleaning valve adjustable by rotating the spool, which adjusts the depth of the needle valve in the orifice, and thus adjusting the effective opening of the orifice.

Abstract: A water discharge assembly includes an outlet having a neck extending from a top thereof and an overflow pipe is connected to the outlet. A control member has a top and a tubular member extending downwardly from an underside of the top, wherein the tubular member has at least one opening defined through a periphery thereof. The tubular member is movably inserted in the outlet with the underside of the top movably in contact with a top edge of the neck. A tube is fixedly disposed above the control member and has a top portion. A slot is defined in a periphery of the tube and located near the top portion and a cover is pivotally disposed to the tube so as to cover the slot. A spring and a disk are respectively received in the tube, the disk having a tiny passage defined longitudinally therethrough. A rod extends through the top portion of the tube and the spring, and the disk is fixedly mounted to the rod which is fixedly connected to the top of the control member.

Abstract: A flushing device controllable for discharging a desired amount of water after use of a toilet is provided with a cylinder supported within the tank, a piston slidable in the cylinder and divides the inner space thereof into an upper chamber and a lower chamber with variable volumes, on the piston there are provided with through holes for communicating these two chambers, and a flexible baffle member is attached to the bottom surface of the piston and capable of admitting the water to flow from the upper chamber into the lower chamber.

Abstract: A partial flush apparatus, for use in conjunction with a conventional flush toilet, utilizes a pneumatic time delay mechanism for partially flushing the contents of the water tank into the toilet bowl. An extension member is secured to the conventional flush handle lever arm and a cable extends between the extension member and a plunger of the pneumatic time delay mechanism. When depressed, the plunger lifts the extension member and thereby partially opens a flapper valve at the bottom of the water tank for a predetermined time. The pneumatic time delay mechanism includes a spring for biasing the plunger to a released position after the plunger has been depressed. The plunger incoporates a one-way valve for facilitating movement of the plunger to the depressed position. The plunger also includes a longitudinal bore forming part of a fluid conducting path that controls the return of the plunger to the released position.