Abstract: A coupling assembly for connecting a flue gas pipe with an inlet duct of a chimney includes a tubular compensator having a first end secured to the flue gas pipe and a second end oriented towards the inlet duct and having a radially projecting flange. The chimney part which surrounds the inlet duct has a planar face provided with a groove spacedly surrounding the inlet duct. An endless bead forming part of the flange projects from the frontal face thereof and is received in the groove. There are further provided screw connections anchored in the chimney externally of the compensator flange and pressing members operatively connected to the screw connections and being pressed thereby against the flange to clamp the flange against the planar chimney face. The pressing members extend over and across the bead. A rubber-elastic adhesive layer is situated between the flange and the planar face of the chimney and is glued to the flange, the bead, the planar face and the groove.

Abstract: A seal assembly for an articulated coupling of two pipes has a first flange adapted for affixation to the end of a first pipe, a first slide face on the first flange, and a second flange adapted for affixation to the end of a second pipe. The second flange has an annular part including an engagement face oriented towards the first flange and a tubular nipple projecting towards the first flange. The seal assembly further has a sheet metal ring surrounding the tubular nipple and having a generally U-shaped cross section for defining a ring cavity open towards the engagement face. A second slide face, provided on the outer surface of an outer wall portion of the sheet metal ring, is surrounded by, and is in a sliding contact with, the first slide face. An annular filler mass of a sealing material is received in the cavity. The filler mass extends axially beyond the sheet metal ring and is in contact with the engagement face of the annular part of the second flange.