Hot Air Patents (Class 126/89)
  • Patent number: 8893706
    Abstract: A heating device may comprise a control assembly having a self-contained, on board power supply. A control unit may control the operation of the heater and the power supply may comprise a first power source in electrical communication with the control unit, wherein the control unit controls the operation of the first power source to selectively supply electrical power to at least a portion of the heating device; and, a second power source in electrical communication with the control unit, wherein the control unit controls the operation of the second power source to selectively supply electrical power to at least a portion of the heating device.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 25, 2014
    Assignee: Enerco Group, Inc.
    Inventors: Brian S. Vandrak, Dennis O'Toole
  • Patent number: 8752540
    Abstract: A warming oven includes a base, a heating unit, a heat conducting unit, and a reflective shield. The base has an accommodating space. The heating unit is disposed within the accommodating space. The heat conducting unit includes a positioning plate, a top plate spaced apart from the positioning plate, a quartz glass tube inserted into the positioning plate and the top plate, and a plurality of upright connecting rods disposed around the positioning plate and the top plate. The reflective shield is formed with a plurality of vent holes, and includes a bottom cover that covers a top end of the heat conducting unit and that has a vertically curved outer mirror surface for reflecting light from a fire flame produced by the heating unit, thereby providing an illumination effect.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: June 17, 2014
    Assignee: Allgreen Designs Co., Ltd.
    Inventor: Wen Chang Yen
  • Patent number: 8678816
    Abstract: The invention relates to a hot air internal ignition burner/generator comprising an injection device used for producing a high-speed fuel gas mixture stream and for injecting said stream into the burner head (2) which is tabular-shaped and comprises in-series arranged therein a pressure recovery chamber (10), an igniting chamber (11) and simple or multiple diffusion means (24) which are fixed inside the head (2), where two chambers are jointed, wherein said diffusion means (24) comprise a central orifice provided with an igniting tube which penetrates therein and axially extends inside the pressure recovery chamber (10) in such a way that it defines the ignition chamber (43) provided with igniting electrodes (42) connected to the pressure recovery chamber (10) of the burner (2) via a calibrated orifice (46).
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: March 25, 2014
    Assignee: SEFMAT
    Inventor: Jean-Claude Sarrazy
  • Publication number: 20140011140
    Abstract: This invention relates to a heating device consisting of at least one burner for the combustion especially of a gaseous fuel, at least one radiant tube connecting to the burner, at least one fan generating a negative pressure or an excess pressure in the radiant tube, and at least one exhaust gas recirculation system with at least one exhaust gas recirculation passage through which an exhaust gas produced during the combustion of the primary fuel can be recirculated from the radiant tube to a transition zone from the burner into the radiant tube. In order to further develop a heating device of this type as well as a method for its operation the burner is adapted for being operated in at least two power stages and the exhaust gas recirculation system is controlled in dependence of the power stages of the burner in such a way that the volume flow of the recirculated exhaust gas is reduced with an increasing power stage of the burner.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 9, 2014
    Inventors: Bernd H. Schwank, Konrad Weber
  • Publication number: 20130160759
    Abstract: A warming oven includes a base, a heating unit, a heat conducting unit, and a reflective shield. The base has an accommodating space. The heating unit is disposed within the accommodating space. The heat conducting unit includes a positioning plate, a top plate spaced apart from the positioning plate, a quartz glass tube inserted into the positioning plate and the top plate, and a plurality of upright connecting rods disposed around the positioning plate and the top plate. The reflective shield is formed with a plurality of vent holes, and includes a bottom cover that covers a top end of the heat conducting unit and that has a vertically curved outer mirror surface for reflecting light from a fire flame produced by the heating unit, thereby providing an illumination effect.
    Type: Application
    Filed: May 10, 2012
    Publication date: June 27, 2013
    Applicant: ALLGREEN DESIGNS CO., LTD.
    Inventor: Wen-Chang YEN
  • Patent number: 6470876
    Abstract: A portable heater assembly includes a fan module, an electrical ignition assembly, a heating apparatus, and an encasement. The encasement supports and houses the fan module, the electrical ignition assembly, and the heating apparatus. The fan module includes a fan, an electric switch, and electrical wiring, the electrical wiring interconnecting the fan, electric switch and a power source. The electric switch activates the fan by forming a closed electrical circuit within the electrical wiring between the power source and the fan. The electrical ignition assembly includes an electrical ignition device, a spark-emitting electrode tip protruding from the electrical ignition device, and an ignition activator connected to the electrical ignition device by an activator connector.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: October 29, 2002
    Assignee: The Coleman Company, Inc.
    Inventors: Franklin T. Schmidt, Randall L. May, David H. Linnebur, Vernon M. Svitak, Jr.
