Patent ID: 7143891

Claim:
A vibrating spiral conveyor comprising at least one driving device, a useful mass and a counter mass which can be brought into a mutually oppositely oscillating rotational vibrating movement about a central axis of rotation by said at least one driving device, the useful mass and the counter mass being mounted so that they can be moved with respect to one another over spring arrangements which are distributed about an axis of rotation, a portion of the useful mass being a pot which is disposed detachably and exchangeably, the moments of inertia (M N , M G ) of the useful mass and of the counter mass being in a defined ratio to one another, the pot, which can be mounted exchangeably, being designed so that the moment of inertia (M N ) of the useful mass and, with that, the ratio of the moments of inertia (M N , M G ) remain essentially unchanged.