Chimney seal

Details Chimney seal Chimney seal

1980-10-10

1983-06-14

Makay, Albert J.

Furnaces

With fuel treatment means

Preliminary refuse treatment means

110184, F23J 1100

Patent

active

043876285

ABSTRACT:
A chimney having a tubular inner liner and a tubular outer wall is provided with a seal for sealingly closing the upper end of the space between the liner and outer wall notwithstanding the radial and longitudinal displacement between the liner and outer wall. The seal includes a plurality of slidingly engageable seal elements which permit such relative movement between the liner and outer wall while maintaining an effective seal therebetween at all times. One of the seal elements may be fixedly mounted to one of the liner or outer wall and the other of the seal elements may be movably associated with the other of the liner and outer wall. An annular rain hood is provided above the seal in the illustrated embodiment. In one form, the seal is disposed in overlying relationship to the space between the liner and outer wall and in another embodiment, the seal is disposed radially outwardly thereof.

REFERENCES:
patent: 3631789 (1972-01-01), Kilvey
patent: 3669042 (1972-06-01), Lawrence
patent: 3752091 (1973-08-01), Lawrence
patent: 3822636 (1974-07-01), Chadwick
patent: 4111107 (1978-09-01), Engleke
patent: 4191099 (1980-03-01), Strahl

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