Patent ID: 6362461
Filing Date: 2002-03-26
Classification: B29C,B65B,H05B

Abstract:
A sealing device for sealing at least one container having a non-circular orifice with at least one sealing washer adapted to be joined to the orifice and induction sealed thereon, the sealing device comprising:a plurality of conveyor belts constructed and arranged to move the at least one container; at least one induction loop constructed and arranged to induce a current into the at least one sealing washer, the at least one induction loop comprising a coil member selected from the group consisting of a dual coil and a pair of coils running dually, and producing a homogeneous field adapted to a shape and measurement of an upper, sealing edge of the orifice of the at least one container, and moving parallel to the movement of the conveyor belts during sealing of the washer; and wherein movement of the at least one induction loop and conveyance of the at least one container on the conveyor belts are selectively controlled so as to substantially eliminate relative movement between the at least one induction loop and the orifice of the at least one container during sealing.