Patent ID: 7661248

Claim:
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.