Multi-direction Air Outlet Patents (Class 392/367)
  • Publication number: 20150093098
    Abstract: 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.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Applicant: Dyson Technology Limited
    Inventors: Nicholas Gerald FITTON, John Scott SUTTON, Peter David GAMMACK, James DYSON, John David WALLACE, Arran George SMITH
  • Patent number: 8873940
    Abstract: 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.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 28, 2014
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Patent number: 8768151
    Abstract: A portable air blowing appliance has a housing retaining a blower adapted when energized to create an airflow through and from the housing, and a heating element adapted when energized to impart heat to the airflow. A movable deflector selectively steers the airflow either though or not through the heating element. In the exemplary embodiment shown, the blower is, in combination, a motor-driven centrifugal blower rotatable about a blower axis to create the airflow, and a scroll surrounding the blower wheel and adapted to direct the airflow from the blower wheel forwardly from the housing. In this exemplary embodiment, the deflector is movable about a pivot axis perpendicular to the blower axis between a heating position wherein the airflow is steered through the heating element and a cooling position where the airflow is steered not through the heating element.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: July 1, 2014
    Inventors: Yung-Ming Tai, Edwin Ho
  • Publication number: 20140161426
    Abstract: 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.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: TWIN-STAR INTERNATIONAL, INC.
    Inventors: Matthew Crowe, Jianmin Huang
  • Patent number: 8637796
    Abstract: An electrical heating device includes at least one heat generating element and at least one heat emitting element having opposed surfaces that abut the heat generating element. The heat generating element includes at least one PTC heating element having strip conductors on both sides of it for the electrical supply of the PTC heating element At least one of the strip conductor is provided with at least one contact projection which protrudes beyond a PTC heating element locating face formed on the strip conductor. Also disclosed is a heat generating element having at least one strip conductor provided with at least one contact projection.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 28, 2014
    Assignee: Eberspacher Catem GmbH & KG
    Inventor: Franz Bohlender
  • Patent number: 8526799
    Abstract: An air dehumidifier for use in small enclosures such as gun and other types of safes is disclosed. The air dehumidifier provides a natural convection dehumidifier circulation system for use in enclosures that reduces natural convection airflow through a drying chamber and thereby dehumidifies and circulates air within the enclosure. Heated air released through the air flow apertures combine with air drawn in through the air intake apertures in the base, to provide air circulation and dehumidification within the safe interior. This invention also provides a drying chamber end cap which prevents articles within the enclosure from blocking the airflow out of the drying chamber.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: September 3, 2013
    Assignee: Peet Shoe Dryer, Inc.
    Inventor: Blair G. Peet
  • Patent number: 8447176
    Abstract: A space heater and a method for generating a convection flow of air through chimneys of the space heater for heating an area adjoining the space heater is provided. The space heater includes a first panel, a second panel, and an element having one or more heatable surfaces. The second panel is coupled to the first panel and the element is located therebetween to define the chimneys between the first panel and the second panel. The element has the one or more heatable surfaces located within the chimneys. When activated, the one or more heatable surfaces create thermal energy for generating heated air within the chimneys, the heated air flowing by convection substantially upwardly through the chimneys to provide the heated air to the area adjoining the space heater.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: May 21, 2013
    Inventor: Mark J. McCourt
  • Publication number: 20120033952
    Abstract: 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.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 9, 2012
    Applicant: Dyson Technology Limited
    Inventors: John David WALLACE, Chang Hin Choong
  • Patent number: 8107798
    Abstract: 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.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: January 31, 2012
    Assignee: Lasko Holdings, Inc.
    Inventors: Barry Shapiro, Paul W. Orr, Robert L. Boohar
  • Patent number: 7639928
    Abstract: 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.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: December 29, 2009
    Inventor: Carl Garfield Coke
  • Publication number: 20090148141
    Abstract: 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.
    Type: Application
    Filed: October 9, 2008
    Publication date: June 11, 2009
    Applicant: LASKO HOLDINGS, INC.
