The invention relates to a method and to a module (I) for applying a viscous medium (19), in particular an adhesive or lacquer, to a surface (16) wherein the module (I) comprises a reservoir (2) that can be fed with the viscous medium (19), wherein the outer surface (4) of the module (I) comprises an outlet region (5) for the viscous medium (19), wherein the module (I) comprises at least one nozzle channel (6) which fluidly connects the reservoir (2) to the outlet region (5), wherein a smallest diameter (dmin) of the at least one nozzle channel (6) is smaller than 0.8 mm and wherein the module (I) does not comprise any movable parts for closing the at least one nozzle channel (6).

A die head apparatus is provided with a front blade, a rear blade, a center blade, and an internal impurity removal space. The front blade and the center blade are configured to form a pool of a slurry. The internal impurity removal space is positioned between the center blade and the rear blade. A distance separating the rear blade and the substrate is set to be smaller than the distance separating the center blade and the substrate.

An applicator is disclosed for applying sealant to a moving substrate. The applicator includes a wheel having a periphery. A plurality of spaced apart footprints extends around the periphery of the wheel and each footprint has a sealant receiving feature. A reservoir is provided for containing a supply of sealant to be applied to the moving substrate. The wheel is rotatably mounted at least partially in the reservoir such that as the wheel rotates, each of the spaced apart footprints repeatedly moves through a supply of sealant in the reservoir to pick up a charge of sealant, around one side of the wheel toward the moving substrate, adjacent the moving substrate to transfer the sealant charge to the substrate, and around the other side of the wheel back toward the supply of sealant. At least one stop is formed on each of the footprints for inhibiting sealant picked up by the footprint from being urged rearwardly on the footprint by high speed rotation of the wheel. A backstop may be formed at a trailing end of each footprint and mid-stops may be formed between a leading end of each footprint and the trailing end.

A coating apparatus for double-sidedly coating a porous web with a dope, includes: (i) a slot-die coating head comprising an upper lip, a lower lip and a slot between the upper lip and the lower lip, (ii) a counter element arranged opposite the lower lip across a reference plane, (iii) a slit defined between the lower lip and the counter element for passing a porous web therebetween, the slot opening up towards the slit, and (iv) a web positioning element. The web positioning element is the upper lip of the slot-die coating head. The upper lip protrudes up to the reference plane so that there is an offset between the upper lip and the lower lip, or a spacing structure on the counter element. The spacing structure protrudes up to the reference plane so that there is an offset between the spacing structure and the counter element.

A coating apparatus for double-sidedly coating a porous web with a dope, includes: (i) a slot-die coating head comprising an upper lip, a lower lip and a slot between the upper lip and the lower lip, (ii) a counter element arranged opposite the lower lip across a reference plane, (iii) a slit defined between the lower lip and the counter element for passing a porous web therebetween, the slot opening up towards the slit, and (iv) a web positioning element. The web positioning element is the upper lip of the slot-die coating head. The upper lip protrudes up to the reference plane so that there is an offset between the upper lip and the lower lip, or a spacing structure on the counter element. The spacing structure protrudes up to the reference plane so that there is an offset between the spacing structure and the counter element.

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 glue supply apparatus for a gypsum board supplies glue to a board base paper of the gypsum board. The glue supply apparatus includes a tank section configured to store the glue; a supply port disposed near an end of the board base paper of the gypsum board and configured to supply the glue; and a pump section disposed on a glue supply path between the tank section and the supply port. The pump section is a positive displacement pump.

A glue supply apparatus for a gypsum board supplies glue to a board base paper of the gypsum board. The glue supply apparatus includes a tank section configured to store the glue; a supply port disposed near an end of the board base paper of the gypsum board and configured to supply the glue; and a pump section disposed on a glue supply path between the tank section and the supply port. The pump section is a positive displacement pump.

A system for coating of a donor material onto a laser radiation transparent substrate, the system including a donor material applicator, applying donor material to the laser radiation transparent substrate, a multi-pass precise donor material thickness determiner for providing a desired thickness of the donor material on the laser radiation transparent substrate and including a linearly displaceable blade support, a layer thickness uniformizing blade lockably pivotably mounted onto the linearly displaceable blade support about a pivot axis, the blade having a straight edge and a blade position maintainer operative for maintaining the straight edge at a desired separation distance from the laser radiation transparent substrate, the separation distance being uniform along the straight edge of the layer thickness uniformizing blade.

An additive manufacturing system for printing an article including a build plate having a build surface between an inner radius and an outer radius that may receive powder particles and a recoating assembly that may distribute the powder particles onto the build surface to form a build layer of the article. The recoating assembly includes a support jig having a first end, a second end, and a support wall extending between the first and second ends and a recoater blade coupled to the second end and extending along at least a portion of a length of the support wall. A shape of the recoater blade is such that, when the recoater blade is positioned against the build surface, an angle between the recoater blade and a tangent at each radii of the build plate is substantially constant.