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Forced air type

Subclass of:

392 - Electric resistance heating devices

392000000 - HEATING DEVICES (CLASS 219 SUBCLASS 200)

392347000 - Convection space heater

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
392360000 Forced air type 46
20110002672HEATER WITH IMPROVED AIRFLOW - The present room heater includes a housing supporting internal electric heat sources. The housing surrounds the heat sources with an interconnected serial series of chambers made from heat-conducting material. Air is motivated by an electric fan through the series of chambers to effect stepped uniform heating, as well as optimal heating as the air moves through preheat chambers and then closely past the heat sources to an outlet opening. The chambers are made using modular and relatively simply-made components that interfit to form the chambers, such that multiple configurations are possible, including stacked and laterally-adjacent versions. The modular components include a flat part, hat-shaped part, and U-shaped part that interfit to define a first elongated chamber and a second elongated chamber that wraps onto three sides of the first elongated chamber, the hat-shaped part having end-located notches to permit flow of air between the chambers.01-06-2011
20120070133THIN-FILM CARBON FORCED WARM-AIR-HEATING UNIT - A forced warm-air heating apparatus, a forced warm-air heating system, and method to heat warm-air using an enclosure containing a plurality of thin film carbon-based heating elements configured and arranged to heat a desired heating space driven by a fan assembly, is described. The plurality of thin film heating elements is further ured and arranged to deflect and divide air flow as it flows through the heating enclosure.03-22-2012
20120328270Explosion Proof Forced Air Electric Heater - An explosion proof forced air electric heater is designed to supply heat to hazardous areas where the atmosphere contains readily combustible gases, vapors or dust particles. The heater employs an air mover which forces air through a metal heat sink with strategically placed electric heating elements. The terminal ends of the heating elements extend into a sealed and encapsulated explosion proof containment chamber which is connected to a centralized explosion proof enclosure. The explosion proof enclosure contains the control features and the electrical connections of the heater along with external accessories. The heating cycle is controlled via an electronic control circuit. The electronic circuit controls the process heating temperature, air mover operation, heating element operation, temperature measuring device operation, and monitors the total operation time of the heating elements while providing process failure feed back to the operator.12-27-2012
20130044997ELECTRIC CONVECTION HEATER AND METHOD OF USE FOR EXTERMINATING INSECTS - An electric heater includes an upper housing, a lower housing, a fan disposed in the upper housing, and a heater disposed in the upper housing. Electrical control components and circuitry are disposed in the lower housing and are connected for energizing the heater and for operating the fan. Mechanical support members are arranged for spacing the upper housing from the lower housing in order to create air discharge flow paths for air flow exiting from the upper housing. The discharged air at an elevated temperature is used to elevate the temperature of objects within a room for exterminating bed bugs.02-21-2013
20130188937HEAT MEDIUM HEATING APPARATUS AND VEHICLE AIR-CONDITIONING APPARATUS PROVIDED WITH THE SAME - An object of the present invention is to provide a small, lightweight, and inexpensive heat medium heating apparatus in which a flat tube heat exchanger and a PTC heater are laminated in a multi-layered manner to reduce a thermal contact resistance thereamong, heat transfer performance is improved, and also in which assembling of the flat tube heat exchanger and the PTC heater is made easier.07-25-2013
20130223822GAS HEATING APPARATUS - A thermally sprayed gas heater comprises a gas flow apparatus that propels a gas through a housing; and a thermally sprayed heater bonded to a surface of the apparatus, the heater positioned to heat the gas flow in the housing. In other aspects, a heater system for a turbulent flow gas duct comprises a duct having a gas flow channel, the channel having a shaped surface providing turbulent gas flow in the channel, and a thermally sprayed heater positioned to heat the gas flow in the channel.08-29-2013
20130223823ROOM HEATING APPARATUS AND METHODS - A room heater comprising a housing having an lower opening at the bottom of the housing forming an inlet to admit a gas into the housing and an upper opening positioned above the lower opening forming an outlet through which the gas exits the housing, and a thermally sprayed heater that provides heat to the gas inside the housing. A method of fabricating the room heater is also disclosed.08-29-2013