    Inventors: Barry SHAPIRO, Paul W. ORR, Robert L. BOOHAR
  • Publication number: 20080240689
    Abstract: 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.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventor: Carl Garfield Coke
  • Patent number: 7326883
    Abstract: A housing and a base formed integrally with the housing or attached thereto. An array of louvres is attached to or formed integrally with the housing. An electric motor-driven fan is located within the housing and blows air toward the louvres. An electric heating element is situated within the housing between the fan and the array of louvres. This avoids subjecting the fan to excessive heat of the heating element and reduces turbulence of airflow past the louvres, thereby reducing operational noise levels.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: February 5, 2008
    Assignee: Chung Mei Industries Limited
    Inventor: Carlo Bertani
  • Patent number: 7088913
    Abstract: A multi-purpose electric heater that can be configured as a baseboard heater or an upright heater is provided. The heater preferably includes a pair of elongate housings that are coupled to a base in a manner that allows them to be moved between horizontal and upright positions. Each housing may include a rotatable portion that can be oriented to direct heat where desired.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 8, 2006
    Assignee: JCS/THG, LLC
    Inventors: Derek A. Verhoorn, Johnson Hsu, Andrew T. Sarkisian, Donald W. Bryce, Sarah V. Drake
  • Patent number: 6842581
    Abstract: Body Drier with a plurality of cylindrical housings, each housing retaining a heating coil, a fan blade, an electric fan motor, a fan bracket and a fan grill. Each cylindrical fan housing assembly is attached to the one above it by means of standard electrical connectors. The cylindrical housings each have a cut out portion to allow warm air to flow out from the fan. Each cut out portion is covered by a grill. The cylindrical housings each have a standard bayonet type attachment so that the housings can be attached one on top of the other creating a tower. The tower secured in an upright position by a base plate. A single power cord exits from the base plate so that the attached plug can be inserted into a standard wall socket. The body drier includes a standard oscillating mechanism that causes the tower to oscillate.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 11, 2005
    Inventor: Neil Schafer
  • Patent number: 6539170
    Abstract: A kind of economical household ventilator consists of the housing and blower. On the housing there are air inlets and exits. There are several air exits with different directions distributed all over the housing. The air inlets are located on the top or/and bottom of the housing respectively. There are air brattices arranged in air exits which can be used for adjusting the air directions or the air exits can be fixed with air brattices for adjusting the air directions. Inside the machine or each air exit, an electrical heating part can be arranged allowing air flowing through so that it can supply warm air or conduct ventilation for general purpose depending on the requirements.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 25, 2003
    Inventor: Huang Shih-Ying
  • Publication number: 20030026600
    Abstract: A portable oscillating space heater is provided, which comprises at least one opening therein, at least one heating assembly including an electric heating element disposed within the housing for producing radiant heat energy, at least one fan mounted within the housing and adapted to produce a directed air flow introducing from the opening in the rear portion of the housing and passing through the electric heating element and thereby producing a heated air flow, and an oscillation mechanism for providing oscillatory movement at least to the heating assembly thereby to continuously change the direction of the heated air flow produced by the fan.
    Type: Application
    Filed: June 6, 2002
    Publication date: February 6, 2003
    Inventor: Giuseppe Delonghi
  • Patent number: 6466737
    Abstract: A method and apparatus for conditioning air includes conditioning units that are removably attached together. The conditioning units may be separated from each other and individually perform conditioning functions, such as air moving, heating, humidifying or cooling.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: October 15, 2002
    Assignee: Honeywell Consumer Products, Inc.
    Inventors: Walter G. Birdsell, Bruce Chute
  • Patent number: 6321034
    Abstract: A heater comprising two or more heating units which are rotatably attached to each other about a common axis. Preferably, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a flanged coupling. Alternatively, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a pin and slot arrangement. Each of the heating units include a housing having at least one opening and a heater element within the housing.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: November 20, 2001
    Assignee: The Holmes Group, Inc.
