Dispersion exhauster for engines and combustion heaters

Claim 1

A dispersion exhauster for engines and combustion heaters comprising: a vertically extending exhaust pipe having a selected center line and having an outwardly flaring upper end, an insulated tube member mounted concentrically and outwardly of said exhaust pipe so as to form a passage therebetween, said tube member having a selected cross sectional area and having an inlet for cooling air in a lower portion and an open upper end spaced from said exhaust pipe and corresponding in shape to said flared end of said exhaust pipe, and an insulator cap member, said cap member having a substantially planar configuration with a lower planar surface with a surface area greater than said selected cross sectional area of said tube member, said cap member connected to said exhaust pipe in spaced relation with said lower planar surface perpendicular to said center line of said exhaust pipe, said cap member containing a sound attenuating and heat insulating material and adapted to cause exhaust gases passing from the upper end of said exhaust pipe to draw cooling air up from said passage as well as down across the cap so as to mix with the exhaust gases thereby cooling and dispersing them and camouflaging the engine or heater from infrared detection.