Abstract: A burner for the partial combustion of a finely divided solid fuel, comprising a central channel with a central outlet for free-oxygen containing gas, laterally disposed conduit means for finely divided solid fuel, the conduit means having outlet means whose major axis is positioned to intersect the axis of the central outlet and being asymmetrically arranged with respect to said central outlet. The invention further relates to a process for the partial combustion of a finely divided solid fuel, wherein one or more burners of the above type are applied.

Abstract: An improved spray booth is provided for use in forming high quality thin films by controlling the spray parameters related to film formation. A spray nozzle design is selected which permits control of the spray footprint on a heated substrate. A projected atomized liquid is formed to the selected spray configuration by directing spray cones of air toward the atomized liquid. Dwell time of the spray material adjacent the hot substrate is then controlled by controlling the velocity of airflow within the spray chamber and adjacent the substrate. To promote a gas phase reaction, a roof section is provided with reduced airflow wherein sufficient dwell time is provided for the vapor reaction to occur. Where a liquid phase reaction is provided, high velocity airflow is maintained to promptly remove reaction products and spray material which has not reached the surface after a selected time period.

Abstract: A high voltage charge at very low amperage is impressed on a bath of oil or other lubricant in a dielectric header through a submerged electrode. A grounded high speed moving metal strip attracts streams of the charged bath across its width through apertures or slots provided in the header. Pressurized air jets directed at these streams disperse the streams into a multitude of finer crossing streams which coat the strip completely and evenly. A recovery system for the oil or other lubricant is provided.

Abstract: An atomizer head for use with a spray gun has a centrally located paint spray orifice with an essentially elliptical cross-section and a pair of compressed air output orifices offset from the paint spray orifice. The output air forms a screen, with an elliptical cross-section, that prevents the paint spray from breaking up.

Abstract: An air atomizing liquid spray nozzle is characterized by a body having a generally elliptical outlet end defining a generally elliptical liquid outlet orifice and an air cap having a generally elliptical air outlet aperture concentric with and surrounding the elliptical outlet end of the body for causing a complementary annular elliptical pattern of compressed air to concentrically surround and impinge upon liquid flowing in an elliptical pattern from the outlet orifice and to directly atomize the liquid into a flat, fan-shaped spray pattern with reduced consumption of air and less noise than prior art nozzles.

Abstract: This hydrostatic atomization paint spray-gun produces A flat jet of paint surrounded by several flat jets of compressed air and comprises at least two complementary jets of compressed air coplanar with the paint jet and converging towards the latter. Thus, the width of the paint jet can be adjusted to reduce it for example to one-half of its width without said complementary jets.

Abstract: There is described a droplet aspirator for an ink jet printer. The aspirator includes a housing having a tunnel therein, which is spaced from an ink jet nozzle which emits an ink jet stream which passes through the tunnel. A gas stream is also directed through the tunnel at substantially the same velocity as the ink jet stream for reducing the aerodynamic effects on adjacent ink droplets. The tunnels cross-sectional area is substantially constant from one plane to the next when measured in any given plane transverse to the longitudinal axis, for maintaining the velocity of the gas stream constant. The tunnel has a circular cross-section when used in a nozzle per spot system, and when used in an analog deflected system, has an entrance of one geometry, with the tunnel changing in geometry along its longitudinal axis to a different geometry at its exit. Preferably, in the analog deflected system, the entrance geometry is circular and the exit geometry is elliptical or rectangular.