Hopper Feed Of Solid Fuel Patents (Class 126/501)
  • Patent number: 8727691
    Abstract: A charging device for a shaft furnace, in particular for a blast furnace and a cooperating distribution chute are proposed, where the distribution chute has an elongated chute body providing a sliding channel for bulk material and two chute-mounting members attached laterally to either side of the chute body for mounting the distribution chute to the charging device, the charging device including a mechanism for rotating the distribution chute, the mechanism having a rotatable support rotor with two suspension flanges cooperating with the chute-mounting members of the distribution chute for mounting the distribution chute, where each chute-mounting member of the chute includes a hook-shaped portion that forms a suspension hook for mounting the distribution chute to the suspension flanges, each suspension flange in turn has a support configured for engagement with the hook-shaped portion of the chute along a hook engagement direction, and furthermore, each chute-mounting member includes an abutment portion tha
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: May 20, 2014
    Assignee: Paul Wurth S.A.
    Inventors: Bruno Flora, Jeff Vandivinit, Claude Thinnes
  • Publication number: 20130269678
    Abstract: An anti-scorification oven having a combustor, a hearth in communication with the combustor, an ignition bar in the combustor, a feed pipe in communication with a fuel inlet in the combustor, a feed rotor contained in the feed pipe, a spiral sector formed on the feed rotor, an ash rotor in the combustor and being connected to the feed rotor, the ash for having an ash sector formed on a distal end thereof and a plurality of scorification breaking nails formed on a proximal end thereof, and, an air channel in communication with a plurality of air supply holes defined in the combustor.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 17, 2013
    Inventors: Hongfeng Zhu, Zhuhong Wang
  • Publication number: 20130269677
    Abstract: An anti-scorification oven has a combustion chamber having an ignition bar. A first feed rotor is provided in the combustion chamber and having one spiral sector at each end and a plurality of scorification nails in a middle thereof. A first motor is connected to the first feed rotor. A hopper is in communication with the feed inlet of the combustion chamber. A second feed rotor has a spiral sector thereon. A second motor has an output connected to the second feed rotor. A hearth is above and in communication with the combustion chamber.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 17, 2013
    Applicant: HONGFENG ZHU
    Inventors: Hongfeng Zhu, Zhuhong Wang
  • Publication number: 20130160757
    Abstract: A biomass-burning fireplace assembly with a hopper and an outlet adjacent to the hopper outlet. A fuel metering assembly is adjacent to the hopper outlet and the barrier member. The fuel metering assembly has a fuel metering receptacle that receives the biomass fuel from the hopper. The fuel metering receptacle is moveable relative to the hopper between first and second positions on opposite sides of the barrier member. The barrier member is a physical barrier between the fuel metering receptacle and the hopper outlet when in the second position. A fuel feed assembly receives fuel from the fuel metering receptacle when is in the second position. The fuel feed assembly moves the fuel onto a burn platform assembly coupled to the firebox adjacent to the fuel inlet opening.
    Type: Application
    Filed: August 27, 2012
    Publication date: June 27, 2013
    Applicant: Travis Industries, Inc.
    Inventors: Alan R. Atemboski, Kurt W.F. Rumens, Homer Lee, William Ross Fotheringham, Travis Gallion
  • Patent number: 8297271
    Abstract: This invention provides a portable combustion device that provides a cleaner combustion, reduces the kindling period, and provides a more efficient overall combustion through the use of a fan that directs a predetermined volume of airflow over the combustible fuel—typically wood or similar cellulose-based biological solids. The combustion device has a combustion chamber into which the fuel source is placed for combustion. Mounted to the side of the combustion chamber is a housing that encloses the TEG, which generates an electrical output based on a difference in temperature on opposing sides. Mounted onto the TEG housing and protruding into the combustion chamber through a small passageway is a heat-conducting probe and heat-conducting probe base unit. The opposing side of the TEG is also in contact with a heat sink to remove heat from the TEG device through interaction with ambient air that passes over the vanes from a port located along the side of the TEG housing.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: October 30, 2012
    Assignee: Biolite LLC
    Inventors: Jonathan M. Cedar, Alexander H. Drummond
  • Publication number: 20110073101
    Abstract: Provided are exemplary embodiments, which may include a heating system controller, which may be capable of controlling a heating system to reduce inefficiencies, and/or allow the heating system to operate in a relatively optimum manner.
    Type: Application
    Filed: December 1, 2010
    Publication date: March 31, 2011
    Applicant: FPI FIREPLACE PRODUCTS INTERNATIONAL, LTD.
