Abstract: An improved fuel burning combustion apparatus and method of combusting a fuel-air mixture wherein the apparatus includes a burner housing having a plurality of angularly adjoined flat wall panels to define a burner chamber of preselected geometric configuration having tangentially disposed combustion air inlets and air turbulence forming areas extending longitudinally along the angularly adjoined flat wall panels to provide a thorough mixing of air and fuel introduced into the burner chamber.

Abstract: An improved air heating apparatus and method of heating an air stream wherein the heating arrangement includes a heater housing with a combustion drum having a burner at one end thereof, the drum being disposed in spaced relation in the housing to extend longitudinally along the length thereof, a heat exchanger longitudinally extending in the space between the combustion drum and housing to receive combustion products from the combustion drum, an air stream blower positioned to pass an air stream over the heat exchanger in the space between housing and drum and to pass air from opposed ends of the combustion drum including the burner at one end to promote an extended burner flame substantially along the combustion drum length.

Abstract: An improved steady state fuel burner assembly and method of operation for a space heater wherein fuel and combustion air are initially ignited within a burner assembly with the resulting higher pressure in the burner assembly causing throttling of combustion air into the burner assembly until a preselected lower pressure is reached compatible with steady state combustion through exhaustion of initially combusted gases.

Abstract: Apparatus for controlling bleed gas in the bleed gas system of a compressor for gas turbine engine wherein a valve disposed in the bleed conduit of a compressor is moved from closed to open position in a selectively controlled manner in accordance with a preselected bleed gas pressure sensed in the bleed gas system of the compressor.

Abstract: A fuel supply system for a fuel spray combustor nozzle of a portable heater including a pump connected to the fuel spray combustor nozzle on the high pressure side thereof and alternatively connectable on the low pressure side to an on-board fuel chamber storage means or to an off-board storage supply through an actuable valve and solenoid system connected by fluid piping, valves and fittings extending between the on-board nozzle, pump, and storage chambers and toward off-board supply.

Abstract: A method and apparatus for preparing a decontamination fluid including passing the fluid from a supply source to a low pressurization zone prior to heating the fluid, heating at least a portion of the low pressurized fluid and passing the heated fluid to a high pressurization zone prior to introducing the heated fluid to the decontamination zone.

Abstract: An improved arrangement for a pulse jet engine assembly wherein pulsations of the engine are utilized to operate a motive source for a fuel pump which pumps fuel from a fuel supply source to the engine, the entire pulse jet engine assembly being internally self-sufficient after initial starting operation.

Abstract: A fuel burner assembly for providing a stable, non-pulsating flame wall proximate to a burner duct outlet thereof including structure which causes a combustion air stream to flow radially outwardly and then inwardly across a fuel supply outlet and spaced igniter centrally positioned adjacent the duct outlet, the stream then being divided into three flow paths, one path being axial, another being centrally rotated and a third being annularly compacted to stabilize the produced flame wall proximate the duct outlet.

Abstract: An indirect fired air heater of the portable type and method of operating the same wherein the combustion gas flow is reversed in a combustion drum and passed through a heat exchanger between the drum and the outer casing, the heat exchanger being supported from the outer casing with the combustion drum floatingly supported therebetween.

Abstract: An improved fuel container support system for a combustion engine including an engine support frame having a moveable fuel container support shelf mounted thereon, the shelf being structured to move from a non-operating to an operational position to hold a fuel container at an angle to the horizontal for efficient fuel flow operation during engine running with the container positioned away from the engine during such running.

Abstract: Portable air heating apparatus for supplying heated air to a plenum chamber including a partitioned housing with at least two chambers, one of which is sound-conditioned to contain a power member, the housing having therein a blower and radiator connected to the sound-conditioned power member, a heat exchanger communicating with the blower, heated air passing from the heat exchanger in the housing to the plenum chamber and recirculated therefrom back to the housing over the radiator before returning to the blower.

Abstract: A flow control apparatus for a protective shelter including valve means to allow preselected maximum and minimum amounts of air flow into the shelter depending upon ambient contaminant concentrations.

Abstract: A method and apparatus for rapidly chilling a cool pack associated with a refrigeration system wherein slush-like medium is introduced into the pack in a first step and frozen to a substantially solid state in a second step.

Abstract: A method and apparatus for rapidly chilling a cool pack associated with a refrigeration system wherein slush-like medium is introduced into the pack in a first step and frozen to a substantially solid state in a second step.

Abstract: A method and arrangement for circulating condenser cooling air through the condenser section of an air conditioner used in dusty and windy environments. The condenser section includes an air cooled fin-tube type condenser secured across a straight duct extending vertically through the horizontal housing of the air conditioner. During operation of the air conditioner, an axial flow fan mounted within the duct draws ambient air into the duct through an opening in the bottom of the housing in a direction generally perpendicular to the natural wind flow in the vicinity of the air conditioner and directs the air through the condenser whereafter it is discharged to atmosphere.