Abstract: The invention provides an apparatus for improving the water quality for hair and body care, wherein an exact impregnation ratio between CO2 and water may be maintained even at low water pressure by using a step piston 11, namely by using CO2 compressed gas cartridges which are refillable with CO2 compressed gas, and by eliminating cartridges into which water or moisture has penetrated.

Abstract: A process and an arrangement for hair care or therapeutic skin treatment are provided which most finely impregnate the heated and running water with CO.sub.2 directly before it is contacted with the hair or skin and which serve for lowering the pH value to values markedly below 7 due to the carbonic acid forming proportionately.

Abstract: A method of root fertilization in cultivated plants, particularly in the field of hydrophonics is provided wherein water is finely impregnated with a gas mixture of carbon dioxide and pure oxygen, whereby the mixing ratio of the carbon dioxide and the pure oxygen corresponds approximately to the natural solution ratio of carbon dioxide and oxygen in normally clean water at atmospheric pressure and room temperature and whereby the individual gaseous phases, respectively their inflow to the gas mixture, can be controlled when required from the gas mixing area.

Abstract: Structure for and method of cooling or heating a space which is exposed to a natural heat influence. The structure includes a first fluid store buried in the ground so as to be at the temperature of the surrounding earth, a heat exchanger positioned in a space to be cooled and means for passing a fluid between the first fluid store and heat exchanger in a closed circuit. The structure of the invention may also include heat units for the space and hot water heaters connected in the closed circuit between the heat exchanger and first fluid store and a heat pump connected between the heat units and water heaters and the closed circuit. In a further embodiment of the invention, a second fluid store is provided in conjunction with the heat exchange structure which may also be buried so that waste heat may be utilized to heat the fluid in the second fluid store.

Abstract: A vessel (1) for impregnating water with carbon dioxide is pressure-tight and has inlets (4, 5) for water and carbon dioxide. Within the vessel, a cooling surface (9) is provided, connected to an external refrigeration circuit. Within the vessel and below the level of water, an underwater pump (15) is provided for producing a circulation of water inside the vessel. Carbon dioxide in finely divided form is introduced into the flowing water, preferably via the pump (15) for producing the water circulation. In use, an ice jacket (11 ) forms on the cooling surface (9).

Abstract: By specific setting of the CO.sub.2 content and pH value of the spraying mixtures containing, apart from water, minerals and/or products for pest and disease control of the plant, the metabolism of plants is specifically stimulated and encouraged so that storage in the plants of surplus nutrients is avoided and their health and resistance is improved. The spraying mixture is constantly and over an extended period kept circulating. Both pH value and CO.sub.2 content of the spraying mixure is constantly measured. While doing this, the Ph value of the spraying mixture is exactly set. In this way the existing agricultural spraying devices having a spraying mixture circulating system are economically operated.

Abstract: A method of qualitatively and quantitatively improving the fertilization of plants comprising impregnating a plant nutrient salt solution, optionally containing herbicides, fungicides or insecticides, with an amount of CO.sub.2 effective to economically increase the solubility of said nutrient salt whereby the quantitative uptake through the surface is improved.

Abstract: An apparatus for impregnating water with carbon dioxide provides a stepped-flow channel with radial shoulders lying in planes perpendicular to the axis of the flow channel creating a zone of increased flow velocity downstream of each shoulder. Radial bores open into each stepped section adjacent the respective shoulder and communicate with a chamber surrounding the flow channel to supply the carbon dioxide to the liquid which is permitted to fill the flow channel and flow freely into an inlet section.

Abstract: An automatic pistol is disclosed which is recoil-operated and has mechanical locking means. The locking action between the barrel casing and the breech member is effected by means of an amply dimensioned locking member pivotally supported within the breech member and participates in the movement thereof. Coupling means provided between the trigger lever and the striking lever are formed by crank-like means and are adapted to be controlled by corresponding control portions respectively provided on the trigger lever and the breech member or stock so that the striking lever will always move along the same distance whether the striking lever is manually cocked, cocked by the breech member, or cocked and released by pulling on the trigger. The disclosed pistol includes safety means and the pistol and safety means are operable easily and quickly with equal ease by both left-handers and right-handers.

Abstract: A method and an apparatus are proposed in order to eliminate the influence f viscosity variations in the syrup on the accuracy of metering in vending machines for the production and dispensing of still mixed drinks by considerably raising the injection pressure for the water, to eliminate the effect of the susceptibility of these syrups to spoilage by intentional aeration of the injection zone in the case of mixed drinks based on citrus syrups, and at the same time to keep the pulp particles of the citrus syrup in a desired state of suspension in the prepared mixed drink by intentional introduction of a predetermined quantity of air during the dispensing process, while avoiding foaming and clouding of the mixed drink by intentionally cutting off the introduction of air in the case of mixed drinks based on clear syrups, without the raised injection pressure having to be omitted even with these syrups.

Abstract: For the purpose of dispensing viscous concentrates, particularly or organic ubstances, a cylindrical pumping space is defined by a hollow cylindrical body and two non-return valves associated with the ends of said body, said pumping space being supported in a radial direction at least during each pumping stroke in such a way that changes in volume are only possible in an axial direction in relation to said pumping space. The metering accuracy capable of being attained by means of the device of the invention makes it possible, with the device being of simple and low-cost construction, to dispense extremely small quantities of a concentrate with the device being operated at a pumping cycle frequency which corresponds to the frequency of the power mains by means of which an electromagnetic actuating coil is operated.