    Inventors: George H.K. Lau, Robert A. Little, Gordon Arthur Lloyd Coutts, Davinder Gopal Lal, Chi Ming Gavin Tham
  • Publication number: 20100300428
    Abstract: A closed fireplace (1) having a display glass, a hearth provided with a grating (29), an ignition device, an ash receptacle (31), a combustion replacement air supply and a discharge line for fumes. The fireplace also having a flat body chamber (2) in the form of a closed box to be attached to a wall or partially or fully integrated into the wall or into a canopy thereof, the internal volume of the flat body being divided into two flat adjacent chambers for combustion (4) and storage (5), the storage chamber forming a stock of wood (6). The chambers are separated by a dividing and thermally insulating wall (8) for supplying the pre-heated secondary air for the combustion, the bottom of the storage compartment having an inclined ramp ending in the lower part of a hearth (34). The invention is especially suitable for manufactures of fireplaces especially designed for wood fires.
    Type: Application
    Filed: April 6, 2005
    Publication date: December 2, 2010
    Inventors: Gaby-Yves Bald, Frédéric Haas
  • Publication number: 20090320825
    Abstract: The invention relates to a gate device (50) for use in conveying devices (10) for the automatic charging of small-sized solid fuels (3), especially wood pellets, characterized by a chamber (52) which is movable by means of a slide element (53), comprising a filling opening (51) and an outlet opening (56), with the slide element (53) releasing the filling opening (51) for filling the chamber (52) with solid fuel (3) in the filling position while the outlet opening (56) is closed, and the slide element (53) closing the filling opening (51) in a second position by moving the chamber (52) while simultaneously the chamber (52) can automatically be discharged via the outlet opening (56) which is released in the second position.
    Type: Application
    Filed: November 21, 2008
    Publication date: December 31, 2009
    Inventors: Thomas Bauer, Anton Rabler
  • Publication number: 20090293860
    Abstract: Fireplaces suitable for outdoor patio and built-in fireplaces, fire pits and the like that burn biomass solid particulate fuels wherein such fireplaces comprise at least one feed system that is modular which can feed from at least one feed bin onto one or more burn grates. This allows for greater control over aspects such as heat output, energy generation, mixing different varieties of fuels such as flavored pellets or chips when used in a barbecue grill or smoker or other food preparation device, and if desired a wider, more full flame for example where aesthetic considerations are important.
    Type: Application
    Filed: April 29, 2009
    Publication date: December 3, 2009
    Inventor: Timothy Randall Carlson
  • Patent number: 7457689
    Abstract: Apparatus for controlling the operation of a biomass stove utilizes three proportional integral derivative (PID) controllers as part of a closed loop to control the fuel feed rate, the convection fan speed and the combustion fan speed. The first loop controls room temperature, the second loop controls the convection fan speed and the third loop controls the combustion fan. Appropriate temperature readings are utilized for the first and second loop. The third loop, which utilized feedback of the ratio between the heat exchanger temperature to the exhaust temperature, in addition to measuring these temperatures also references a library of look-up tables of such ratios over the entire heat range of the stove that have been correlated to combustion efficiency, as an input. This enables the operator to optimize the heat output for any operating point.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: November 25, 2008
    Assignee: Hestia Heating Products, Inc.
    Inventors: Eric W. Nelson, Marion L. Mast
  • Patent number: 7216645
    Abstract: A wood burning stove is provided. The combustion chamber in which the fire occurs has a baffle plate that is moveable to direct air flow through one of two different pathways from the combustion chamber to the chimney. When in a first position, the baffle plate forces the air and smoke to move through a first pathway; when in a second position, a by-pass pathway is opened, allowing air and smoke to move through a second pathway. The stove can have a door in the front wall, or the top wall, or both walls, to provide access to the combustion chamber.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: May 15, 2007
    Assignee: HNI Technologies Inc.
    Inventors: Daniel S. Henry, Matthew Owings, Monte Jay Weaver, Brian L. Wallace
  • Publication number: 20030226561
    Abstract: A pellet furnace heating apparatus for burning a solid fuel, which pellet furnace heating apparatus in one embodiment includes an enclosure which houses a furnace. A furnace air blower is provided in air communication with the furnace for blowing the burning fuel and increasing heat in the furnace. A hopper is provided for containing the solid fuel, and a fuel delivery mechanism connects the hopper and the furnace for delivering the solid fuel to the furnace. In another embodiment, the pellet furnace heating apparatus includes a burner having a pilot housing and a combustion housing. A fuel delivery mechanism connects a hopper containing the solid fuel with the combustion housing of the burner for delivering the solid fuel to the burner. A furnace air blower is provided in air communication with the pilot housing of the burner for blowing the burning fuel and increasing the heat in the burner.
