Abstract: The jet exiting from jet nozzles is guided along a guide surface for a jet nozzle with one or more nozzle channels disposed next to each other and in parallel, where the hydraulic diameter of the nozzle channels is from about 1.5 to 4 millimeters. In order to limit sharply and without spray the jet exiting out of the jet nozzle crosswise to its axis on the sides and in order to maintain it of uniform width over a large part of its length, the guide surface is of concave shape, the nozzle channels merge without step into the cylindrical jacket surface, the axes of the nozzle channels and the guide surface include an angle of from 0.5 and 2.5 degrees, and the guide surface is provided with a tear-off provision with a cutting edge.

Abstract: An electrostatic spray gun for spraying solid particulate powder materials while entrained in a gas medium, including an electrically non-conductive housing having an electrode extending forwardly therefrom and a straight electrically non-conductive powder transport tube adjustably and replaceably mounted within the housing so as to enable the discharge end of the tube to be positionably adjusted relative to the electrode or to be replaced with a tube of differing internal diameter so as to vary the transport velocity at which the powder is emitted from the discharge end of the tube.

Abstract: A water supply unit for an ice-making machine provided with a pair of freezing plates each presenting number of vertically extending partitions on their front sides, the freezing plates being mounted in an upright position with their rear sides facing to each other, and with a cooling coil mounted between the rear sides of the freezing plates. The water supply unit is placed on the top of the freezing plates and has an ice-making water conduit section connecting to the front surfaces of the freezing plates via water supply plates and a flushing water conduit section connecting to the rear sides of the freezing plates. The flushing water conduit section of the supply unit is received into and fitted between the upper ends of the freezing plates for securely positioning the water supply unit with respect to the freezing plates.

Abstract: An ultrasonic liquid atomizer particularly for high volume flow rates is disclosed. An enlarged tip with a plurality of orifices is provided to increase the flow rate. A gradual transition to the enlarged atomizer tip can also be provided to enhance performance. A barrier disposed adjacent the atomizing surface of the atomizer tip enhances proper atomization of liquid, particularly when the enlarged atomizer tip is used, and particularly when such an atomizer is vertically oriented with the tip facing downwardly. A lip extending about the atomizer surface prevents unatomized liquid from leaving the atomizing surface in radial directions.

Abstract: An atomizer for atomizing liquid, having a disc clamped between two plate members, the disc being provided with a plurality of radial slits which, in combination with the flat surfaces of peripheral regions of the plate members, constitute liquid atomizing nozzle ports having a tetragonal cross-section. This arrangement permits an easy formation of a plurality of nozzle ports and remarkably suppresses the tendency of clogging of the nozzle ports by foreign matter. In addition, it is possible to form precisely fine nozzle ports of a diameter which could never be attained by the conventional process. The tetragonal cross-section of the nozzle ports provide peculiar jetting characteristics for attaining good atomization of the liquid.

Abstract: A versatile mixing nozzle for dispensing polyphase fuels into a combustion zone of a boiler. The nozzle is characterized by a plurality of mixing chambers, a relatively low pressure-drop spray nozzle design and a stationary dispersing disk and radiation-protective shield partially projecting in front of the nozzle outlet ports.

Abstract: An apparatus is provided for forming CO.sub.2 snow and includes a CO.sub.2 line having an outlet end and an inlet end adapted for communication with a source of liquid CO.sub.2 under pressure. A snow forming head is provided and comprises a generally horizontal elongated laterally and downwardly opening channel member and a CO.sub.2 discharge conduit is disposed in and extends along the channel member. The conduit includes opposite side small diameter outlet openings formed therein and spaced longitudinally therealong opening outwardly toward and spaced inward of the opposing sides of the channel member. One end of the conduit is closed and the outlet end of the CO.sub.2 line is sealingly communicated with the other end of the conduit. At least the portion of the conduit having the small diameter outlet openings formed therein is of a greater internal cross-sectional area than the CO.sub.2 line whereby movement of liquid CO.sub.

Abstract: A gas heating appliance of the kind having a gripping handle through which fuel is supplied to a common feed pipe carrying a plurality of burners. Each burner has a separate nozzle branched off the feed pipe and a pair of opposing curved baffle walls are provided at each nozzle, the walls of each pair being separated by gaps at each nozzle, all the gaps being in mutual alignment. The appliance of the invention is particularly applicable to the heating of plastic foil type materials.

Abstract: A spray nozzle assembly for a windshield of an automobile includes a housing having at least one upwardly extending vertical wall and an interior chamber therein, wherein a plurality of passageways extend outwardly from said interior chamber. A mounting leg having a continuous bore therethrough is affixed onto the housing, wherein the bore communicates with the interior chamber. The leg is adapted to be received by a fluid supply assembly. A plurality of spray nozzle members are embedded into passageways, wherein the spray nozzle members are recessed into the upwardly extending wall. A deflector shield is affixed onto the housing for deflecting the fluid spray toward the windshield of the automobile.