20130272685HEATING APPARATUS - Heating apparatus includes an air inlet, a plurality of air outlets, an impeller, a motor for rotating the impeller to draw air through the air inlet, a user interface for allowing a user to select a rotational speed of the motor from a user selectable range of values, and a plurality of heater assemblies each comprising at least one positive temperature coefficient (PTC) heating element for heating air passing from the air inlet to a respective air outlet. The magnitude of a current drawn by the heater assemblies is detected, and the rotational speed of the motor is controlled independently from the rotational speed selected by the user depending on a characteristic of the current drawn by the heater assemblies.10-17-2013
20140044424HEATING VENT CONDUIT - A heating vent conduit with a heater unit is disclosed, being primarily utilized to heat a room independently of other rooms. The heating vent conduit can be controlled a personal thermostat, which depending on the selected temperature will regulate a heating element within the heating vent conduit. The heating vent conduit is designed to be easily installed on existing ventilation systems by replacing the end boot at vent outlets, and will allow for individual preference and comfort by allowing independent room temperature, while lowering energy costs by reducing the main heater's workload.02-13-2014
20140079375ELECTRIC HEATING DEVICE AND ELECTRIC VEHICLE - An electric heating device suitable for heating an electric vehicle and having a novel structure is provided. The electric heating device includes: an electric motor that includes a stator having a plurality of stator coils arranged along the circumferential direction to generate a rotating magnetic field and a disk-shaped rotor that includes a plurality of one-turn coils disposed correspondingly to the stator coils and a soft magnetic metal plate supporting the one-turn coils; and a fan secured to the soft magnetic metal plate on a side thereof opposite from the one-turn coils and including a vane wheel that has a plurality of vanes and rotates integrally with the rotor.03-20-2014
20140178054VEHICLE HEATER AND METHOD FOR PRODUCING A VEHICLE HEATER - The invention relates to electric vehicle heater comprising at least one tube, in which at least one heating element is arranged, and at least one heat transfer panel, which is fastened to the tube and has a plurality of flow openings for an airflow to be heated. According to the invention, the heat transfer panel is a component that sits in a groove in the tube, said groove running in the longitudinal direction of the tube. The invention also relates to a method for producing a vehicle heater, wherein at least one heating element is arranged in a tube and at least one heat transfer panel is inserted into a groove on an outer side of the tube.06-26-2014
20140205271UNIVERSAL ELECTRIC DUCT HEATER AND METHOD OF USE - A duct heater has a unique and symmetric arrangement of an auto limit and a pair of back up limits to permit the duct heater to be mounted in a duct in a number of different orientations. The duct heater can include a diffuser screen and have a particular size with respect to an upstream piece of equipment such as a single duct variable air volume damper box so that it can be used in these types of applications as well as stand alone applications in a duct.07-24-2014
20140355966Electrical Heating Device For A Motor Vehicle And Vehicle And Associated Air-Conditioning And/Or Heating Unit - The invention relates to an electrical liquid heating device for a motor vehicle, said heating device comprising at least one module for heating the aforementioned liquid. The device is characterised in that the at least one heating module comprises: a substantially cylindrical chamber (12-04-2014
20150016808INDOOR UNIT FOR AIR CONDITIONING DEVICE - There is provided an indoor unit for an air conditioning device that can increase strength of a casing of the indoor unit and increase stability of the indoor unit, and promote cooling of an electric component. The indoor unit for the air conditioning device includes a casing formed with an intake port of air in a lower portion thereof, and formed with an exhaust port of the air in an upper portion thereof, a fan arranged inside the casing, and generating an air flow flowing from the intake port to the exhaust port, a heat exchanging device arranged below the fan inside the casing to exchange heat with the air taken into the casing from the intake port, and an electric component case provided at a position adjacent to a lateral side of the fan in a circulation space of the air in the casing and configured as a strengthening member of the casing.01-15-2015
20150037014FORCED AIR HEATER - A forced air heater is provided that includes: a heating element; a heat sink mounted on the heating element; and an air mover directing air towards the heating element such that the directed air provides impinged airflow in relation to the heating element. There is also provided a heater that includes a temperature sensing device, the temperature sensing device includes: a sensing plate mounted on a metallic component in the environment to be heated; and an electrical contact connected to the sensing plate, wherein the electrical contact is thermally coupled with the metallic component via the sensing plate. There is further provided a method of controlling a heater that includes a temperature sensing device that it is thermally connected to a solid component in the environment to be heated.02-05-2015
