Insulated chimney assembly

Details Insulated chimney assembly Insulated chimney assembly

1983-04-15

1985-03-05

Wayner, William E.

Stoves and furnaces

Stoves

Cooking

126307R, 110184, F23L 1702

Patent

active

045023700

ABSTRACT:
Linear sections (101) of a chimney assembly (100) each include concentric outer, intermediate and inner sleeves (102, 104, 106). The inner sleeve (106) is interconnected at its lower portion (140) to the intermediate sleeve (104) through spaced apart U-shaped clips (142), while the upper portion of the inner sleeve (106) is allowed to float. The inner sleeve (106) is thus spaced apart from the intermediate sleeve (104) with an insulative air gap (136) therebetween. The air gap (136) and the particular connective arrangement of the inner sleeve (106) to the intermediate sleeve (104) allows for both linear and radial thermal expansion of the inner sleeve (106) caused by high temperature waste flue gases, and also facilitates engagement of adjoining linear sections (101).

REFERENCES:
patent: 2679867 (1954-06-01), Epstein
patent: 2978261 (1961-04-01), Epstein
patent: 2980448 (1961-04-01), Holben
patent: 3055417 (1962-09-01), Reed
patent: 3769923 (1973-11-01), Lawrence
patent: 3842721 (1974-10-01), Cardif
patent: 3872780 (1975-03-01), Zanias

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