An installation for impregnating a porous substrate by transfer of powder, including an area for storing the powder, and an endless conveyor capable of being moved, which includes an external surface containing cavities. The external surface of the conveyor delimits an edge of the storage area to fill said cavities with the powder. The installation comprises a positioner for holding the porous substrate in contact with a fraction of the conveyor length, to seal cavities containing the powder. A drive device enabling to move the conveyor and the porous substrate, and means for displacing the powder are arranged opposite said fraction of the conveyor length, to at least partly displace a portion of the powder across the porous substrate.

The invention is a weighing and mixing system for the preparation of mixtures of components required by processing machines for the manufacture of plastic products. In particular the invention is suitable for the preparation of weighed mixtures comprised of at least two different masterbatches in order to obtain the color shade desired for a specific plastic product.

The invention is a weighing and mixing system for the preparation of mixtures of components required by processing machines for the manufacture of plastic products. In particular the invention is suitable for the preparation of weighed mixtures comprised of at least two different masterbatches in order to obtain the color shade desired for a specific plastic product.

A device is provided for layered manufacture of at least a three-dimensional product by an additive manufacturing technique based on a powder. The invention therefore relates to a device for the layered manufacturer of a product based on a powder, in particular a metal powder. This device is fitted with a build chamber with a vertically movable build platform on which said product is manufactured and contains a powder dispenser for application of the successive powder layers on the build platform in a horizontal build surface. The powder dispenser can be moved back and forth over the build surface along a horizontal dispensing direction in order to apply said powder layers. Moreover, the device contains a hopper that must contain said powder in order to supply powder to the powder dispenser. This hopper has a bottom with a dosing opening that lets out into the build chamber and that works in combination with a dosing valve. More specifically, the dosing valve enables a measured quantity of powder to flow out of the hopper.

The invention relates to a device (1) for supplying at least one molding device (2) with a polymerizable mixture of at least two reactants. According to the invention, said supply device comprises: a buffer tank (10) suitable for receiving said polymerizable mixture via an inlet (101) of said buffer tank, a supply circuit (11), looped with said buffer tank, to convey the polymerizable mixture to an inlet (110) of said at least one molding device and including, beyond said inlet of the molding device, a return pipe (115) connected to the inlet of the buffer tank for sending a portion of the polymerizable mixture from said return pipe, and a filling pipe (42) of said buffer tank, connected to said inlet of said buffer tank, separate from the return pipe, wherein said buffer tank is also suitable for receiving said polymerizable mixture or at least one of said reactants from said filling pipe.

The invention relates to a device (1) for supplying at least one molding device (2) with a polymerizable mixture of at least two reactants. According to the invention, said supply device comprises: a buffer tank (10) suitable for receiving said polymerizable mixture via an inlet (101) of said buffer tank, a supply circuit (11), looped with said buffer tank, to convey the polymerizable mixture to an inlet (110) of said at least one molding device and including, beyond said inlet of the molding device, a return pipe (115) connected to the inlet of the buffer tank for sending a portion of the polymerizable mixture from said return pipe, and a filling pipe (42) of said buffer tank, connected to said inlet of said buffer tank, separate from the return pipe, wherein said buffer tank is also suitable for receiving said polymerizable mixture or at least one of said reactants from said filling pipe.

According to examples, an apparatus may include a controller to identify a property of particulate material contained in a container and to determine, based upon the identified property of the particulate material, a parameter of a supply of gas fed into a conditioning assembly to condition the particulate material contained in the container. The controller may further control a mechanism to supply the gas at the determined parameter into the conditioning assembly.

Method and apparatus for drying granular resin material by drawing vacuum over heating resin material in a vessel, while periodically purging the vessel with the material therein with dry air and bathing the vacuum dried material with dry air until furnished to a processing machine.

The invention relates to a feeding apparatus for feeding pasty masses, in particular silicone, to an injection molding machine, having a pressing cylinder which receives the pasty mass, and a pressing plunger which is arranged axially in said pressing cylinder and presses the pasty mass out of a squeezing nozzle of the pressing cylinder. It is an object of the invention to avoid operational interruptions for cleaning work in the case of a feeding apparatus of this type and to avoid material losses within the feeding apparatus in the case of the successive use of different pasty masses. In order to achieve said object, the invention proposes that the pressing cylinder is configured as a cartridge (3) which contains the pasty mass, consists of a polymer, and can be inserted exchangeably into a supporting housing (2) which supports the cartridge on all sides and is connected to an axial actuating drive (5) for the pressing plunger (3d) which is situated in the cartridge.

The invention relates to a feeding apparatus for feeding pasty masses, in particular silicone, to an injection molding machine, having a pressing cylinder which receives the pasty mass, and a pressing plunger which is arranged axially in said pressing cylinder and presses the pasty mass out of a squeezing nozzle of the pressing cylinder. It is an object of the invention to avoid operational interruptions for cleaning work in the case of a feeding apparatus of this type and to avoid material losses within the feeding apparatus in the case of the successive use of different pasty masses. In order to achieve said object, the invention proposes that the pressing cylinder is configured as a cartridge (3) which contains the pasty mass, consists of a polymer, and can be inserted exchangeably into a supporting housing (2) which supports the cartridge on all sides and is connected to an axial actuating drive (5) for the pressing plunger (3d) which is situated in the cartridge.