| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 126116000 |
Liquid or gaseous fuel
| 55 |
| 126110000 |
Compressed air
| 24 |
| 126112000 |
Feeding air
| 17 |
| 126114000 |
Casings | 5 |
| 20090044793 | FURNACE BURNER BOX - A burner box for a furnace. The burner box includes a housing attached to the furnace. The burner box further includes a module configured to align and support a burner within the housing. The module is detachable from the housing and removable from the furnace burners. The module is detachable from the housing without disassembly or detachment of the housing from the furnace. | 02-19-2009 |
| 20120085334 | FURNACE ASSEMBLY - A furnace includes a cabinet having a top plate and a blower located in the cabinet. A blower shelf is located in the cabinet and has a first side supportive of the blower and a second side including one or more canted slide rails. A heat exchanger is located in the cabinet between the blower and the top plate and is securable to the one or more canted slide rails. The one or more canted slide rails are configured to allow removal of the heat exchanger from the cabinet along the canted slide rails without removal of the top plate from the cabinet. | 04-12-2012 |
| 20130139803 | CABINET FOR A HEATING APPLIANCE WITH INTEGRATED VIEWING WINDOW - A cabinet for a heating appliance. The cabinet has an integrated viewing window to permit inspection of the interior components of the appliance. The viewing window comprises an elongate transparent viewing member integrated into the cabinet. The viewing member is generally aligned with a burner or burner tray of the appliance such that the functionality and operation of the burner or burners can be viewed and inspected exterior to the cabinet. The viewing member is positioned at an angle relative to both the top and the front surfaces to facilitate the viewing and inspection of the burners through the viewing member and from an elevated position in front of the cabinet. | 06-06-2013 |
| 20160091221 | Furnace Cabinet with Integral Protrusion - A furnace has a cabinet having at least one wall at least partially defining an interior space of the cabinet, a heat exchanger disposed in the interior space, and a protrusion formed integrally with the at least one wall, the protrusion extending generally inward into the furnace to at least partially obstruct a circulation airflow through the cabinet. | 03-31-2016 |
| 20160146503 | HOT AIR BLOWER - A hot air blower, according to the present invention, which can have the advantage of allowing the inside of a combustion body assembly ( | 05-26-2016 |
| 126099000 |
Air baffles | 4 |
| 20080257336 | Furnace with Integrated Blower Housing and Heat Exchanger - A combustion furnace includes a blower housing with a centrifugal blower impeller disposed therein and plural heat exchanger tubes disposed substantially around a major portion of the periphery of the impeller. The heat exchanger tubes receive combustion gasses from plural burner nozzles and discharge combustion gasses to a plenum in communication with a motor driven inducer gas pump. The integrated blower housing and heat exchanger may be disposed in a cabinet including support structure for a fuel delivery manifold, associated burner nozzles and forming air inlet and outlet openings for air being circulated by the blower. | 10-23-2008 |
| 20080314378 | HEAT EXCHANGER - A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, the disclosure includes condensate control for secondary heat exchangers for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. The application provides condensate management to permit a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate, while providing a furnace system that utilizes less expensive materials and is easily fabricated. | 12-25-2008 |
| 20090293867 | COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion blower. Additional operating points may be calculated by interpolation and/or extrapolation, as appropriate. The furnace may temporarily alter these operating points as necessary to keep the furnace safely operating in response to minor and/or transient changes in the operating conditions of the furnace. | 12-03-2009 |
| 20120055465 | CONDENSATE PAN WITH CONDENSATE TRAP - A condensate pan for a condensing furnace includes a main chamber to receive exhaust gases, a condensate trap separate from the main chamber and internal the condensate pan and a main drain. | 03-08-2012 |
| 20130233306 | HVAC BASE AND RETURN AIR SYSTEM - A base is provided for installation of an HVAC system which allows for high efficiency air intake. The HVAC base and air return system provides for intake of air simultaneously through the bottom and side of a furnace unit. The HVAC base and air return system allow for installation and use of a wider filter box. | 09-12-2013 |