    Inventors: Heather Jones-Lawlor, Johnson Hsu
  • Publication number: 20010031137
    Abstract: A heater comprising two or more heating units which are rotatably attached to each other about a common axis. Preferably, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a flanged coupling. Alternatively, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a pin and slot arrangement. Each of the heating units include a housing having at least one opening and a heater element within the housing.
    Type: Application
    Filed: December 5, 2000
    Publication date: October 18, 2001
    Inventors: Heather Jones-Lawlor, Johnson Hsu
  • Patent number: 6130991
    Abstract: An electric hair dryer is connected to a portable housing having a plurality of angularly adjustable housing segments. The air passes through the segments and out spaced air outlet openings formed in the housing segments.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: October 10, 2000
    Inventor: Lilian E. Chapman
  • Patent number: 6049655
    Abstract: A fan apparatus 10 for use on the dashboard 101 of a vehicle 100 includes a housing member 20 having a fixed Louver element 22 for introducing ambient air into the interior of the housing member 20. The air will be heated by a heating coil member 30 and the heated air will be forced through at least one downwardly angled hinged Louver panel 25 by at least one fan member 40. Wherein, the angular orientation of the fan member 40 can be altered by the manipulation of an elongated stem element 43 which projects through an enlarged opening 26 in the housing member 20.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: April 11, 2000
    Inventor: Naresh K. Vazirani
  • Patent number: 5884007
    Abstract: A vehicular heater is provided including a box mounted within a vehicle. Also included is a heater assembly situated within the box and adapted to generate heat upon the receipt of power. A plurality of exhaust fans are each rotatably mounted to the box for creating a flow of air past the heater assembly and directed toward the engine of the vehicle and further in communication with the vehicle cab heater duct system of the vehicle. Next provided is a control panel for selectively supplying the exhaust fans and heater assembly with power.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: March 16, 1999
    Inventor: Len Fein
  • Patent number: 5844202
    Abstract: A portable automatic windshield defroster having a housing, including a housing top and a housing bottom. The housing further includes a housing left and a housing right. The housing left is securely attached to a proximal end of the housing left egress and is sealably connected to a housing left connector which functions to cover the housing left egress. A housing left diffuser is sealably connected to a distal end of the housing left connector. The housing bottom has a housing bottom inlet therethrough. The housing bottom further comprises a housing bottom attachment means secured thereto and functions to removably affix the housing bottom to a vehicle dashboard. The portable automatic windshield defroster further comprises a primary power means, which may include a cigarette lighter cord.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: December 1, 1998
    Inventor: Jamie Alverson
  • Patent number: 5790748
    Abstract: A heater for heating and dispensing air within a room. the inventive device includes a heater having a heating coil or radiator located within a housing. Fan assemblies are mounted to end panels and/or front panels of the housing to force air through the heater and into a room.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: August 4, 1998
    Inventor: Ashok Y. Tamhane
  • Patent number: 5721804
    Abstract: A space heater employs a generally Y-shaped housing. A boiler within the housing contains a working fluid at subatmospheric pressure when at ambient temperature. This reduces the boiling point of working fluid. A series of heat exchangers are mounted in the branch portions of the housing and connected to receive working fluid from the boiler. A blower directs ambient air between the heat exchangers and through the front openings of the housing. A valve can be operated to release pressure from within the boiler and heat exchangers. An electric heating element heats the working fluid within the boiler to a temperature above the boiling point under normal operating conditions. During initial manufacture or repair of the unit, the heating element is activated to heat the working fluid while the valve is open, and then deactivated with the valve is closed to allow the working fluid to cool, thereby creating reduced pressure within the boiler.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: February 24, 1998
    Assignee: Heatech International, Inc.
