Electric heating element that includes a radiant tube

Details Electric heating element that includes a radiant tube Electric heating element that includes a radiant tube

2004-06-29

2009-08-18

Fuqua, Shawntina (Department: 3742)

Electric heating

Heating devices

With heating unit structure

C219S553000, C219S602000, C219S538000, C219S539000, C219S408000, C219S523000, C219S536000, C219S544000, C219S541000, C219S542000, C219S202000, C219S550000, C219S531000, C219S530000, C392S480000, C392S407000, C392S497000, C392S488000, C392S503000, C338S237000, C338S221000, C338S229000, C338S234000, C338S235000, C373S130000, C373S132000, C373S133000, C373S134000

Reexamination Certificate

active

07576306

ABSTRACT:
An electric heating element with radiant tube comprising a radiation pipe (1) and an electric heating element (2, 3) contained in said pipe, wherein the heating element has legs that run to and fro in the pipe, and wherein the heating element is connected at one end of the pipe close to a furnace wall with electric power outlets through which electric current is fed to the element, wherein the element is supported in the pipe by ceramic discs (9) that are provided with through-penetrating holes through which the legs of the elements extend, and wherein two elements (2, 3) are disposed sequentially in said radiation pipe along its long axis.

REFERENCES:
patent: 2372212 (1945-03-01), Lewin
patent: 4179603 (1979-12-01), Zeigler et al.

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