Abstract: An emptying device for emptying a viscous material in a bubble-free manner out of a removal opening of a cartridge involves extruding a plurality of thin strands of the material. The emptying device includes a collecting container mounted to a base frame and a cartridge carrier that moves in a pressing direction towards the base frame. A cartridge plunger is adapted to push a pusher of the cartridge in the pressing direction. A discharge drive drives the cartridge plunger. A distributing head divides the viscous material exiting the removal opening into the plurality of thin strands. The distributing head is fastened to the removal opening and is adapted to move axially in the collecting container in the pressing direction. A vacuum housing connects in an air-tight manner to the collecting container and to an outer circumference of the cartridge even while the cartridge moves relative to the first vacuum housing.

Abstract: A novel hose pump for viscous material includes a hose, a variator, a variator drive, a controller, a pressure-tight housing, and a negative pressure connection. The hose has an elastic circumferential wall and an inner cross-sectional area and is open at both ends. The hose includes a pressure-tight inlet opening and a pressure-tight outlet opening. A portion of the hose is enclosed within the pressure-tight housing. The negative pressure connection is coupled to the pressure-tight housing. The variator is adapted to compress the hose and thereby to reduce the inner cross-sectional area of the hose. The variator drive causes the variator to compress the hose at controlled locations along the hose. The controller controls the variator drive. The variator rotates and compresses the hose where the variator contacts the hose. Alternatively, multiple variators form pinch valves at fixed locations along the hose and compress the hose independently of one another.

Abstract: In order to prevent the material (52) from being pressed through the press plate seal between press plate (2) and surrounding barrel (50) by means of a press plate (2) when emptying a barrel (50) in which viscous material (52) is supplied, a two-stage construction is used in accordance with the invention: A press cylinder (22) is connected to the rear side of the press plate (2), in which in turn a conveying piston (24) is guided in a sealing manner, which in turn has a smaller end face than the press plate (2). In addition, non-return valves (19) are arranged in the press plate (2) in the region radially inside the press cylinder (22), which allow the material (52) to flow only in the direction of the conveying piston (24), but not vice versa, when the press plate (2) is pressed in the direction to the bottom (50a) of the barrel (50). After the press plate (2) has come to a standstill, the conveying piston (24) can thus be guided in the direction of the bottom of the press cylinder (22), i.e.

Abstract: In order to prevent the material (52) from being pressed through the press plate seal between press plate (2) and surrounding barrel (50) by means of a press plate (2) when emptying a barrel (50) in which viscous material (52) is supplied, a two-stage construction is used in accordance with the invention: A press cylinder (22) is connected to the rear side of the press plate (2), in which in turn a conveying piston (24) is guided in a sealing manner, which in turn has a smaller end face than the press plate (2). In addition, non-return valves (19) are arranged in the press plate (2) in the region radially inside the press cylinder (22), which allow the material (52) to flow only in the direction of the conveying piston (24), but not vice versa, when the press plate (2) is pressed in the direction to the bottom (50a) of the barrel (50). After the press plate (2) has come to a standstill, the conveying piston (24) can thus be guided in the direction of the bottom of the press cylinder (22), i.e.

Abstract: For bubble free emptying of pasteous substances from drum-shaped containers these are pumped out through a drum follower plate placed onto the paste. In a refinement, the drum follower plate is provided hollow with a lower grid plate and before the beginning of the pumping out process through evacuation of the hollow intermediary space air, possibly present under the drum follower plate, is sucked from there into the intermediary space, so that the pump scooping from below the grid plate only feeds pasteous material right from the beginning.

Abstract: For bubble free emptying of pasteous substances from drum-shaped containers these are pumped out through a drum follower plate placed onto the paste. In a refinement, the drum follower plate is provided hollow with a lower grid plate and before the beginning of the pumping out process through evacuation of the hollow intermediary space air, possibly present under the drum follower plate, is sucked from there into the intermediary space, so that the pump scooping from below the grid plate only feeds pasteous material right from the beginning.