A nozzle through which a liquid coolant is discharged is provided with an outer tube, a projecting member and an inner tube disposed inside the outer tube, and an elastic body disposed between the inner tube and a discharge port of the outer tube. If foreign matter accumulates on a nozzle opening of the inner tube, the elastic body is compressed by the inner tube under the pressure of the coolant, so that the inner tube moves toward the discharge port. Consequently, the projecting member penetrates the nozzle opening, thereby automatically removing the foreign matter accumulated on the nozzle opening.

Various embodiments of a system for automatically sensing and spraying plants and/or plant precursors as they are planted or otherwise distributed on and/or within the ground is disclosed.

An agricultural sprayer arrangement includes a chassis; a ground engaging traction member carried by the chassis; a liquid tank carried by the chassis; a boom carried by the chassis; a conduit associated with the boom in fluid communication with the liquid tank that acts as a fluid flow path; a nozzle having an inlet in fluid communication with the conduit; a first flow sensor placed upstream of the inlet in the fluid flow path that provides a first flow signal; a second flow sensor placed downstream of the inlet in the fluid flow path that provides a second flow signal; and an electrical processing circuit coupled to the first flow sensor and the second flow sensor that is configured to compare the first and second flow signals to determine a flow rate decrease and issue an alarm if the flow rate decrease is less than a predetermined threshold level.

A method of generating a building assembly that includes spraying a coating material onto a plurality of pieces of substrate disposed on a first assembly face. The spraying includes spraying the coating material onto the plurality of pieces of substrate via a sprayer configured to apply the coating material to a target surface via a nozzle coupled with a mobile storage container storing the coating material, the coating material impregnating voids of the substrate. The method also includes allowing the coating material impregnating the voids to dry and harden and become rigid to generate the building assembly.

A nozzle for spraying materials, in particular dispersions, emulsions or suspensions, comprising a nozzle body having a nozzle mouthpiece.

Methods for controlling or regulating the volume flow rate of a substance to be sprayed and/or a gas from a nozzle suitable for spraying substances, particularly dispersions, emulsions or suspensions, wherein the nozzle has a nozzle body comprising a nozzle mouthpiece, wherein the nozzle body has an inner pipe, which is connected to a supply for the substance to be sprayed and has an inner wall and a discharge port, and an outer pipe, which is spaced from the inner pipe, is connected to a supply for a gas and has a discharge port, and the discharge port of the inner pipe and the discharge port of the outer pipe are arranged in the region of the nozzle mouthpiece.

The invention relates to a nozzle (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001) for spraying substances, in particular dispersions, emulsions or suspensions.

Please replace the Abstract at page 41 with the following replacement paragraph: A nozzle, for spraying materials, in particular, dispersions, emulsions, or suspensions.

A pressure regulator comprises a primary fluid inlet for connection to a source of high pressure fluid, a fluid outlet for connection to a space to receive the high pressure fluid, a convergent-divergent nozzle having an upstream convergent section, a throat and a downstream divergent section, the primary fluid inlet being in fluid communication with the convergent section of the nozzle; and an outlet pipe having an upstream end arranged around but radially spaced from the outlet of the divergent section of the nozzle, the outlet pipe arranged to receive fluid flow from the outlet of the divergent section of the nozzle and conduct the fluid flowing from the nozzle to the fluid outlet.

The invention relates to an apparatus for the binding of dust, comprising a binder reservoir, which provides liquid binder which is under pressure, a binder line which is connected to the binder reservoir, wherein there is connected to the binder line at least one spray nozzle which may be located in the vicinity of a dust source. The apparatus is in particular so designed that large areas, which may extend over distances of several 100 m, may be supplied with binder, which may also be discharged, with these dimensions, in pulses at short intervals (1 second up to a few minutes).