20150043898VEHICLE HEATER - Provided is a vehicle heater that is capable of being easily manufactured and being miniaturized due to a decrease in a thickness by forming a heat generating part using a first support part (and a second support part) positioned perpendicularly to an air flow direction and having a plate form and is capable of improving heating performance by improving heat exchange performance.02-12-2015
20150086185PULSE WIDTH MODULATED MULTIPLE HEATER CONTROL - A system includes, in one example, a first heater device, a second heater device, and a temperature sensor, each disposed within a fluid flow. The system further includes a controller communicatively coupled to the first heater device, the second heater device, and the temperature sensor. The controller is configured to receive, from the temperature sensor, an indication of a measured temperature of the fluid flow. The controller is further configured to control, based on a difference between the measured temperature of the fluid flow and a target temperature, operation of the first heater device via a first pulse width modulation signal and operation of the second heater device via a second pulse width modulation signal.03-26-2015
20150125134HEAT-RESISTANT ELECTRIC HEATER - An electric heater comprises a main body, a panel, a cross flow fan, a motor and a heating element. The main body is made by aluminum extrusion and has a bottom board and a front board. The bottom board and the front board define an air outlet therebetween. The panel is disposed on the main body and is formed with a plurality of air inlets. The cross flow fan is rotatably disposed in the main body. The motor is disposed on the main body and connected to the cross flow fan. The heating element is disposed in the main body. By this configuration, the main body is resistant to high temperature, the temperature of the heating element is not as limited, providing a preferred heating effect, structural strength and is less easily damaged.05-07-2015
20150300688AIR CONDITIONING APPARATUS - An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The partition member has a fan entrance bored in opposition to the blow-out port. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along the fan entrance and the blow-out port. The rotary shaft is disposed adjacent to a bladed wheel nearby lateral part of multiple lateral parts of the casing that are disposed along the opening direction of the fan entrance and the opening direction of the blow-out port. The blow-out port is at least partially disposed in a position adjacent to a blow-out port nearby lateral part of the multiple lateral parts of the casing and being opposed to the bladed wheel nearby lateral part.10-22-2015
20150321536AIR CONDITIONING SYSTEM FOR MOTOR VEHICLES - An air conditioning system for motor vehicles includes a blower configured to blow an air into a vehicle room, a PTC heater configured to heat the air blown into the vehicle room, the PTC heater having a heat generation amount adjusted by PWM duty ratio control, a blower air volume change amount measurement unit configured to, when an air volume of the blower is changed, measure a blower air volume change amount per unit time during a predetermined time period from a time point at which the air volume of the blower is changed, and a control unit configured to, when the air volume of the blower is changed, correct a PWM duty ratio of the PTC heater in view of the blower air volume change amount per unit time measured by the blower air volume change amount measurement unit.11-12-2015
20150321537AIR CONDITIONING SYSTEM FOR MOTOR VEHICLES AND CONTROL METHOD THEREOF - An air conditioning system for motor vehicles includes a temperature door configured to adjust an opening degree of a hot air path, a PTC heater configured to heat an air introduced into the hot air path, and a control unit configured to control an opening position of the temperature door with respect to the hot air path and to secure a minimum opening degree of the hot air path, so that a minimum amount of air is blown toward the PTC heater regardless of the opening position of the temperature door. The control unit is configured to actively adjust the minimum opening degree of the hot air path depending on an on/off condition of the PTC heater.11-12-2015
392361000 Heating attachment for fan 5
