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US 7,661,248 B2Granted
Device for dosing and forming disks for pods containing a product for infusion
AssigneeI.M.A. Industria Macchine Automatiche S.P.A.
InventorRoberto Conti
Life of this patent
Estimating the term…
Abstract
A device for dosing and forming pods (1) containing a product for infusion and comprising a piece of filter material containing a dose of the product for infusion. The device comprises: a station (2) for feeding the product into at least one forming impression (3) defining a single dose of the product and made in means (4) for forming a respective compressed disk (5) of the infusion product and releasing the compressed disk (5) from the impression (3) in the filter material to form the pod (1).
Claims11
A device for dosing and forming disks for pods containing a product for infusion;
- the pods being of the type comprising a piece of filter material containing a dose of the product for infusion in the form of a disk, wherein the device comprises at least the following:
- a station for feeding the infusion product;
- a revolving drum equipped with a plurality of pistons arranged radially on a peripheral surface of the revolving drum and designed to form a disk of the infusion product and to release the disk in the filter material, each piston being able to slide along a respective axis and having a hollow head forming an impression designed to receive a dose of the infusion product fed by the feed station, the impression being moved by the revolving drum along a circular path;
- and
- a rotational drive means acting directly on each piston and designed to continuously revolve each piston about its axis due to revolution of the drum;
- wherein the rotational drive means comprises a fixed ring gear mounted inside the revolving drum and meshed with corresponding gear wheels keyed to the respective cylinder of each piston so that the pistons revolve continuously as the gear wheels engage the fixed ring gear while the pistons move round the circular path, thus tamping the disk and preventing it from sticking inside the head of the piston while enabling the disk to be detached completely when it is deposited on the filter material.
3 more elements
A device for dosing and forming disks for pods containing a product for infusion;
- the pods being of the type comprising a piece of filter material containing a dose of the product for infusion in the form of a disk, wherein the device comprises at least the following:
- a station for feeding the infusion product;
- a revolving drum equipped with a plurality of pistons arranged radially on a peripheral surface of the revolving drum and designed to form a disk of the infusion product and to release the disk in the filter material, each piston being slidably mounted on the revolving drum for sliding along a respective axis and having a hollow head forming an impression designed to receive a dose of the infusion product fed by the feed station;
- wherein there is an arc-shaped wall round the outer surface of the revolving drum, said arc-shaped wall defining a tamping surface opposite to the impression of the pistons in a part of the circular path;
- and
- a fixed ring gear;
- wherein each piston is movable along the respective axis towards said arc-shaped wall for compressing the infusion product included into the impressions against said tamping surface, and
- wherein the fixed ring gear is mounted inside the revolving drum and meshed with corresponding gear wheels keyed to the respective cylinder of each piston so that the pistons revolve continuously as the gear wheels directly engage the fixed ring gear while the pistons move round the circular path due to revolution of the drum, thus tamping the disk and preventing it from sticking inside the head of the piston while enabling the disk to be detached completely when it is deposited on the filter material.
5 more elements
A device for dosing and forming disks for pods containing a product for infusion;
- the pods being of the type comprising a piece of filter material containing a dose of the product for infusion in the form of a disk, wherein the device comprises at least the following:
- a station for feeding the infusion product;
- a revolving drum equipped with a plurality of pistons arranged radially on a peripheral surface of the revolving drum and designed to form a disk of the infusion product and to release the disk in the filter material, each piston being able to slide along a respective axis and having a hollow head forming an impression designed to receive a dose of the infusion product fed by the feed station;
- wherein each piston is rotatably mounted on the revolving drum for continuously rotating about said respective axis;
- wherein rotational drive means, acting on each piston, are located on the drum and comprises a fixed ring gear mounted inside the drum and directly meshed with corresponding gear wheels keyed to a respective cylinder of each piston so that the pistons revolve continuously as they move round the circular path due to revolution of the drum.
2 more elements
Dependencies are inferred from the claim text.