| 20140150775 | FINGER AIR BAFFLE FOR HIGH EFFICENCY FURNACE - One aspect of this disclosure provides a finger baffle for a heating furnace. This embodiment includes an elongated support plate having a length, and at least one finger baffle extending outwardly and in a vertically oriented direction from the elongated support plate. The at least one finger baffle has a width that extends along the length of the elongated support plate. The finger baffle may be employed in a high-efficiency gas furnace. | 06-05-2014 |
| 20140158115 | VELOCITY ZONING HEAT EXCHANGER AIR BAFFLE - One aspect of this disclosure provides a zoning baffle for a gas furnace. This embodiment comprises a housing, a primary heating zone located in the housing and comprising one or more heating chambers. A blower having an exhaust opening is located adjacent the primary heating zone and is positioned to force air through the primary heating zone. A zoning baffle is located between the blower and the primary heating zone. The zoning baffle comprises spaced apart baffles oriented substantially parallel with the one or more heating chambers. A method of manufacturing a gas furnace is also provided. | 06-12-2014 |
| 20160131395 | Furnace Cabinet with Three Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall, and a third baffle carried by a third wall of the furnace cabinet, wherein the third baffle is located adjacent to the first baffle and the second baffle, and wherein the third wall is located adjacent to the first wall and the second wall. | 05-12-2016 |
| 20160131397 | Furnace Cabinet with Nozzle Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, and a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall. The first baffle and the second baffle cooperate to form a nozzle within the furnace cabinet. A third baffle and a fourth baffle extend from the bottom of the first baffle and the second baffle, respectively, to the blower deck located adjacent to a secondary heat exchanger. | 05-12-2016 |
| 20080283047 | Radiant heater assembly - A radiant tube heater assembly includes a housing containing a blower and a burner, which is aligned with an opening in the housing through which a flame and products of combustion flow into a U-shaped burner tube. The closed downstream end of the burner tube is in close proximity to the housing. In order to prevent or reduce the likelihood of the products of combustion entering the blower, an exhaust tube is mounted in a downstream leg of the burner tube and extends outwardly through the U-shaped outer end of the tube remote from the housing. | 11-20-2008 |
| 20090056705 | COMBUSTION SYSTEM - A combustion system includes: a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger housing disposed outwardly of the plenum housing and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet. | 03-05-2009 |
| 126113000 |
Air moisteners | 2 |
| 20140174423 | WATERLESS HUMIDIFIER FOR RESIDENTIAL AND COMMERCIAL FURNACES - A method and apparatus for humidifying residential and commercial buildings in which a flue gas generated by a residential of commercial furnace is provided to one side of a porous liquid water transport membrane and habitable space air is provided to an opposite side of the porous liquid water transport membrane in an amount sufficient to provide a habitable space air to flue gas volume flow rate ratio of at least 8.3:1. At least a portion of the water vapor in the flue gas is condensed, providing condensed liquid water which is passed through the porous liquid water transport membrane to the habitable space air side of the porous liquid water transport membrane. On the habitable space air side of the membrane, the condensed liquid water is evaporated into the habitable space air, producing humidified habitable space air which is provided to the rooms of the residential and commercial buildings. Beneficially, no supplemental water source is required for the humidification process. | 06-26-2014 |
| 20150369518 | HIGH EFFICIENCY HEATER WITH CONDENSATE COLLECTION AND HUMIDIFICATION - A heater having a burner, a first heat exchanger associated with the burner, a second heat exchanger above the first heat exchanger in fluid cooperation with the first heat exchanger and an ambient air intake blower above the second heat exchanger. The second heat exchanger comprises angularly disposed finned section so condensate within the second heat exchanger flows to a collection point and is collected in a trap. The trap includes a sensor to sense buildup of fluid in the trap with feedback to the heater controls. The heater may include a collection pan below the heat exchangers in fluid communication with the trap. In one aspect the collection pan may include a heating element to vaporize the fluid so that heated, humidified air is expelled through vents adjacent the base of the heater. In another aspect, the pan includes an ultrasonic vaporization element to vaporize fluid in the pan. | 12-24-2015 |
