The invention relates to a discharging apparatus for discharging loose and in particular pulverulent material that is hazardous to health from rigid or flexible containers (12), in particular bags and barrels (13), comprising a discharge chamber (2) which has a discharge opening (5) for discharging the material after removal from a container (12) and which additionally has an insertion opening (3) for at least partial insertion of a container (12) into the discharge chamber (2). According to the invention, the discharge chamber (2) has a ventilation opening (4) which is arranged at a side of the discharge chamber (2) opposite the insertion opening (3) and which is connected to pump means (10) in such a way that an air stream can be generated inside the discharge chamber (2), which causes a laminar air flow starting from the insertion opening (3) and leading in the direction of the ventilation opening (4).

In a laboratory hood system having a housing with an access window opening into an interior work chamber for performing laboratory processes, and an air circulation system for creating an air flow from the laboratory environment inwardly through the access window into the work chamber for preventing hazardous materials from escaping into the laboratory environment through the access window, one or more air intake control devices are disposed in a selected location or locations at the access window to overcome any tendency for air turbulence to occur. The air intake control device has an air flow channel extending from an air intake opening to the laboratory environment to an air discharge opening to the work chamber, with a constriction in the channel for causing a venturi-effect increase in air velocity while flowing through the channel to promote non-turbulent air flow entering the work chamber at the selected location or locations.

Machine (1) for distributing a product stored in a container (30) comprising a storage zone (2) delimiting locations (4) for housing a container (30), a metering station (5) delimiting a chamber (6) housing a support (7) for accepting a collecting vessel (33), this support (7) being positioned vertically in line with an opening (8) providing access to the chamber (6), which opening is arranged in an upper part (61) of the chamber (6), the machine (1) further comprising a system (10) for emptying each location (4) for housing a container (30) through the opening (8) providing access to the chamber (6), and a unit (14) for controlling the machine (1). The metering station (5) comprises a sensor (13) for detecting the presence of a collecting vessel (33) inside said chamber (6). The control unit (14) is configured to operate the machine (1) on the basis of data supplied by said sensor (13), and the metering station (5) is equipped with a circuit (15) for the circulation of gaseous fluid providing communication between the chamber (6) and the outside of said chamber (6) through a forced circulation of air.

The disclosure provides a multi-function ductless enclosure apparatus. Its main purpose is to be used as a paint spray booth to capture excess paint, pass it through filters with the use of a fan and then exhaust the ensuing clean air out, back into the room air. This booth is foldable and light weight and can be moved to a different location in minutes. It can also be transformed to serve many other applications with the use of a few accessories thereby saving the end user from having to have several booths (saving counter space) and also saving him from having to spend a lot of money buying many booths for different applications.

The disclosure provides a multi-function ductless enclosure apparatus. Its main purpose is to be used as a paint spray booth to capture excess paint, pass it through filters with the use of a fan and then exhaust the ensuing clean air out, back into the room air. This booth is foldable and light weight and can be moved to a different location in minutes. It can also be transformed to serve many other applications with the use of a few accessories thereby saving the end user from having to have several booths (saving counter space) and also saving him from having to spend a lot of money buying many booths for different applications.

The invention relates to a method for ground-working at a bottom of a body of water and a cleaning device for cleaning an underwater ground-working apparatus. The cleaning device has an enclosing body which extends substantially from a bottom of a body of water to above the water surface and enclosing an inner space, along which the ground-working apparatus can be moved, and a separating device, through which in the enclosing body an upper portion of the inner space can be separated off to form a cleaning area, in which the ground-working apparatus can be received and soil and contamination cleaned from it.

The wafer processing system includes a rotatable wafer support member for supporting a wafer and a plurality of collections trays disposed about a peripheral edge of the wafer support member. The collection trays are arranged in a stacked configuration, each collection tray having an inner wall portion and an outer wall portion that converge to define a trough section for collecting fluid. The system includes a chamber exhaust outlet that is formed in the housing for venting gas from the interior of the housing outside of the collection trays and a chemical exhaust outlet that is formed in the housing for venting gas that flows through the collection chamber to the chemical exhaust outlet. The chemical exhaust outlet is fluidly isolated from the chamber exhaust outlet.

The wafer processing system includes a rotatable wafer support member for supporting a wafer and a plurality of collections trays disposed about a peripheral edge of the wafer support member. The collection trays are arranged in a stacked configuration, each collection tray having an inner wall portion and an outer wall portion that converge to define a trough section for collecting fluid. The system includes a chamber exhaust outlet that is formed in the housing for venting gas from the interior of the housing outside of the collection trays and a chemical exhaust outlet that is formed in the housing for venting gas that flows through the collection chamber to the chemical exhaust outlet. The chemical exhaust outlet is fluidly isolated from the chamber exhaust outlet.

The invention relates to an apparatus (2) for mixing powdery baking ingredients with water. The apparatus (2) comprises a mixing chamber (4) which is inclined at a gradient and is preferably vertical, which has in an upper head region (6) at least one opening (8) for powdery baking ingredients falling into the mixing chamber (4) and in which there is arranged at least one nozzle (10) from which water (12) is ejected at a pressure of at least 30 bar from at least one nozzle opening (14). The nozzle opening (14) is directed at a mechanical obstruction (16) within the mixing chamber (4). Water (12) spraying out of the nozzle opening (14), together with the supplied baking ingredients, impacts the obstruction (16) in an impact region (20). Below the mixing chamber (4) there is arranged a container (24) which is provided with a cover (22) and which is connected, in a dough-conveying manner, to a discharge opening (26) of the mixing chamber (4). The apparatus has a suction device (32) for baking ingredient dust from the container (24), which has a suction opening (34) on the container (24), an inlet opening (36) into the mixing chamber (4) and a recycling duct (38) that connects the suction opening (34) to the inlet opening (36). Thus, the suction opening (34) is arranged in the head region (40) of the container (24) and the inlet opening (36) is arranged above the impact region (20) in the mixing chamber (4).

An alien substance removing apparatus according to one embodiment of the present invention may comprise: a hood unit provided adjacent to an electrical steel sheet and for collecting an alien substance generated in the electrical steel sheet by laser irradiation; and a scraping unit coupled to the hood unit and scraping and removing the alien substance attached to one surface of the hood unit facing the electrical steel sheet.