Waste disposal system and method

Claim 1

In a system for disposing of liquid and organic human waste material on a human conveyance having a source of motive power defined by a fuel burning engine including an exhaust system for exhausting hot gases therefrom, said engine having throttle means movable to variable positions for varying the rate of fuel flow to said engine and an intake manifold having a variable vacuum therein, said hot exhaust gases, throttle position and manifold vacuum defining variable operating conditions for moving said conveyance under variable operation conditions, sAnitary facilities on said conveyance for receiving said waste material, waste tank means for receiving said waste material from said sanitary facilities, flow means including pump means for feeding said waste material from said tank means to said exhaust system for vaporizing and burning said waste material with heat from said hot exhaust gases, and automatic control means for controlling flow of said waste material through said flow means, the improvement comprising; said control means including sensing means for sensing at least two different ones of said operating conditions which together are proportional to the rate at which said engine is consuming fuel so that waste material is fed through said flow means only when both of said two of said operating conditions are within a range which insures that said engine is consuming fuel at a rate sufficient to produce adequate hot exhaust gases for thoroughly vaporizing and burning said waste material.

Claim 3

A method for disposing of liquid and organic human waste material on a conveyance having a source of motive power defined by a fuel burning engine including an exhaust system for exhausting hot gases therefrom, throttle means movable to variable positions for varying the rate of fuel flow to said engine and an intake manifold having a variable vacuum therein, said hot exhaust gases, throttle position and manifold vacuum defining variable operating conditions for moving said conveyance under variable operating conditions, said conveyance including sanitary facilities for receiving said waste material, said sanitary facilities being connected with a waste tank for storing said waste material, said conveyance having flow means including pump means for feeding said waste material from said waste tank to said exhaust system for vaporizing and burning said waste material with heat from hot gases flowing through said exhaust system, comprising the steps of; selectively feeding combustible fuel at selectively variable rates to said engine for operating said engine, exhausting hot gases produced by combustion of fuel in said engine through said exhaust system, automatically monitoring at least two different ones of said operating conditions which together are proportional to the rate at which said engine is consuming fuel, and feeding waste material to said exhaust system only when both of said two monitored operating conditions are within a range indicating that said engine is consuming fuel at a rate sufficient to produce adequate exhaust gases for thoroughly vaporizing and burning said waste material.

Claim 4

A method for disposing of liquid and organic human waste material on a conveyance having a source of motive power defined by a fuel burning engine including an exhaust system for exhausting hot gases therefrom, throttle means movable to variable positions for varying the rate of fuel flow to said engine and an intake manifold having a variable vacuum therein, said hot exhaust gases, throttle position and manifold vacuum defining variable operating conditions for moving said conveyance under variable operating conditions, said conveyance including sanitary facilities for receiving said waste material, said sanitary facilities being connected with a waste tank for storing said waste material, said conveyance having flow means including pump means for feeding said waste material from said waste tank to said exhaust system for vaporizing and burning said waste material with heat from hot gases flowing through said exhaust system, comprising the steps of; selectively feeding combustible fuel at selectively variable rates to said engine for operating said engine, exhausting hot gases produced by combustion of fuel in said engine through said exhaust system, automatically monitoring at least two different ones of said operating conditions which together are proportional to the rate at which said engine is consuming fuel, and feeding waste material to said exhaust system only when both of said two monitored operating conditions are within a range indicating that said engine is consuming fuel at a rate sufficient to produce adequate exhaust gases for thoroughly vaporizing and burning said waste material.