Abstract: A thermal engine arrangement comprising a series circuit charged with a vaporizable refrigerating medium, thermal fluid including a storing and preheating tank, an evaporator connected to the storing and preheating tank, a hood enclosing the storing and preheating tank and evaporator directly exposed to the heat of the air and to solar radiation defining a common heating chamber for the storing and preheating tank and evaporator, a thermal engine connected to the evaporator driven by evaporated thermal fluid from the evaporator, a condenser connected to the thermal engine for receiving spent thermal fluid therefrom, a collector tank connected to the condenser for receiving condensate therefrom and a condensate pump connected between the collecting tank and storing and preheating tank for transferring condensed thermal fluid from the collector tank to the storing and preheating tank. Said condenser and collecting tank being located beneath the surface of the ground in direct heat transfer with the ground.

Abstract: A container from which liquid is dispensed has a metering chamber arranged t its mouth. A metering device is arranged to cooperate with the outside of this metering chamber to control the amount of liquid allowed to flow out. The flow can be controlled either by determining the time for which the metering device opens the metering chamber, or by constructing the metering chamber as a pump chamber of a specified volume so that the metering device pumps the liquid out of the chamber and therefore dispenses a predetermined volume. In the second method, the metering chamber includes an axially compressible bellows portion which forms a pump chamber. Non-return valves are provided at both ends of the pump chamber, and the metering device comprises plates on either side of the bellows section which can be drawn towards one another to squeeze the bellows section.

Abstract: Apparatus for accurately dosing fluids of varying viscosity, especially hly viscous liquids, including a valve channel adapted to be vertically arranged and secured at one end to the inverted open end of a container for the liquid, a closure portion positioned within said valve channel including a ferrite core secured thereto, means for guiding the closure element vertically within the valve channel, a closure member secured to the bottom of the closure portion adapted to close the valve channel due to the weight of the closure element, a conveying element secured to the closure element for rotation therewith and an electromagnetic device surrounding the closure portion for simultaneously producing vertical and rotational movement of the closure portion and at least rotation of the conveying element whereby on energizing the magnetic device the closure portion is raised to open the valve channel to allow fluid flow through the valve channel and the closure portion is rotated along with the conveying element t

Abstract: A device for and method of metered dispensing of liquids. The device compes a dispensing container, a sealed compensating vessel positioned within the dispensing container and engaged therewith about the opening of the dispensing container and a dosing structure positioned in the opening of the dispensing container and extending into the dispensing container and compensating vessel, said dosing structure and dispensing container having portions cooperable to form a continuous reinforcing bridge between two opposed flexible wall portions of the container. The method includes first creating a vacuum in the dispensing container prior to breaking the seal of the compensating vessel with a portion of the dosing structure by spreading the flexible wall portions of the container with the reinforcing bridge.

Abstract: A plurality of different liquid flavoring agents is accommodated at static pressure in respective compartments having bottom dispensing valves, and the interior bottom region of each compartment is placed in communication with the atmosphere above the top of the compartment. A quantity of carbonated water is discharged into an open receptacle at a location spaced from the compartment, so that it travels at atmospheric pressure towards the valves associated with the respective compartments. When the discharged quantity of carbonated water reaches the valve associated with the compartment containing the selected liquid flavoring agent, the valve of the compartment in question opens and discharges a preselected amount of the liquid flavoring agent into the carbonated water with which the flavoring agent becomes mixed to form a finished beverage that can be dispensed.

Abstract: A container for metered dispensing of liquid. The container in an inverted orientation is connected at its withdrawal and venting aperture to an electromagnetically actuated metering valve, wherein the metering valve has a movable valve element. Within the inverted container there is a cup-shaped vessel having a tear-off cover which simultaneously forms the closure of the container and has its rim sealingly connected to the rim of the withdrawal and venting aperture.

Abstract: A high-viscosity liquid is accommodated in a container whose outlet directly communicates with the intake port of a pump. The intake port communicates via a pump chamber with an outlet port of the pump, and an impeller having flexible blades rotates eccentrically in the chamber so that the blades wipe the surface of the wall bounding the chamber and pump liquid through the outlet port into a mixing chamber through which a water nozzle directs a stream of water which traverses the chamber and becomes mixed with the liquid to issue from an outlet of the mixing chamber as a completed beverage.

Abstract: An apparatus and a process for carbonating liquids, has inlet pipes for admitting a carbonating gas and a liquid into a container and outlet pipes for dispensing the carbonated mixture from the container. Cooling coils are provided in the container for forming an interior and an exterior surrounding ice layer so that the mixture can come into thermal contact with at least the interior ice layer and be cooled thereby. Electrodes are provided for preventing the thickness of at least the interior ice layer from exceeding a predetermined value.

Abstract: A container for metered dispensing of liquid. The container in an inverted orientation is connected at its withdrawal and venting aperture to an electromagnetically actuated metering valve, wherein the metering valve has a movable valve element. Within the inverted container there is a cup-shaped vessel having a tear-off cover which simultaneously forms the closure of the container and has its rim sealingly connected to the rim of the withdrawal and venting aperture.