    Inventor: Grant G. Greene, III
  • Patent number: 5671321
    Abstract: A heat gun quickly and efficiently dries joint compound. The heat gun includes an outer shroud defining an airflow chamber and a fan which drives airflow therethrough. A motor provides drive to the fan while a plurality of heating coils disposed within the airflow chamber heat the airflow between 1200 and 1700 .degree. Fahrenheit. A fan-shaped attachment is attached about an endcap of the heat gun. The fan-shaped attachment extends into a pair of sidewall surfaces terminating in an elongated port. The elongated port is preferably between 1/2 and 3 inches in diameter and between 8 and 12 inches in length. The endcap of the heat gun is between 1 and 3 inches in diameter. A plurality of ribs connect the pair of sidewall surfaces and extend longitudinally from the endcap of the heat gun to the elongated port of the fan-shaped attachment to define a plurality of longitudinal air passages which evenly distribute airflow along the fan-shaped attachment.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: September 23, 1997
    Inventor: Donald J. Bagnuolo
  • Patent number: 5655055
    Abstract: A portable forced air space heater having a three hundred sixty degree peripheral dispersion pattern. The heater has a tubular housing and a fan forcing air past a heating element upwardly within the housing. The air encounters a conical deflector which redirects the air to flow outwardly at the top of the housing. One or more movable baffles are selectively placed in the housing so as to obstruct discharge of air at various selected sections of the peripheral pattern of discharge. This feature prevents injurious or otherwise objectionable discharge of heat when the heater is placed close to another object. The baffles are arcuate, so that they cooperate with the tubular housing, and insulated to minimize propogation of heat to the obstructed portion of the discharge pattern. Baffles are removable from the heater, and are maneuvered for adjusting their position from outside the heater.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: August 5, 1997
    Assignee: Holmes Products Corp.
    Inventors: Andrew Goldstein, Lawrence M. Kula
  • Patent number: 5513296
    Abstract: A positive temperature coefficient (PTC) heater includes a housing, a fan mounted within the housing, a pair of positive temperature coefficient (PTC) heater assemblies disposed in the housing, and a plenum mounted in the housing. The housing includes a front portion and a rear portion connected together to define a front, a rear, a left side and a right side, the front and rear each having at least one opening. The fan is arranged to produce a flow of air from the rear of the housing to the front. The pair of positive temperature coefficient (PTC) heater assemblies are disposed in side by side relationship and angled relative to each other, each at an angle of approximately 7.5 degrees from normal, so as to produce a diverging column of heated air. The plenum mounted in the housing directs the air flow produced by the fan through each of the PTC heater assemblies.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: April 30, 1996
    Assignee: Holmes Products Corp.
    Inventor: Andrew M. Goldstein
  • Patent number: 5495888
    Abstract: A heater control for controlling operation of a heater switch (12) in an evaporative cooler having an alternative heater mode in which a heater element (40) is energized and part of the air flow is blanketed by a shutter (37) controlled by a slide (24) or other operator. The slide (24) has a cam face (25) which directly or indirectly compresses a spring (22) as the shutter (41) is closed, the spring (22) otherwise biasing the heater switch (12) to its open contact state, but when the spring (22) is compressed, the switch (12) reverts to its closed contact state to energize the heater element (40).
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: March 5, 1996
    Assignee: F F Seeley Nominees Pty Ltd.
