Class 126/110A - Blower and air damper

Subclass of Class 126 - Stoves and furnaces
No. of patents: 41
Last issue date: 01/04/2011

Number	Title	Issue Date
7861708	Draft inducer blower mounting feature which reduces overall system vibration A draft inducer blower for high efficiency furnaces, including a blower housing which provides enhanced contact between the blower housing and the furnace collector box to reduce the flexing and vibration between the blower housing and the collector box. The blower ...	01/04/2011
7360534	Heated replacement air system for commercial applications Apparatus and a method for providing heated replacement air to a paint spray booth or other commercial process which requires heated make-up air to replace exhausted air. A blower draws outside air through a filter and an injection chamber prior to delivering the ai...	04/22/2008
7191826	Variable speed fan motor control for forced air heating/cooling system A fan motor speed control system for controlling the fan motor speed of an air conditioning system includes a power output circuit including a power triac which is turned on and off by an opto-isolator connected to a pulse generator circuit for varying an AC voltage...	03/20/2007
7100597	Modular burner/blower system and method A modular burner/blower system and method directed to an independently operable direct fired burner unit and an independently operable blower unit that are also configured to be interconnected to one another and to operate together. The direct fired burner unit incl...	09/05/2006
6951241	Method for cooling a motor in a blower assembly for a furnance A method of cooling the bearings of a motor in a motor housing for a furnace assembly is disclosed comprising an aperture in the motor housing whereby air is brought into the motor housing and drawn around the motor via an impeller into the impeller housing thereby ...	10/04/2005
6925999	Multistage warm air furnace with single stage thermostat and return air sensor and method of operating same A multistage furnace for heating residential or commercial spaces is operated by a single stage thermostat and a return air temperature sensor providing sensed temperature information to a controller. The furnace is started at a first, low firing rate and after a pr...	08/09/2005
6769425	Fuel-fired furnace with combustion air-cooled draft inducer fan motor A fuel-fired, forced draft air heating furnace has a draft inducer fan disposed in a vestibule chamber having an exterior wall with an air intake opening therein. During operation of the draft inducer fan its motor is cooled by combustion air drawn inwardly through ...	08/03/2004
6695046	Variable speed fan motor control for forced air heating/cooling system A fan motor speed control system for controlling the fan motor speed of an air conditioning system includes a power output circuit including a power triac which is turned on and off by an opto-isolator connected to a pulse generator circuit for varying an...	02/24/2004
6684944	Variable speed fan motor control for forced air heating/cooling system A forced air heating and/or cooling system utilizing an induction type fan motor is controlled by a controller circuit which is operable to continuously vary the speed of the fan motor during a start-up phase and a shut-down phase of the heating and/or co...	02/03/2004
6629523	Heated make-up air system A heated make-up air system comprising a duct structure having a direct gas fired burner mounted therein. Adjacent the burner there is provided an opening for permitting air to flow there through. Mounted adjacent the opening one or more pivotally mounted...	10/07/2003
6474329	Cell panel for furnace A one piece cell panel for a forced air furnace which is designed for ease of removal without the necessity of having to dismantle the furnace cabinet. The panel includes a substantially vertically disposed upper section which contains a plurality of cell...	11/05/2002
6389847	Air output unit in connection with a tempering station for glass panels, and method for manufacturing the same The invention relates to an air output unit in connection with a tempering station in a tempering plant for glass panels, and to a method for manufacturing the unit. An equipment bay (3) has its walls (32), roof (33), and floor (31) designed and dimension...	05/21/2002
6352431	Furnace inducer motor cooling system A furnace includes a main blower housed in an inlet plenum that circulates temperature controlled air through the furnace and an inducer fan that circulates combustion gases through the furnace. The inducer fan is driven by an inducer fan motor with a hou...	03/05/2002
6186138	Recycling air mixer for heater unit A portable controlled heating unit providing for recirculating heated air to obtain better control of exit temperature from a heating unit. Temperature sensors of exit temperature control vaned entrances and exits under one single unit to control the reci...	02/13/2001
5882185	Apparatus for detecting a head wind in a gas boiler and method thereof An apparatus for detecting a head wind in a gas boiler and method is disclosed which is capable of the magnitude of variation of voltage corresponding to the R.P.M. of an exhaust fan and the combustion state of flame. A microcomputer in the gas boiler det...	03/16/1999
5865618	Self-regulating forced air heater A self-regulating forced-air heater includes a housing in which is located an air passageway. A blower forces air through the air passageway, including into and out of a combustion chamber. A burner disposed within the combustion chamber combusts a fuel a...	02/02/1999
5740790	Counter-flow heating and air conditioning method for installing air conditioner unit therein A mobile or modular home hot air heating and humidifying system including a counter-flow furnace having a base pan and a housing resting on the base pan and containing a heat exchanger and a blower located above the heat exchanger for directing air downwa...	04/21/1998
5727730	Air heating device The invention relates to an air heating device with a hot air fan located in a housing to deliver hot air from an air inlet opening which is located on the face side via a heat exchanger to a hot air exit opening located on the opposite face. The object o...	03/17/1998
5560350	High efficiency, forced hot air heater which humidifies and cleans the air A compact, non-polluting, extremely energy-efficient, through-the-wall vented forced hot air heater, which humidifies and cleans said hot air without any additional equipment or water supply, comprises a rotating cylindrical heat and moisture transport/st...	10/01/1996
