Heat treating furnace with heating element hangers and radiation shield spacers
Patent
·
OSTI ID:5340747
A heat treating furnace is described comprising wall means defining a work chamber, electric resistance heating elements disposed inside of the chamber for heating workpieces therein, and means for attaching the heating elements to the wall means. The furnace is characterized in that each of the attaching means comprises a threaded nut having an outer end bonded rigidly to the inner side of the wall means, the wall means being imperforate in that area of the wall means directly opposing the entirety of the outer side of the nut, and elongated hanger rod having an outer end portion threaded into the nut and terminating short of the outer side of the wall means, and means for connecting a heating element to and insulating the heating element electrically from the inner end portion of the hanger rod. The wall means consists of an innermost radiation shield spaced outwardly from the heating element, the connecting and insulating means comprising a ceramic tube having an outer end abutting the shield and having an inner end portion extending through a hole in the heating element. The inner end portion of the hanger rod also extends through the hole, the ceramic tube being telescoped over the hanger rod and insulating the inner end portion of the hanger rod from the heating element, a ceramic washer telescoped over the inner end portion of the ceramic tub and abutting the inner side of the heating element adjacent the hole, a retaining washer telescoped over the inner end portion of the hanger rod and covering the inner side of the ceramic washer. The retaining washer is insulated from the heating element by the ceramic washer, and means for captivating the retaining washer on the inner end portion of the hanger rod.
- Assignee:
- Abar Ipsen Industries, Feasterville, PA
- Patent Number(s):
- US 4612651
- OSTI ID:
- 5340747
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electric heat treating furnace with quickly serviceable heating assembly components
Surface casing stabilizer and hanger and method of employing the same
Single trip casing hanger/packoff running tool
Patent
·
Tue Aug 26 00:00:00 EDT 1986
·
OSTI ID:5184512
Surface casing stabilizer and hanger and method of employing the same
Patent
·
Tue Jul 21 00:00:00 EDT 1981
·
OSTI ID:5693428
Single trip casing hanger/packoff running tool
Patent
·
Mon Dec 02 23:00:00 EST 1991
·
OSTI ID:5469276