Heating assembly for a heat treating furnace

Details Heating assembly for a heat treating furnace Heating assembly for a heat treating furnace

1977-12-23

1979-01-16

Envall, Jr., R. N.

Electrical resistors

Incased, embedded, or housed

Element in insulation with outer metallic sheath

338234, H05B 362, F27D 1102

Patent

active

041350537

ABSTRACT:
Graphite heating rods are disposed within a radiant tube which contains nitrogen under pressure to prevent oxidation of the rods. The pressure in the tube is sensed and nitrogen is admitted into or exhausted from the tube depending upon whether the pressure drops below or rises above a safe range. Only as much nitrogen is introduced into the tube as is necessary to replenish that which might be lost through normal leakage and thus only a comparatively small quantity of nitrogen is required to protect the graphite rods.

REFERENCES:
patent: 2320172 (1943-05-01), Brooke et al.
patent: 3053919 (1962-09-01), Poole et al.

Affiliated with

Also associated with

Rating

Heating assembly for a heat treating furnace does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heating assembly for a heat treating furnace, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating assembly for a heat treating furnace will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-652616