Couplings for connecting vehicle exhaust tail pipes to exhaust conduits for removing vehicle exhaust gases

A coupling assembly comprising a coupling connecting a vehicle exhaust tail pipe to an exhaust conduit for removing vehicle exhaust fumes,

• said coupling comprising a cylindrical housing having an inlet at a front end and an outlet at a rear end, said rear end being connected to the exhaust conduit,
• a bristle assembly removably mounted within the housing adjacent the front end, and removable means securing the bristle assembly in the housing,
• said bristle assembly comprising an annular retainer and a multitude of resilient bristles extending radially inwardly from the retainer towards a longitudinal axis of the housing and terminating at a position spaced from said longitudinal axis to provide a central aperture,
• said bristles projecting radially inwardly from the retainer by a distance in the range from about 4:1 to about 8:1 longer than the radial thickness of the retainer, the front end of the housing having been pushed over the vehicle exhaust tail pipe to cause the tail pipe to bend the bristles rearwardly into engagement with the tail pipe to produce an effective gas seal between the front end of the coupling and the tail pipe.