Method of emptying a cartridge
AssigneeMedmix Switzerland AG
InventorsTobias BODENMÜLLER, Rico ITEN, Philipp SEILER, Christian MAJOLETH, Ralf GRÜNENFELDER, Wolfgang KITZMÜLLER
Life of this patent
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Abstract
A method of emptying a cartridge to be recycled includes providing a cartridge filled with a volume amount of a residual material to be removed from the cartridge, the cartridge comprising a solid head part having an outlet part forming an outlet, and applying a vacuum to the cartridge by a vacuum device, thereby removing at least a part of the residual material from the cartridge.
Claims37
A method of emptying a cartridge to be recycled, the method comprising:
- providing a cartridge filled with a volume amount of a residual material to be removed from the cartridge, the cartridge comprising a solid head part having an outlet part forming an outlet;
- and
- applying a vacuum to the cartridge by a vacuum device, thereby removing at least a part of the residual material from the cartridge.
A method of emptying a cartridge to be recycled, the method comprising:
- providing a cartridge filled with a volume amount of a residual material to be removed from the cartridge, the cartridge comprising a solid head part having an outlet part forming an outlet, a lower part opposite to the head part with regard to a longitudinal direction of the cartridge, and a piston moveable through the cartridge, the piston having at least one ventilating opening extending between a surface facing the head part and a surface facing the lower part;
- and
- applying a pressurized fluid through the at least one ventilating opening by a pressurized fluid device, thereby urging and removing the residual material from the cartridge.
A method of emptying a dispenser tip to be recycled, the method comprising:
- providing a dispenser tip attached to an outlet part of a cartridge, the dispenser tip being filled with a volume amount of a residual material to be removed from the dispenser tip, the cartridge comprising a solid head part having an outlet part forming an outlet and a lower part opposite to the head part with regard to a longitudinal direction of the cartridge, the cartridge further comprising a piston moveable through the cartridge;
- pulling the piston towards the lower part of the cartridge, thereby re-moving the residual material from the dispenser tip into the cartridge;
- or
- connecting an outlet of the dispenser tip to a pressurized fluid device, and applying a pressurized fluid by the pressurized fluid device through the dispenser tip, thereby urging the residual material from the dispenser tip into the cartridge.
A cartridge, comprising:
- a solid head part having an outlet part forming an outlet;
- a lower part opposite to the head part with regard to a longitudinal direction of the cartridge;
- a piston moveable through the cartridge in the longitudinal direction, the piston having a surface facing the head part and a surface facing the lower part, the piston comprising a protrusion extending from the surface facing the head part, the protrusion being aligned with the outlet and having a cross-sectional shape matching a cross sectional shape of the outlet so as to be insertable into the outlet by a movement of the piston to remove residual material from the outlet part of the cartridge.
A method of refilling an at least partially spent cartridge, the method comprising:
- providing the at least partially spent cartridge comprising a predetermined volume amount of a residual material, a solid head part having an outlet part forming an outlet and a lower part opposite to the head part with regard to a longitudinal direction of the cartridge, the cartridge further comprising a piston moveable through the cartridge in the longitudinal direction, the piston having a surface facing the head part and a surface facing the lower part;
- connecting the outlet part to a refilling system comprising a refill material;
- and
- pulling the piston towards the lower part, thereby sucking the refill material so as to provide a refilled cartridge;
- or urging the piston towards the lower part by pressing the refill material into the cartridge so as to provide the refilled cartridge.
A dispenser tip comprising:
- a mixer;
- and
- a mixer sheath, the mixer comprising a first end and a second end opposite to the first end with regard to a longitudinal axis of the dispenser tip, the mixer sheath covering the mixer in a circumferential direction and formed by a flexible or thin-walled rigid material.
The dispenser tip assembly according to 25, wherein the sup-port sleeve is releasably or non-releasably connected to the connecting part.
A hybrid piston comprising:
- a hollow rigid ring part defining a side wall of the piston that is configured to cooperate with an inner sidewall of a cartridge;
- and
- a head part defining a top surface of the piston, the head part being disposed on the ring part, the ring part and the head part being sealingly and releasably or fixedly connected to one another.
A cartridge, comprising:
- at least one chamber having a head part having an outlet part forming an outlet and a lower part opposite to the head part with regard to a longitudinal direction of the cartridge;
- a piston moveable through the cartridge in the longitudinal direction, the piston comprising at least one sealed cavity containing a viscous or fluid material;
- and
- an unsealing device configured to open the cavity such that the material of the cavity is capable of flowing into the chamber and vice versa.
Dependencies are inferred from the claim text.