Sanuvox Technologies Inc.

Gaz Metropolitan & Co., Ltd. and Partnership

Gaz Metropolitain & Co., Ltd. and Ptnr.

Brais, Martres Et Associes Inc.

Normand Brais

Stuart Engel

David Sevack

Jocelyn Dame

Benoit Despatis Paquette

Kebir Ratnani

Jacques Martres

Louis-Michel Malouin

Marc Lupien

Jean-Guy Chouinard

A room decontamination systems, controllers and methods for decontaminating a room. The room decontamination system may be a UV room decontamination system that uses UV radiation to perform a decontamination operation in the room. A controller may determine whether safe conditions for decontamination exist and initiate a decontamination operation on the basis of whether they exist. Determination of safe conditions for decontamination may be based on light actuation detection and/or sensor data, which may include presence detector data and door sensor data. Determination of safe conditions for decontamination may include a determination of whether sensors are functioning properly. The controller may also determine whether decontamination operations are required on the basis of the historical condition data, for example on the basis of whether the room has been occupied since the last decontamination operation.

Room decontamination apparatus

Room decontamination system, method and controller

A controller for an ultraviolet (UV) purification system having UV lamps includes a sensor in communication with a given UV lamp as well as a processor in communication the sensor. The sensor provides the UV light intensity rate of the UV lamp (sensed rate) and transmits this information to the processor which compares the sensed rate with a memory stored desired UV light intensity rate (desired rate). An indicator in communication with the processor indicates when the UV lamp is producing a UV light intensity below the desired rate. Current is provided to the UV lamp by a ballast. The processor includes a memory stored predetermined UV light intensity rate (predetermined rate) that is greater than the desired rate. When the sensed rate is lesser than the predetermined rate, the current provided by the ballast is increased such that the UV lamp produces a UV light intensity at least equal to the predetermined rate.

Controller for UV light purification system

An ultra-violet lamp and reflector/shield assembly designed to be mounted in a commercial HVAC, and to other types of A/C units is described herein. The reflector/shield includes a reflective inner surface creating an illumination pattern and an outer surface shielding the UV lamp from the air flow. An orienting and securing assembly for a UV lamp is also described herein.

Ultra-violet lamp and reflector/shield assembly

Ultra-violet lamp and reflection/shield assembly

An outwardly projecting air purifier including a support, a generally cylindrical array of UV lamp assemblies mounted to the support, wherein each UV lamp assembly includes a reflector having a generally parabolic inner surface and a UV lamp so mounted to the reflector that the inner surface of the reflector reflects a portion of the ultraviolet radiation emitted by the lamp in an outward, radial, direction is described herein. The air purifier also includes a convex shaped deflector element so mounted to the support that the airflow is deflected by the deflector element and brought near the lamps.

Outwardly projecting air purifier

A burner is provided for heating a stream of combustion supporting gas, like air. The burner has a main feed pipe extending across the stream of combustion supporting gas. The main feed pipe has an inlet for receiving a fuel gas from a fuel gas source, and at least one outlet for producing a main jet of fuel gas substantially in the direction of the stream. The burner also has two parallel auxiliary feed pipes extending across the stream of combustion supporting gas, at a predetermined distance downstream from the main pipe and on each side of the main jet. Each of the auxiliary feed pipes has an inlet for receiving fuel gas from the fuel gas source, and at least one outlet for producing an auxiliary jet of fuel gas in the direction of the stream. The burner further has two bluff-body devices in front of the outlets of both the auxiliary feed pipes respectively. Each of the bluff-body devices has a hole aligned with each corresponding outlet in order to produce a stable pilot flame adjacent to the main jet of fuel gas for ignition thereof. This burner is useful since it allows for a better mixing of the fuel gas with the stream of combustion supporting gas. Such in turn allows for a better combustion of the fuel gas and, hence, a reduction of pollutant emissions.

Gas staged burner

A gas burner is described having a cylindrical combustion chamber having at least two spaced apart counter-rotation stationary tangential air injectors and at least three sets of radial injection holes in between for admitting air under pressure in the combustion chamber to cause adjacent counter-rotation air turbulence regions in said combustion chamber. The combustion chamber has a closed end and an open end with a gas injector tube extending in the chamber from the closed end and disposed centrally therein. The injector tube has combustion gas injection ports at least upstream and downstream of the at least two air injectors to create a combustion mixture which is initially fuel-lean to generate a flame having a lower temperature and producing less nitrogen oxide than with conventional gas burners of this type. An air chamber is provided about at least a portion of the combustion chamber and communicates with the tangential air injectors.

Gas burner having tangential counter-rotation air injectors and axial

An air-cooled oxygen-gas burner for use with a direct fired furnace. The burner comprises a body formed from three concentric metal tubes supported in a cylindrical housing secured about a conical bore in a refractory side wall of a furnace. The three concentric tubes have a cone shaped inner end which are adjustable to define a nozzle with annular openings therebetween of variable size to vary the shape of a flame produced by a mixture of combustible gas, oxygen and air fed under pressure, respectively, in each of two chambers defined between the three concentric metal tubes and a chamber defined between the tubes and the cylinder housing. The combustible gas is fed in the inner chamber, the oxygen in the intermediate chamber, while the air is fed in the outer chamber to cool the concentric tube assembly and the furnace refractory about the burner nozzle. The tube assembly can be retracted within the cylinder housing so that the nozzle is protected from the high heat within the furnace after the burner is shut off.

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Rosemere, Canada

Normand Brais