5540211	Pocket heat exchanger A pocket heat exchanger comprises an elongated combustion chamber that defines a plane passing through the combustion chamber longitudinal axis. A two-pass, three-pass, or four-pass duct system is arranged symmetrically about the plane to conduct hot prod...	07/30/1996
5494025	Heat exchanger for multi oil furnaces A heat exchanger for a multi oil furnace is disclosed wherein the external cabinet shell houses a central ventilation chamber divided into inlet and outlet sides by a generally vertical barrier. Combustion gases flow from the burner chamber into an upper ...	02/27/1996
5490495	Cleanout header for multi oil furnaces A multi oil furnace is disclosed wherein the front door is sealable against the burner chamber and against a lip extending around the circumference of a front header formed in the cabinet shell to operatively interconnect an upper bank of heat exchanger c...	02/13/1996
5433188	Fuel burning furnace A fuel burning furnace includes a number of energy efficient features. The furnace includes a heat exchanger in which combustion air is preheated by hot discharge gases. Diverters are provided in the heat exchanger to continually urge hot combustion gases...	07/18/1995
5394860	Method of connecting a heat exchanger to a forced air furnace and related valve A method of connecting a heat exchanger to a forced air furnace is described. Firstly, connect a valve to the hot exhaust gas outlet of a furnace. The valve has a generally "L" shaped valve body. The valve body includes a primary passage. A diversion pass...	03/07/1995
5392761	Blower mounting arrangement for forced air furnace A forced air furnace has its blower mounted on a blower shelf beneath the heat exchanger, by screws that enter aligned clearance holes in the blower mounting flanges and blower shelf and which engage gripper holes in a bottom lip of the vertical cell pane...	02/28/1995
5379751	Inducer collector box seal for induction condenser furnace A pair of sealing skirts join the inducer to the collector box of a condenser induction furnace, and accommodate offset in positions of the inducer inlet opening and the collector box outlet port. The two mating skirts are congruent and of generally trian...	01/10/1995
5092518	Hot-air type heater Provided is a hot-air type heater including a heat generating means such as a burner heater from which hot air is produced and blown out the heater into a living room so as to warm up the inside of the room with a uniform temperature distribution even amo...	03/03/1992
4917074	Direct gas-fired heating and ventilation method and apparatus A direct gas-fired heating and ventilating system for industrial and commercial buildings and the like comprises a direct gas-fired burner, fresh air dampers, fresh air bypass dampers and recirculation dampers....	04/17/1990
4890598	High efficiency blower A jet blower having a housing, a cylindrical chamber, a blower wheel in the chamber, four tangential passageways from said chamber, the passageways terminating in axially-directed nozzles and a Venturi foil surrounding each nozzle....	01/02/1990
4674475	Gas fired furnace A direct-fired make-up furnace comprises a cabinet which houses an air blower. A gas fired burner located in a sloped passage, which is formed by walls of a return air compartment and a by-pass air compartment, radiates heat at an angle relative to the bl...	06/23/1987
4480630	Jacketed combustion type heater with blowback prevention feature A jacketed wood burning stove of the type having an inner firebox door and an outer jacket door in front of the firebox door and wherein a flash inhibitor is provided consisting of a relatively small auxiliary firebox door which is manually biased open bu...	11/06/1984
4479481	Wood fuel heating apparatus and combustion process A boiler having a downdraft solid fuel firebox with a refractory hearth structure with a plurality of parallel internal conduits forming an internal combustion chamber, a heat exchanger below the firebox connected to the outlet of the internal combustion ...	10/30/1984
4429679	Modulair air heater An improvement of the space heating system delivering a composite comprising of heated outdoor air, unheated outdoor air and recirculated indoor air into a building to counter a natural infiltration of outdoor air by modulating the composite air supply de...	02/07/1984
4384191	Galley meal processing system A system for installation on aircraft to serve trays containing precooked food to passengers, the food-loaded trays being placed in the aircraft in the cold state and being heated to a service temperature level. The system includes a locker adapted to acc...	05/17/1983
4381443	Portable unit for heating packaged food A portable unit for heating packages containing pre-cooked cold food, the unit acting to rapidly heat up the food to a service temperature level and to thereafter maintain this level. The unit includes a case having a rack therein divided by shelves into ...	04/26/1983
4327279	Counter-top reheating unit for packaged pre-cooked meals A counter-top reheating unit for packages containing pre-cooked meals which are initially in a frozen state, the unit acting to quickly raise the temperature of the meals to a service temperature level and to maintain the meals at this level for an indefi...	04/27/1982
4325352	Internal recirculation device A method for converting a direct fired gas heating apparatus from one having a constant volume discharge air flow characteristics to one having variable volume characteristics by the use of an internally recirculating volume discharge air flow increment....	04/20/1982
4320739	Combustion type heater A jacketed wood burning stove of the type having an inner firebox door and an outer jacket door in front of the firebox door and wherein a flash inhibitor is provided consisting of a relatively small auxiliary firebox door which is manually biased open bu...	03/23/1982
4292950	Gas burner system A gas burning furnace system is disclosed, including a blower which draws air from outside the home for combustion. The blower forces combustion air to the gas burner via a pressure box situated between the blower and the burner. The pressure box encloses...	10/06/1981
4250866	Thermal energy storage to increase furnace efficiency A forced air furnace includes a conventional fuel fired, primary heat exchanger and a secondary heat exchanger associated with the stack. The secondary exchanger includes a phase change material having a transition temperature within the range of the stac...	02/17/1981

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Class 126/110A - Blower and air damper