A selective laser sintering system includes a leveling roller having a first orientation. The leveling roller is configured to roll over a first feed bin. The build chamber is configured to receive, from the first feed bin and by the leveling roller, a transfer of a portion of matrix material. The selective laser sintering system is configured to transfer the portion to the build chamber in a number of orientations.

A selective laser sintering system includes a leveling roller having a first orientation. The leveling roller is configured to roll over a first feed bin. The build chamber is configured to receive, from the first feed bin and by the leveling roller, a transfer of a portion of matrix material. The selective laser sintering system is configured to transfer the portion to the build chamber in a number of orientations.

Apparatus and associated methods relate to remote priming of a texture sprayer. The texture sprayer includes a main unit, a hose assembly and a spray gun, the main unit includes an air compressor, a sensor that senses a parameter of air compressed by the air compressor, and a texture material pump that is activated and deactivated in response to the parameter sensed. A spray gun can be remoted coupled to the main unit via the hose assembly. The spray gun includes a nozzle, from which the texture material is forcefully expelled as a spray, a trigger, and a prime valve. Actuation of the trigger causes the spray gun to mix the compressed air with the texture material and to forcefully expel the texture material as a spray from the nozzle, thereby causing flow of the compressed air. Opening the prime valve releases the compressed air thereby causing flow of the compressed air.

A multicolor powder center is disclosed for supplying at least one powder spraying device with different types of coating powder as required. The multicolor powder center has a first powder container for receiving a first type of coating powder, at least one second powder container for receiving a second type of coating powder, and at least one pump unit comprising at least one powder pump. The pressure side of the at least one powder pump is fluidically connected or can be fluidically connected to the powder inlet of a powder spraying device. The at least one pump unit and/or the powder container can be moved relative to each other such that the suction side of the at least one powder pump is fluidically connected or can be fluidically connected either to the interior of the first powder container or the interior of the at least one second powder container as required.

A particle blast apparatus or system entrains blast media particles from a particle source into a transport fluid which already has blast media particles entrained therein. The system may have, prior thereto, entrained blast media particles into the transport fluid which at that time did not already have blast media particles entrained therein. The particle types may be dissimilar, such as dry ice particles and abrasive media particles.

A discharge apparatus, a forming apparatus, a method of operating the discharge apparatus, and a method of producing a formed body are disclosed herein. In some embodiments, a discharge apparatus is used to collide a particle with a fixed surface to fix the particle to the fixed surface, the discharge apparatus includes a first dispenser for discharging an aerosol containing the particle toward the fixed surface at a first discharge rate, and a second dispenser for discharging a gas toward the fixed surface at a second discharge rate faster than the first discharge rate, and the second dispenser discharges the gas so that the gas at least partially overlaps with the aerosol to accelerate at least a portion of the aerosol toward the fixed surface to fix the particle to the fixed surface.

In an apparatus for applying rock dust with foam to a mine wall to suppress mine fires and prevent explosions, foam and air-entrained rock dust are separately conveyed to a combination nozzle and mixing device. The air-entrained rock dust moves axially through a passage into an enlarged chamber while foam moves through an array of openings surrounding the passage that direct the foam in a helical path. The helical movement of the foam, and the reduction of the velocity of the air-entrained rock dust resulting from its movement into the enlarged chamber, enhance mixing. The mixture passes from the enlarged chamber through a restricted nozzle to increase the velocity of the mixture for effective spraying. The restricted nozzle has an array of internal flow-interrupting baffles that further promote mixing by generating turbulence, condense the stream, and shape the spray pattern.

An embodiment is a nozzle for use in additive manufacturing and other applications. The nozzle defines a flow path and is configured to generate a supersonic flow of particles or fluid during operation. The embodiment provides at least one auxiliary flow path port that is configured to introduce an auxiliary flow into the nozzle relative to the flow path that protects an internal surface of the nozzle from wear and corrosion, thereby extending the life of the nozzle for extended periods of continuous operation. An embodiment centralizes particle location along its continuous flow path to achieve small footprint material deposition, thereby increasing 3D print resolution for building more intricate components.

The apparatus for coating systems comprises: a first feeding unit provided with first loading and unloading means of a first coating powder; a second feeding unit provided with second loading and unloading means of a second coating powder; a pump assembly associated with a spraying system for sending the first powder and the second powder into a coating booth; connecting means of the pump assembly to the first feeding unit and to the second feeding unit, variable between: a first configuration, in which the pump assembly is operatively connected to the first feeding unit for sending the first powder into the booth; and a second configuration, in which the pump assembly is operatively connected to the second feeding unit for sending the second powder into said booth.

A multicolor powder center is provided for supplying at least one powder spraying device with different types of coating powder as required. The multicolor powder center has at least one powder container for receiving coating powder and at least one pump unit comprising at least one powder pump, in particular a dense flow pump or a diluted flow pump. The pressure side of the at least one powder pump is fluidically connected or can be fluidically connected to the powder inlet of a powder spraying device. The pump unit is paired with a docking unit, via which the suction side of the at least one powder pump can be fluidically connected to the interior of the powder container as required.