Sealing device for producing sealed packages of a pourable food product

摘要

The sealing device (1) has a supporting frame (6); at least a first and a second jaw (12,13) opposite each other and movable cyclically with respect to the frame (6) and along part of the path (A); sealing means (29) carried by the first jaw (12) to seal the tube (3); and electromagnetic power means (50) for supplying electric energy to the sealing means (29); the power means (50) having at least one primary winding (56) fixed to the frame (6) laterally with respect to the path (A) and connectable to an electric energy source, and a secondary winding (63) carried by the first jaw (12), powering the sealing means (29), and receiving electric energy by electromagnetic induction from the primary winding (56) as the first jaw (12) travels past the primary winding (56).