  • Patent number: 6286500
    Abstract: A space heater capable of providing both radiant and blown warm air heating to a space beneath the heater. The heater comprises a housing, the underside of which is recessed to define a channel in which a combustion tube is mounted. The heater has a burner communicating with a first end of the tube, and a first fan means communicating with the tube for moving combustion gases along the tube from the first end to the second end. The housing includes an aperture in an upper surface thereof. The aperture is linked to a second fan means for directing air into the channel within the housing. A heat exchanger plate is mounted between the tube and the aperture. The heat exchanger plate is shaped to surround the upper surface of the combustion tube so as to absorb radiation therefrom and to prevent air from the aperture from impinging directly onto the tube. Air is heated by the heat exchanger plate before passing out downwardly through a lower end of the channel within the housing.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: September 11, 2001
    Inventor: David Mervin Jones
  • Patent number: 5780091
    Abstract: A spiral wound instant pasta solid sauce composite noodle is disclosed which employs selected dusting agents and solid sauce interleaved within the spiral to insure unrolling of the spiral upon subsequent boiling. A method for the preparation of the sauce and the noodle is also disclosed along with a system for packing the noodles in flexible envelopes to reduce breakage of the noodles and to permit inclusion of noodles longer than the flexible package filling aperture and reducing the incidence of perforation of the package.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 14, 1998
    Assignee: Thomas J. Lipton Co., Division of Conopco, Inc.
    Inventors: James Vincent Cassetta, Michael Budd, Mauro Dominick Mordini
  • Patent number: 5243965
    Abstract: A heat producing gas log apparatus includes a blower having an inlet and an outlet for circulating air through the log apparatus. A gas burner has a plurality of openings for emitting combustible gas to produce a flame. At least one air supply channel has an inlet opening and an outlet opening. The inlet opening is disposed at the front and bottom of the heat producing gas log apparatus and receives air, and the outlet opening is in fluid communication with the blower inlet. At least one heat exchanger tube is disposed above at least a portion of the gas burner and has an inlet end and an outlet end. The inlet end is in fluid communication with the blower outlet, and the outlet end is disposed generally coplanar with the inlet opening of the at least one air supply channel at the front and bottom of the apparatus.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Majco Building Specialties, L.P.
    Inventors: Kenneth R. Maitland, Thomas J. Beal, Roy E. Mundy
  • Patent number: 5226590
    Abstract: An adaptor is designed to mount a duty cycling control switch for a furnace or air conditioning system which has flexible duct work. The adaptor includes two opposite cylindrical sections with a central section which includes an arcuate portion and a planar rectangular portion. The planar rectangular portion is tangential to the surfaces of the first and second cylindrical sections. The duty cycling control switch is mounted to this planar portion. Thus, air passing through the duct work will pass through this adaptor altering the temperature of the rectangular plate, thus, altering the temperature of the duty cycling switch causing it to activate.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: July 13, 1993
    Assignee: Raymond K. Davis
    Inventor: Raymond K. Davis
  • Patent number: 4793322
    Abstract: A zero clearance fireplace of the type to be installed inside of a building against or near an outside wall is provided. The box shaped fireplace is provided with four substantially vertical walls, a top wall and a bottom wall. The bottom wall comprises an inner plenum and an outer plenum below the combustion chamber. The rear wall comprises an outer plenum connected to the bottom plenum of the bottom wall, a middle plenum connected to a source of fresh air and connected to the inner plenum of the bottom wall and an inner plenum which is connected to a horizontal exhaust pipe which is inserted through the outside wall and is connected to the combustion chamber through a baffle arrangement.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: December 27, 1988
    Inventors: Ronald J. Shimek, Daniel C. Shimek
  • Patent number: 4777929
    Abstract: A temperature sensitive duty cycling control switch is mounted to a forced air ductless gas or oil heater by a special mounting bracket. The bracket attaches to the front of the heater in the path of the heated airflow. The mounting device is basically a tapered conduit or duct which is held at a distance from the heater so that it does not unduly obstruct the airflow and is tapered to concentrate air generated by the heater onto a plate mounted in front of the duct. The duty cycling control switch is then mounted to this plate and responds to the temperature of the plate. This enables the cycling of the heater burner while the fan continues to operate.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: October 18, 1988
    Assignee: Temper-Sensor, Inc.
    Inventor: Dean Welch
  • Patent number: 4664311
    Abstract: A temperature sensitive duty cycling control switch is mounted to a forced air ductless gas or oil heater by a special mounting bracket. The bracket attaches to the front of the heater in the path of the heated airflow. The mounting device is basically a tapered conduit or duct which is held at a distance from the heater so that it does not unduly obstruct the airflow and is tapered to concentrate air generated by the heater onto a plate mounted in front of the duct. The duty cycling control switch is then mounted to this plate and responds to the temperature of the plate. This enables the cycling of the heater burner while the fan continues to operate.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: May 12, 1987
    Assignee: Duty Cycle, Inc.
    Inventor: Dean Welch
  • Patent number: 4512329
    Abstract: An elongate manifold is supported in the fireplace chamber with the manifold spaced from the back of and above the fireplace floor. Gas logs are supported by a grate adjacent the manifold for heating same. A forced air blower is located behind the manifold between the manifold and the back wall of the fireplace. A vertical heat shield plate is interposed between the manifold and blower. A duct system connects the blower with the manifold and with the room served by the fireplace so as to draw air from the room, force it through the manifold and return it to the room. Thermostatic switch means limits the operation of the blower to times when the heat generated by the fireplace is substantial enough to be useful in forced air heating.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: April 23, 1985
    Inventor: Steven W. Sweet