| 126109000 |
Tubular air heater | 2 |
| 20120240916 | Multiple Barrel Forced Air Heater - A multiple barrel forced-air heater comprising a base, a first heater jacket, and a second heater jacket. The base may comprise a fuel tank adapted to accept a fuel. The first heater jacket may comprise a first device for producing a first air flow, a first Venturi adapted to mix fuel with the first air flow to form a first fuel-air mixture, and a first combustion site adapted to combust the first fuel-air mixture to generate a first amount of heat and a first amount of combustion products. The second heater jacket may comprise a second device for producing a first air flow, a second Venturi adapted to mix fuel with the second air flow to form a second fuel-air mixture, and a second combustion site adapted to combust the second fuel-air mixture to generate a second amount of heat and a second amount of combustion products. | 09-27-2012 |
| 20160018132 | HEAT EXCHANGER COIL FOR A RECREATIONAL VEHICLE - A compact heat exchanger suitable for use in a forced air furnace for a recreational vehicle includes a multi-turn coil having linear segments interposed between bends. The coil is formed from a monolithic tube with portion of the tube being expanded to vary the diameter. | 01-21-2016 |
| 126099000 |
Tubular heater | 2 |
| 20080257336 | Furnace with Integrated Blower Housing and Heat Exchanger - A combustion furnace includes a blower housing with a centrifugal blower impeller disposed therein and plural heat exchanger tubes disposed substantially around a major portion of the periphery of the impeller. The heat exchanger tubes receive combustion gasses from plural burner nozzles and discharge combustion gasses to a plenum in communication with a motor driven inducer gas pump. The integrated blower housing and heat exchanger may be disposed in a cabinet including support structure for a fuel delivery manifold, associated burner nozzles and forming air inlet and outlet openings for air being circulated by the blower. | 10-23-2008 |
| 20080314378 | HEAT EXCHANGER - A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, the disclosure includes condensate control for secondary heat exchangers for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. The application provides condensate management to permit a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate, while providing a furnace system that utilizes less expensive materials and is easily fabricated. | 12-25-2008 |
| 20090293867 | COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion blower. Additional operating points may be calculated by interpolation and/or extrapolation, as appropriate. The furnace may temporarily alter these operating points as necessary to keep the furnace safely operating in response to minor and/or transient changes in the operating conditions of the furnace. | 12-03-2009 |
| 20120055465 | CONDENSATE PAN WITH CONDENSATE TRAP - A condensate pan for a condensing furnace includes a main chamber to receive exhaust gases, a condensate trap separate from the main chamber and internal the condensate pan and a main drain. | 03-08-2012 |
| 20130233306 | HVAC BASE AND RETURN AIR SYSTEM - A base is provided for installation of an HVAC system which allows for high efficiency air intake. The HVAC base and air return system provides for intake of air simultaneously through the bottom and side of a furnace unit. The HVAC base and air return system allow for installation and use of a wider filter box. | 09-12-2013 |
| 20140150775 | FINGER AIR BAFFLE FOR HIGH EFFICENCY FURNACE - One aspect of this disclosure provides a finger baffle for a heating furnace. This embodiment includes an elongated support plate having a length, and at least one finger baffle extending outwardly and in a vertically oriented direction from the elongated support plate. The at least one finger baffle has a width that extends along the length of the elongated support plate. The finger baffle may be employed in a high-efficiency gas furnace. | 06-05-2014 |
| 20140158115 | VELOCITY ZONING HEAT EXCHANGER AIR BAFFLE - One aspect of this disclosure provides a zoning baffle for a gas furnace. This embodiment comprises a housing, a primary heating zone located in the housing and comprising one or more heating chambers. A blower having an exhaust opening is located adjacent the primary heating zone and is positioned to force air through the primary heating zone. A zoning baffle is located between the blower and the primary heating zone. The zoning baffle comprises spaced apart baffles oriented substantially parallel with the one or more heating chambers. A method of manufacturing a gas furnace is also provided. | 06-12-2014 |
