Abstract: The present invention relates to a system for dissolving at least one detergent tablet or detergent granulate in water and thereby creating a detergent liquid, said system comprising a chamber (103) for dissolving said tablets or granulate, wherein said chamber comprises an opening (105) for receiving said detergent tablet and said water and a detergent liquid outlet (135, 137). The chamber further comprises an inner colander (125) for positioning said at least one tablet or detergent granulate. Thereby, a very efficient dissolving process can be performed, and a uniform detergent liquid is obtained. By positioning the tablets or granulate inside the colander, it is ensured that all sides of the tablet are in contact with the liquid in the chamber.

Abstract: At least two series-connected storage cells have hot liquid supplied to or removed from a first cell and cold liquid supplied to, or removed from, a final cell. The liquid temperature decreases from the first cell to the final cell. Individual cells are connected from the warmer cell lower region to the colder cell upper region. At least one cell is closed by a cover forming a gas space between the liquid and the cover. A gas line branches off from the gas space entering into the liquid of a colder cell or into the liquid in the connection of two adjacent cells. At least one of the adjacent cells has a lower temperature than that of the cell from the gas space of which the gas line branches off.

Abstract: Disclosed is a heat accumulation tank system intended for use as a heat source of, for example, an air conditioner and which is installed, for example, in a building or under a green zone, a stadium or a parking area. The heat accumulation tank system is composed of a plurarity of water tanks which are connected through a communication passage such as a communication pipe. The pressure in the communication passage is controlled by means of a pressurizing device or a vacuum device, so that the state of communication is controlled such as to establish or interrupt the communication between the water tanks or to control the rate of flow of water between these water tanks.

Abstract: Disclosed is a heat accumulation tank system intended for use as a heat source of, for example, an air conditioner and which is installed, for example, in a building or under a green zone, a stadium or a parking area. The heat accumulation tank system is composed of a pularity of water tanks which are connected through a communication passage such as a communication pipe. The pressure in the communication passage is controlled by means of a pressurizing device or a vacuum device, so that the state of communication is controlled such as to establish or interrupt the communication between the water tanks or to control the rate of flow of water between these water tanks.

Abstract: A flushing cistern to produce an energetic flush with a reduce volume of water, some 5 or 6 liters for low-level use. The cistern has a housing supporting a rotatable water holder having a large flow aperture in a curved surface and otherwise closely conforming to the inside of the housing. The flush outlet is a large tapering outlet of hydraulically-efficient form to which the aperture matches when the holder is rotated to produce a flush. The filling of the water holder can be arranged to occur only when the holder is in the correct position. Fault conditions are indicated by a warning flow of water from an overflow or elsewhere.

Abstract: A siphon is provided having a generally S-shaped configuration with a widely flaring inlet and discharge. The siphon is adapted for use with a fluid storage tank which is positioned adjacent a trough to be flushed by the siphon. The siphon discharge opens upward onto a floor surface of the trough. The siphon inlet is provided with a weep hole. The siphon includes a trigger mechanism which activates a flushing mode of the siphon during a flushing cycle. Multiple siphons may be interconnected by the trigger mechanism so as to produce simultaneous flushing thereof.

Abstract: A method and apparatus for producing refrigeration without loss of refrigeration or introduction of magnetic disturbance when using a displacer-expander type cryogenic refrigerator pneumatically actuated by a rotary valve coupled directly to a motor, the displacer-expander, rotary valve and motor being a single unit, by removing the motor from the unit and driving the valve by means of a flexible shaft. The flexible shaft can be disposed within a fluid conduit used to deliver high-pressure fluid to said refrigerator.