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.
Claims2
Apparatus for sealing unit for sealing objects traveling in a predetermined workflow direction comprising:
- a housing;
- a multiple head inductive sealing unit connected to the housing, the multiple head sealing unit including at least two ferrite cores;
- each ferrite core structured and arranged to form a channel-shaped core having two open ends arranged perpendicular to the workflow direction;
- at least one conductive coil disposed proximate to each ferrite core structured and arranged to direct an electromagnetic field towards the object to be sealed;
- at least one intake fan disposed in the housing;
- at least one outtake fan disposed in the housing;
- each of the ferrite cores having a plurality of openings therein;
- and
- the at least one intake fan and the at least one outtake fan structured and arranged within the housing to cooperatively circulate a cooling gas through the plurality of core openings within the at least two ferrite cores.
A multiple head induction sealing unit comprising:
- a mounting plate;
- at least two channel-shaped ferrite cores mounted on the mounting plate;
- each of the channel-shaped ferrite cores having a horizontal section, two wall sections and two open ends;
- each of the channel-shaped ferrite core structured and arranged so that the wall sections perpendicularly intersect a workflow direction;
- wherein
- the mounting plate has a plurality of plate openings therethrough;
- each of the at least two ferrite cores has a plurality of core openings therethrough and is mounted to the mounting plate such that the plurality of plate openings and the core openings coincide with each other to allow a cooling gas to flow therethrough;
- and
- a litz wire coil is disposed proximate to each of the at least two ferrite cores structured and is arranged to direct an electromagnetic field towards an object to be heated.
Dependencies are inferred from the claim text.