20080205862Reflection Heating Fan - The present invention discloses a reflection heating fan comprising at least one fan rotating over a main axle, at least one heating element and at least one reflector, said heating element and reflector are continuing from said main axle, wherein said heating element indirectly heats an air stream by reflecting heat produced by a heating element into the air stream produced by said fan. The present invention also discloses a method of indirectly heating a stream of air, comprising applying energy to a heat emitting element incorporated into a bi-functional rotation axle, reflecting said energy by means of a reflective surface into an air stream produced by applying rotation to a bladed fan structure, achieved by transferring the power from a motor through the bi-functional axle to at least one bladed fan structure.08-28-2008
20090310949FAN BLADE HEATING UNIT - A fan blade heating unit including a fan blade designed to be operatively mounted in an electrical ceiling fan for normal rotation with the fan. The fan blade includes a heating element positioned therein for connection to the power source driving the ceiling fan.12-17-2009
20120155840FAN HEATER APPLYING A CARBON FIBER RIBBON SECURED IN EACH HEATING CARTRIDGE - A fan heater includes a main body having a suction port provided at a lower side thereof and a hot-air outlet port provided at an upper side thereof, blower provided below the hot-air outlet port within the main body, a plurality of heating cartridge holders provided on in the main body, a plurality of heating cartridges, each of the heating cartridges configured to be secured to each of the heating cartridge holders and to heat air flowing into the main body through the suction port, a carbon fiber ribbon provided in each of the heating cartridges, and an interior housing that guides the air introduced through the suction port to the hot-air outlet port.06-21-2012
20120230658FAN ASSEMBLY - A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.09-13-2012
20150104159HEATING AND COOLING APPARATUS - A heating and cooling apparatus provides hands free operation for heating and cooling a room and purifying the surrounding air. Apparatus includes a fan, a housing for receiving the fan, and at least one heating element positioned between an outer edge of the fan and an inner surface of the housing. Apparatus further includes system logic to control operation of a motor when a parameter, such as temperature or occupation of a room is detected. Housing includes air purifying properties to reduce virus or bacteria in the air moving through the apparatus.04-16-2015
392362000 Fan with heated blades 1
20140056578Heating Fan - A heating fan has a fastening means for fastening of said fan to a first surface. A stem connects the fastening means to a hub. The hub has a motor unit. The motor unit rotates a plurality of wings extending radially from said hub. The wings have upper and lower surfaces. Each wing has a leading edge and a trailing edge, defining upper and lower surfaces therebetween. At least one wing has electrical heating means integrated or connected to the upper surface. At least more than half the length of the leading and/or trailing edge is bent downwards relative to the surface of the wing.02-27-2014
392364000 Ceiling mounted 1
20140248041VENTILATING FAN FOR HEATING - A ventilating fan for heating, includes a main body frame provided with an opening, a fan casing provided with a fan therein, a heater assembly fixed at an air outlet of the fan casing and a thermostat for detecting an indoor temperature, and the thermostat is embedded in an air-passageway wall.09-04-2014
392365000 Portable 18
20080260364Forced Air Heater Including On-Board Source of Electric Energy - A forced-air heater having a self-contained on-board electric-power supply that allows the forced-air heater to operate without an external electric power source; a fuel tank; a combustion chamber; a support; a housing including upper and lower housing portions; a motorized fan that during operation draws in ambient air through an air intake and forces air into the combustion chamber.10-23-2008
20100178041PORTABLE HEATING ASSEMBLY - A device may include a housing defining a generally nonlinear path between an intake port for taking in fluid and an outlet port for outputting heated fluid. The device may also include a fan assembly disposed of the intake port for supplying the intake port with the fluid. Additionally, the device may also include a heat source disposed along the generally nonlinear path for heating the fluid supplied by the fan assembly. Further, the device may also include a compression assembly for at least partially defining the generally nonlinear path. The compression assembly may be configured for creating a first pressure region proximal to the intake port and a second pressure region distal to the intake port. The first pressure region may be a higher fluid pressure than the second pressure region.07-15-2010
201102621143 way rechargeable heating and cooling units - The present invention provides a product line of solar or battery powered, fully portable space-heaters and air-conditioning units, designed for total portability and especially useful during times when ordinary household electrical service is interrupted. The units are presented in a host of models, styles, and sizes. The product line includes a series of embodiments such as, bi-faced “sandwich-style” heaters, carousel-style cylindrical heaters, floor lamp style cylindrical heaters, a carousel-style cylindrical air-conditioning unit and a shorter, carousel-style air-conditioning unit used aboard school buses. Each of the units is freestanding, ranging between approximately thirty-four and fifty-four inches in height, and generally featuring circumferences of approximately twenty-eight to thirty inches.10-27-2011
