Patent ID: 7107737

Claim:
A packing machine for producing a package ( 2 ) by folding a sheet ( 6 ) of packing material about a respective article ( 3 ); the packing machine ( 1 ) comprising a conveyor ( 21 ) having at least one seat ( 22 ), which feeds the package ( 2 ) along a packing path, and has at least one electrically heatable activating member ( 35 , 36 , 37 ) for applying heat to a portion of the package ( 2 ); the packing machine ( 1 ) being characterized by comprising a number of fixed first magnetic cores ( 38 ), each having a respective first coil ( 39 ) and positioned parallel to the conveyor ( 21 ) along a portion of the packing path; the seat ( 22 ) comprising a respective movable second magnetic core ( 40 ), which has a second coil ( 41 ) connected electrically to the activating member ( 35 , 36 , 37 ), and is positioned facing and coupled magnetically to the fixed first magnetic cores ( 38 ); a power supply device ( 42 ) being provided, which, in use, supplies the first coils with a first electric current (C 1 ) to induce flow of a corresponding second electric current (C 2 ) through the second coil ( 41 ).