Conductor-in-conduit temperature limited heaters

Details Conductor-in-conduit temperature limited heaters Conductor-in-conduit temperature limited heaters

2006-10-17

2006-10-17

Thompson, Kenneth (Department: 3672)

Wells

Processes

Heating, cooling or insulating

C166S060000, C392S301000

Reexamination Certificate

active

07121341

ABSTRACT:
A heater may include an electrical conductor. Applying alternating current to the electrical conductor may generate resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a non-ferromagnetic material. The heater may provide a reduced amount of heat above or near a selected temperature. A conduit may at least partially surround the electrical conductor. A centralizer may maintain a separation distance between the electrical conductor and the conduit.

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