20110268429Forced Air Heater Including On-Board Source of Electric Energy - A forced-air heater having a self-contained on-board electric-power supply that allows the forced-air heater to operate without an external electric power source; a fuel tank; a combustion chamber; a support; a housing including upper and lower housing portions; a motorized fan that during operation draws in ambient air through an air intake and forces air into the combustion chamber.11-03-2011
20120281974REMOVABLE FIREPLACE ASSEMBLY - A fireplace assembly comprises a base defining a recess and an electric fireplace having wheels which are received in the recess when the fireplace is mounted on the base. The electric fireplace is removable from the base so that the fireplace can be rolled on its wheels to other locations. The base is typically configured to serve as a functional piece of furniture when the fireplace is removed.11-08-2012
20130251353HEATER - A heater comprising a housing including an intake aperture and an output aperture. The heater includes a heat exchanger operatively disposed within the housing between the intake aperture and the output aperture. The heat exchanger includes a shell forming a cavity therein, wherein an interior surface of the shell is substantially black in the infrared domain. The heater includes an infrared emission module disposed within the cavity of the heat exchanger and substantially enclosed thereby such that emitted infrared light does not escape therefrom. The infrared emission module includes a first infrared emitter and a second infrared emitter. The heater includes a fan positioned to motivate air into the housing through the intake aperture, across the heat exchanger, and out of the output aperture. The heater also includes a power module functionally coupled to the infrared emission module and the fan and configured to provide operational power thereto.09-26-2013
20140161425Accessible Cabinet Electric Heating System and Method - An electric heating system is provided with a heater mountable and removable in a cabinet by a user using a mounting system. The mounting system may include at least an installation member, installation receiver, and bracket. The installation member may interface with a surface or interior shelf of the cabinet. The bracket is includable between the surface or interior shelf of the cabinet and the surface of the heater. The installation member may be receivable by the bracket. The bracket may be received by the installation receiver or an additional bracket. The electrical cable may pass through a portal locatable on the cabinet. The heater may be an infrared heater with a fan. A wired or wireless remote with an optional display may control operation of the heater. A method is provided to manipulate the electric heating system.06-12-2014
20140169771HEATING AND VENTILATING FAN - A heating and ventilating fan including a frame, a motor with fan blades, a casing, a heating device, and an air path switching plate disposed at an air outlet of the casing for switching outlets of the ventilating fan and a timing motor. The timing motor and the air path switching plate are fixed on either side of a frame wall. The air path switching plate is connected to the timing motor shaft through a connection part, and controls the air path switching plate to rotate by a constant angle in a single direction. A spring having a first end fixed to the frame wall, and a second end rotating synchronously with the air path switching plate controls the air path switching plate to rotate in an opposite direction to the single direction. When the timing motor is switched off, the spring returns the air path switching plate to its rest position.06-19-2014
20140341550RADIANT HEATER - A portable heater providing both radiant and forced air heat a closed loop heating element positioned within a substantially oval shaped reflector, The reflector air vent allows air to pass in from a bottom of the reflector, over the closed loop heating element and the reflector. A housing surrounds the reflector and heating element. A blower is located at a lower end of the housing and draws air inward and up between the reflector and the heating element from which it emerges past the heating element. Control knobs for controlling a thermostat and output power level are located at the top surface of the housing.11-20-2014
