Sheathed fiberglass heater wire
AssigneeZoppas Industries de Mexico S.A., de C.V.
InventorsMaurizio Francesco Pasqual, Jose Jesus Reyes Soto, Alfredo Cuevas Morales, Pierpaolo Campeol
Life of this patent
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Abstract
An apparatus is disclosed. The apparatus includes a resistive wire having a circumference. The apparatus further includes a first fiberglass layer disposed about the circumference of the resistive wire and along a length of the resistive wire. The apparatus further includes a second fiberglass layer. The apparatus further includes a third fiberglass layer, the second fiberglass layer disposed between the first fiberglass layer and the third fiberglass layer, the third fiberglass layer forming an outer layer and surrounding the second fiberglass layer.
Claims20
1-18. (canceled)
An apparatus comprising:
- a resistive wire having a circumference;
- a first fiberglass layer disposed about the circumference of the resistive wire and along a length of the resistive wire;
- a second fiberglass layer;
- a third fiberglass layer, the second fiberglass layer disposed between the first fiberglass layer and the third fiberglass layer, the third fiberglass layer forming an outer layer and surrounding the second fiberglass layer;
- a lead wire crimped onto the resistive wire, thereby reducing tangling of the resistive wire and the lead wire with one or more of the first fiberglass layer, the second fiberglass layer, and the third fiberglass layer, the lead wire configured to supply a current to the resistive wire;
- and
- a cold zone defined at least in part by a portion of the lead wire and a portion of the resistive wire, the cold zone formed by a short circuit created when one or more metal wires contact at least the portion of the resistive wire.
A method comprising:
- providing a heater wire disposed within a tube of a refrigeration system, the heater wire comprising:
- a resistive wire having a circumference;
- a first fiberglass layer disposed about the circumference of the resistive wire and along a length of the resistive wire;
- a second fiberglass layer;
- a third fiberglass layer, the second fiberglass layer disposed between the first fiberglass layer and the third fiberglass layer, the third fiberglass layer forming an outer layer and surrounding the second fiberglass layer;
- a lead wire crimped onto the resistive wire, thereby reducing tangling of the resistive wire and the lead wire with one or more of the first fiberglass layer, the second fiberglass layer, and the third fiberglass layer, the lead wire configured to supply a current to the resistive wire;
- and
- a cold zone defined at least in part by a portion of the lead wire and a portion of the resistive wire, the cold zone formed by a short circuit created when one or more metal wires contact at least the portion of the resistive wire;
- and
- providing a current through the resistive wire to heat at least a portion of the refrigeration system.
Dependencies are inferred from the claim text.