Patent ID: 7581635
Filing Date: 2009-09-01
Classification: B65G

Abstract:
1. Method for changing the pitch between discrete entities conveyed in succession between a device for feeding said entities at an initial spacing pitch provided between two entities fed in succession and a device for receiving said entities at a final pitch substantially greater than the initial pitch, wherein the method comprises the steps of: transporting the discrete entities by a variable pitch feed screw device configured to receive said entities downstream of said device for feeding said entities, said variable pitch feed screw device comprising a screw, wherein the screw comprises a groove in which said entities are capable of being housed and displaced, so that the pitch between two entities received by said screw is increased downstream of said screw as far as an intermediate pitch; transferring and gripping the entities at an intermediate pitch by a wheel for changing the pitch, configured to transfer said entities into said receiving device at said final pitch.