20150292769Rechargeable Backup Electric Heating System for Power Outages - A rechargeable backup electric heating system includes a rechargeable portable electric heater, multiple rechargeable battery packs, a rapid recharging circuit, and one or more high capacity storage batteries, from which the battery packs are recharged. The rechargeable portable electric heater has a design power output of P watts, which is determined by the BTU/hr of heat output required to maintain a target temperature in living space under prevailing outdoor temperature conditions. There are n sets of rechargeable battery packs, each having a weight of B kg. At any given time, one of the battery packs is within or attached to the heater and serving as its source of electric power, and (n−1) battery packs are being recharged by the storage battery through the recharging circuit.10-15-2015
20160377321Fan Device with a Preheat Circulation Channel - A fan device includes a base unit having at least one air inlet and an outer tube that defines an accommodation space fluidly communicating with the air inlet, and a cover unit having a receiving chamber fluidly communicating with the accommodation space, an air outlet fluidly communicating with the receiving chamber, and a lower seat including spaced apart inner and outer annular walls, and a connecting wall interconnecting the annular walls. A preheat inner tube divides the accommodation space into a heating chamber and a preheat circulation channel that fluidly communicates with each other. A fan unit is disposed in the receiving chamber. A heating unit includes a heating component disposed in the heating chamber.12-29-2016
20190145663SYSTEM AND METHOD FOR OPERATING A PORTABLE AIR HEATER05-16-2019
392367000 Multi-direction air outlet 5
20080240689360° Portable electric space heater - A portable air heating system for use in all areas is disclosed. The portable air heating system provides a stream heated air for use in heating the interior of a structure, in 360°, multidirection, or a direction. Directional heating is accomplished through exhausts ports located all around the assembly. The heating system generally comprises an air transfer assembly for providing a flow of air through the system, an electrical heat emitting assembly, and a heat transfer housing for safely transferring the heat produced by the electrical heating assembly to the air flowing through the transfer assembly. Additionally, liquid filled bladders may be added to the heat emitting assembly to conserve and retain heat longer which will be said unit more energy efficient. The present heating system is also highly portable and simple to use, thereby providing an efficient mechanism for providing perform conditioning functions, such as air moving, heating, or cooling.10-02-2008
20090148141CONSOLE ELECTRIC HEATER WITH PLENUM - A portable electric heater possessing characteristics similar to a portable electric oil filled heater absent the use oil and its associated manufacturing and environmental problems. The device includes an electric heater, a rotatable plenum and an external housing providing space saving characteristics.06-11-2009
20120033952FAN ASSEMBLY - A fan assembly includes a motor-driven impeller for creating an air flow, a casing including an interior passage for receiving the air flow, and a plurality of air outlets for emitting the air flow from the casing. The casing defines and extends about an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets. The fan assembly also includes at least one heater for heating at least a first portion of the air flow, and means for diverting at least a second portion of the air flow away from said at least one heater. The plurality of outlets includes at least one first air outlet for emitting the relatively hot first portion of the air flow and at least one second air outlet for emitting the relatively cold second portion of the air flow.02-09-2012
20140161426Low Air Resistance Infrared Heating System and Method - A heating air circulation system with blades to move a gas in a flow direction, an infrared heating element located near the blades, and a heat exchanger located near the infrared heating element to direct the gas without substantially affecting a flow pattern of the gas. The system is selectable between heating and non-heating operation. An enclosure may be included with an inlet and outlet. The heat exchanger may be at least partially tapered. The blades may be curved and included in a crossflow fan.06-12-2014
20150093098FAN ASSEMBLY - A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.04-02-2015
392368000 With baffle 1
20160084528MOBILE HEATER AND FAN SYSTEM AND METHODS OF COMMISIONING A DATA CENTER - A mobile system for simulating a thermal load and airflow expected in the operation of a data center includes a thermal energy source, an impeller and impeller drive unit, an outlet port, a frame and a ground engaging member. The thermal energy source provides thermal energy to air adjacent to the thermal energy source. The impeller controls a flow rate of air adjacent to the adjacent to the thermal energy source. The outlet port outputs the flowing air. The impeller drive unit drives the impeller at a frequency based on a determined airflow at the outlet port. The frame supports the thermal energy source, the impeller, the output port and the drive unit. The ground engaging member supports the frame and enables the mobility of the system.03-24-2016
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