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US 2004/0104217 A1Published application
Multiple head induction sealer apparatus and method
OwnerKenneth J. Herzoginventor
Life of this patent
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Abstract
A multiple head induction sealing system includes at least two ferrite cores mounted which are channel-shaped and arranged so that the open ends of the channels are aligned either perpendicular or parallel to a workflow direction established as the objects to be heated pass beneath the unit. A litz wire coil is disposed proximate to each ferrite core which produces an electromagnetic field within the ferrite core. The ferrite cores and litz wire coil are adapted to direct the electromagnetic field toward an object to heat it.
Claims1
A multiple head induction sealing unit for sealing objects traveling in a predetermined workflow direction comprising:
- at least two ferrite cores;
- each ferrite core structured and arranged to form a channel-shaped core having a longitudinal channel, the longitudinal channel being perpendicular to the workflow direction;
- at least one conductive coil disposed inside the longitudinal channel of each ferrite core structured and arranged to direct an electromagnetic field towards an object to be heated.
Dependencies are inferred from the claim text.