Metal chimney assembly

Details Metal chimney assembly Metal chimney assembly

1986-12-22

1988-11-01

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Insulated

2851331, 285419, F16L 3900

Patent

active

047814020

ABSTRACT:
A metal chimney assembly with floating casing walls supported by expansion clips that allow differential expansion longitudinally and radially of banded together chimney wall sections. The clips are attached to interior flue walls and extend outwardly for engagements into retainers on inner circumferences of exterior casing walls and adjacent thereagainst for holding the casing walls in a spaced relationship with the flue walls during expansion and contraction of the chimney wall sections.

REFERENCES:
patent: 2650112 (1953-08-01), Kinkead
patent: 3226135 (1965-12-01), Epstein
patent: 3872780 (1975-03-01), Zanias
patent: 3902744 (1975-09-01), Stone
patent: 4029344 (1977-06-01), Stone
patent: 4184689 (1980-01-01), Brodell et al.
patent: 4387903 (1983-06-01), Smith
patent: 4666189 (1987-05-01), Taylor et al.

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