| 20160131395 | Furnace Cabinet with Three Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall, and a third baffle carried by a third wall of the furnace cabinet, wherein the third baffle is located adjacent to the first baffle and the second baffle, and wherein the third wall is located adjacent to the first wall and the second wall. | 05-12-2016 |
| 20160131397 | Furnace Cabinet with Nozzle Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, and a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall. The first baffle and the second baffle cooperate to form a nozzle within the furnace cabinet. A third baffle and a fourth baffle extend from the bottom of the first baffle and the second baffle, respectively, to the blower deck located adjacent to a secondary heat exchanger. | 05-12-2016 |
| 20080283047 | Radiant heater assembly - A radiant tube heater assembly includes a housing containing a blower and a burner, which is aligned with an opening in the housing through which a flame and products of combustion flow into a U-shaped burner tube. The closed downstream end of the burner tube is in close proximity to the housing. In order to prevent or reduce the likelihood of the products of combustion entering the blower, an exhaust tube is mounted in a downstream leg of the burner tube and extends outwardly through the U-shaped outer end of the tube remote from the housing. | 11-20-2008 |
| 20090056705 | COMBUSTION SYSTEM - A combustion system includes: a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger housing disposed outwardly of the plenum housing and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet. | 03-05-2009 |
| 126106000 |
Internal air chamber | 1 |
| 20140026879 | NATURAL FUEL HEATING SYSTEM - The natural fuel heating system includes an elongate firebox covered by a cowling. The firebox includes means for accessing the interior thereof for fuel placement and vents at opposite ends. The cowling surrounds a majority of the firebox and forms an air circulating barrier between the firebox and the cowling. Outside air is introduced into the barrier through an intake shroud extending from the back of the firebox. The natural fuel heating system includes a heat exchange system for efficiently heating the cooler outside air circulating within the barrier. The heated air is drawn through an exhaust shroud extending from the air barrier into a building ventilation system to heat the building via natural thermal convection and negative air pressure caused by oxygen consumption from combustion within the firebox. A waste gas exhaust vent protrudes from the firebox to deliver harmful exhaust gas back outside. | 01-30-2014 |
| 126101000 |
Combined with boiler | 1 |
| 20190145618 | SYSTEMS AND METHODS FOR AGITATING FUEL WITHIN A HEAT EXCHANGER | 05-16-2019 |
| 126107000 |
Magazine | 1 |
| 20130104873 | PELLET FURNACE | 05-02-2013 |
| 126117000 |
Preliminary air heater | 1 |
| 20130019850 | ENHANCED RADIATIVE TRANSFER AND HEAT RECOVERY FOR COMBUSTION DEVICE - A stove includes a combustion chamber for producing heat, a thermoelectric device thermally coupled to a hot source and a cold source, a battery, a fan electrically connected to the thermoelectric device and the battery, and a controller configured to monitor the battery and thermoelectric device and configured to direct the fan be operated from power provided from the battery when power produced from the thermoelectric device is insufficient to power the fan. The stove can have an associated heating plate, and the walls of the combustion chamber can be configured to reflect heat onto the heating plate. | 01-24-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20080257336 | Furnace with Integrated Blower Housing and Heat Exchanger - A combustion furnace includes a blower housing with a centrifugal blower impeller disposed therein and plural heat exchanger tubes disposed substantially around a major portion of the periphery of the impeller. The heat exchanger tubes receive combustion gasses from plural burner nozzles and discharge combustion gasses to a plenum in communication with a motor driven inducer gas pump. The integrated blower housing and heat exchanger may be disposed in a cabinet including support structure for a fuel delivery manifold, associated burner nozzles and forming air inlet and outlet openings for air being circulated by the blower. | 10-23-2008 |
| 20080314378 | HEAT EXCHANGER - A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, the disclosure includes condensate control for secondary heat exchangers for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. The application provides condensate management to permit a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate, while providing a furnace system that utilizes less expensive materials and is easily fabricated. | 12-25-2008 |
