Expansion and length adjustment joint

Details Expansion and length adjustment joint Expansion and length adjustment joint

1986-12-22

1988-01-19

Arola, Dave W.

Pipe joints or couplings

With casing, lining or protector

Insulated

2851331, 285302, 285373, 285346, F16L 3900

Patent

active

047201258

ABSTRACT:
An expansion and length adjustment joint for use with a double walled metal chimney, the chimney having an inner flue wall and an outer casing wall, the adjustment joint having an inner sliding sleeve with a flange at one end thereof. An upper flue wall connecting band is sealingly disposed around the inner sliding sleeve flange and a flange of the inner flue wall. A gasket retaining collar is secured against the inner sliding sleeve, thus retaining a flue gas seal therealong with thermal expansion.

REFERENCES:
patent: 1824422 (1931-09-01), Badger
patent: 2850264 (1958-09-01), Grable
patent: 3186737 (1965-06-01), Brundage
patent: 3208539 (1965-09-01), Henderson
patent: 3427051 (1969-02-01), White et al.
patent: 3544135 (1970-12-01), Hoerrner
patent: 3583730 (1971-06-01), Kozlowski
patent: 3902744 (1975-09-01), Stone
patent: 4029343 (1977-06-01), Stone

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