    Inventor: Robert W. James
  • Patent number: 5473824
    Abstract: A rotating outlet for hair dryers is provided causing air exiting from the hair dryer to travel in a circular pattern. A tubular member fits the outlet end of the hair dryer, and has a spider across its outlet end which carries a centrally located pivot. A rotating member is mounted on this pivot and carries vanes cutting across the air stream. The vanes cause the rotating member to rotate. The outlet of the rotating member is at an angle to the axis of the air flow leaving the dryer, and, so, as it rotates, causes the air to move in a circular pattern. This pattern duplicates the pattern provided by the user when she rotates the dryer itself.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: December 12, 1995
    Assignee: Conair Corporation
    Inventor: Barry V. Prehodka
  • Patent number: 5471763
    Abstract: A nozzle attachment for a hair dryer has a cylindrical element for connecting a flow-directing member to the nozzle of a hair dryer. The flow-directing member deflects the air coming from the hair dryer by a certain acute angle. The flow-directing member is rotatable relative to the cylindrical element. Vanes are provided within the flow-directing member. They are slanted to the direction of air flow from the hair dryer, so that impingement of air on the vanes causes the flow-directing member to rotate thus providing air flow having a continually varying flow direction.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: December 5, 1995
    Assignee: Wik Far East Limited
    Inventor: John McArthur
  • Patent number: 5245692
    Abstract: An electric space heater includes a hemispherical enclosure in which is positioned a blower arranged to draw air in through air inlets proximate the pole of the hemisphere for discharge through a plurality of air discharge outlets around the circumference of the enclosure. A filter between the inlets and blower filters the air and electric heating elements are provided for heating the air prior to discharge through the circumferential outlets. The enclosure is fastened to a base lying entirely within the periphery of the enclosure and supporting the blower and heating elements by a single fastener at the pole of the hemipshere with the filter captured between the enclosure and the internal parts of the heater supported on the base. The heater can be affixed to a surface by a mount attachable to the surface and having a threaded fastener engageable with a cooperating threaded member secured in a recess in the bottom of the base. The enclosure may be provided with wheels at its lower perimeter.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 14, 1993
    Assignee: Suiden Co., Ltd.
    Inventor: Yuzou Kawai
  • Patent number: 5157757
    Abstract: A handheld electrically powered hair dryer includes a main outlet nozzle and secondary air outlets for producing a diffuse distribution of air. A baffle arrangement is moveable between first and second positions to selectively deflect some or all of the air from the nozzle to the secondary air outlets. The baffle arrangement consists of a flexible crown-shaped metal foil disposed on the inside of the nozzle, and a mechanism for bending the foil radially inwardly to partially or completely block the nozzle when the baffle is moved toward the second position.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: October 20, 1992
    Assignee: China Pacific Trade Ltd.
    Inventor: John G. McDougall
  • Patent number: 5092518
    Abstract: 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 among various heating rate conditions. The hot-air heater includes at least of variable angle louvers which are vertically swingable, and a control means for swinging the louver in association with at least either a hot air flow rate at a hot air outlet opening of the heater or the heating value of the heat generating means, so that the louver is vertically swung in accordance with an output from the control means in order to minimize differences in temperature distribution in the room during operation of the heater under various heating conditions.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: March 3, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mituharu Tomioka, Tadashi Yamazaki, Hiroo Oshima, Hajime Satoda, Mitsuhiro Imajima
  • Patent number: 4965432
    Abstract: A device for temporary positioning in the interior of a vehicle for warming and defrosting through one or more resistance electric heater/blowers controlled by a timer connected to an exterior AC power source with an optional ground fault interrupter circuit. The attachment arm is preferably a tough, flexible elastomeric band having flat wire conductors extending therethrough from the device to the exterior of the vehicle.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: October 23, 1990
    Inventor: Jack W. Harris
  • Patent number: RE37642
    Abstract: A positive temperature coefficient (PTC) heater includes a housing, a fan mounted within the housing, a pair of positive temperature coefficient (PTC) heater assemblies disposed in the housing, and a plenum mounted in the housing. The housing includes a front portion and a rear portion connected together to define a front, a rear, a left side and a right side, the front and rear each having at least one opening. The fan is arranged to produce a flow of air from the rear of the housing to the front. The pair of positive temperature coefficient (PTC) heater assemblies are disposed in side by side relationship and angled relative to each other, each at an angle of approximately 7.5 degrees from normal, so as to produce a diverging column of heated air. The plenum mounted in the housing directs the air flow produced by the fan through each of the PTC heater assemblies.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: April 9, 2002
    Assignee: The Holmes Group, Inc.
    Inventor: Andrew M. Goldstein