| 20090293867 | COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE - A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion blower. Additional operating points may be calculated by interpolation and/or extrapolation, as appropriate. The furnace may temporarily alter these operating points as necessary to keep the furnace safely operating in response to minor and/or transient changes in the operating conditions of the furnace. | 12-03-2009 |
| 20120055465 | CONDENSATE PAN WITH CONDENSATE TRAP - A condensate pan for a condensing furnace includes a main chamber to receive exhaust gases, a condensate trap separate from the main chamber and internal the condensate pan and a main drain. | 03-08-2012 |
| 20130233306 | HVAC BASE AND RETURN AIR SYSTEM - A base is provided for installation of an HVAC system which allows for high efficiency air intake. The HVAC base and air return system provides for intake of air simultaneously through the bottom and side of a furnace unit. The HVAC base and air return system allow for installation and use of a wider filter box. | 09-12-2013 |
| 20140150775 | FINGER AIR BAFFLE FOR HIGH EFFICENCY FURNACE - One aspect of this disclosure provides a finger baffle for a heating furnace. This embodiment includes an elongated support plate having a length, and at least one finger baffle extending outwardly and in a vertically oriented direction from the elongated support plate. The at least one finger baffle has a width that extends along the length of the elongated support plate. The finger baffle may be employed in a high-efficiency gas furnace. | 06-05-2014 |
| 20140158115 | VELOCITY ZONING HEAT EXCHANGER AIR BAFFLE - One aspect of this disclosure provides a zoning baffle for a gas furnace. This embodiment comprises a housing, a primary heating zone located in the housing and comprising one or more heating chambers. A blower having an exhaust opening is located adjacent the primary heating zone and is positioned to force air through the primary heating zone. A zoning baffle is located between the blower and the primary heating zone. The zoning baffle comprises spaced apart baffles oriented substantially parallel with the one or more heating chambers. A method of manufacturing a gas furnace is also provided. | 06-12-2014 |
| 20160131395 | Furnace Cabinet with Three Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall, and a third baffle carried by a third wall of the furnace cabinet, wherein the third baffle is located adjacent to the first baffle and the second baffle, and wherein the third wall is located adjacent to the first wall and the second wall. | 05-12-2016 |
| 20160131397 | Furnace Cabinet with Nozzle Baffles - A condensing gas-fired furnace has a furnace cabinet, a primary heat exchanger, a secondary heat exchanger located upstream relative to the primary heat exchanger with regard to location within a circulation airflow path, a first baffle carried by a first wall of the furnace cabinet, and a second baffle carried by a second wall of the furnace cabinet, wherein the second baffle is located opposite the first baffle, and wherein the second wall is located opposite the first wall. The first baffle and the second baffle cooperate to form a nozzle within the furnace cabinet. A third baffle and a fourth baffle extend from the bottom of the first baffle and the second baffle, respectively, to the blower deck located adjacent to a secondary heat exchanger. | 05-12-2016 |
| 20080283047 | Radiant heater assembly - A radiant tube heater assembly includes a housing containing a blower and a burner, which is aligned with an opening in the housing through which a flame and products of combustion flow into a U-shaped burner tube. The closed downstream end of the burner tube is in close proximity to the housing. In order to prevent or reduce the likelihood of the products of combustion entering the blower, an exhaust tube is mounted in a downstream leg of the burner tube and extends outwardly through the U-shaped outer end of the tube remote from the housing. | 11-20-2008 |
| 20090056705 | COMBUSTION SYSTEM - A combustion system includes: a furnace housing defining a combustion chamber therein and having a gas outlet in fluid communication with the combustion chamber; a plenum housing surrounding and cooperating with the furnace housing to define a plenum chamber therebetween, and having an air inlet and an air outlet which are in fluid communication with the plenum chamber; and a heat exchanger housing disposed outwardly of the plenum housing and having an air inlet in fluid communication with the air outlet of the plenum housing, an air outlet, a gas inlet in fluid communication with the gas outlet of the furnace housing, and a gas outlet. | 03-05-2009 |