    Type: Application
    Filed: May 23, 2003
    Publication date: December 11, 2003
    Inventor: Johnny R. Darbonne
  • Publication number: 20020083944
    Abstract: A pellet furnace heating apparatus for burning a solid fuel, which pellet furnace heating apparatus in one embodiment includes an enclosure which houses a furnace. A furnace air blower is provided in air communication with the furnace for blowing the burning fuel and increasing heat in the furnace. A hopper is provided for containing the solid fuel, and a fuel delivery mechanism connects the hopper and the furnace for delivering the solid fuel to the furnace. In another embodiment, the pellet furnace heating apparatus includes a burner having a pilot housing and a combustion housing. A fuel delivery mechanism connects a hopper containing the solid fuel with the combustion housing of the burner for delivering the solid fuel to the burner. A furnace air blower is provided in air communication with the pilot housing of the burner for blowing the burning fuel and increasing the heat in the burner.
    Type: Application
    Filed: September 14, 2001
    Publication date: July 4, 2002
    Inventor: Johnny R. Darbonne
  • Patent number: 6102032
    Abstract: A fire log arrangement for use in conjunction with a combustible fuel source and influences complete combustion of the combustible fuel. The fire log arrangement includes a first log and a second log. The first log and the second log define an interior face. The second log is spaced apart from the first log such that a fuel space is defined therebetween. The fuel space receives the combustible fuel therein and defines a fire chamber at a lower end thereof. The first log interior face and the second log interior face cooperate to induce the combustible fuel to fall inward between the first log and the second log thereby inducing a thorough combustion of the combustible fuel.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: August 15, 2000
    Inventors: David A. Sebby, Eunice J. Sebby
  • Patent number: 6070572
    Abstract: A fireplace for food cooking having a planar member adapted to receive coals dispersed thereon and having two sides extending perpendicular therefrom on opposite sides thereof and a back extending perpendicular therefrom and between the two sides. A fireplace hood is supported on the two sides and the back. The fireplace hood has a duct extending upwardly therefrom. The duct is adapted to allow smoke to discharge from the hood. A baffle plate wall has its ends affixed to the two sides and a back side spaced from the back so as to define a hollow space therewith. The baffle plate wall is positioned between the planar member and the fireplace hood so as to define a combustion chamber and a cooking chamber. The hollow space has an upper opening and a lower opening. The lower opening defining an access mouth adapted to draw the coals in the combustion chamber.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: June 6, 2000
    Assignee: Casagarden S.R.L.
    Inventor: Isidoro Casagrande
  • Patent number: 5680855
    Abstract: An indoor fireplace comprises a base, a feeding device, a combustion chamber, and a ventilation device. The base has a sliding plate provided with a feeding pipe in communication with the combustion chamber. The ventilation device comprises an air drawing apparatus, an air discharging apparatus, and a plurality of air circulation ducts.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: October 28, 1997
    Inventor: Wen-Hsiung Ko
  • Patent number: 5462046
    Abstract: A new and improved fireplace log dispensing apparatus includes a gravity feed chute assembly for receiving a plurality of logs to be burned in a fireplace, and a log dispenser assembly, connected at a bottom of the gravity feed chute assembly, for selectively dispensing logs into the fireplace, preferably onto a grate in the fireplace. The gravity feed chute assembly includes a queue-forming assembly for arranging the plurality of logs into a queue. The log dispenser assembly dispenses one log at a time from the queue onto the fireplace grate. More specifically, the log dispenser assembly includes a number of movable partitions and a stationary wall which define a sequestering chamber for isolating one log at a time from the queue and for moving the isolated log onto the fireplace grate. The movable partitions are in the form of vanes arrayed radially around a central shaft which rotates on bearings. The movable partitions are driven by weight of the queue of logs.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: October 31, 1995
    Inventor: Jacquilyn K. Hannah
  • Patent number: 5331943
    Abstract: A wood pellet stove comprising a body, a burning means, a heat exchanger means, a waste gas exhaust means, a feeding means, a cleaning means and a control system. The burning means includes a seat member, a container, a bottom member, a top member, two first pillars, two second pillars and a inlet pipe. The cleaning means includes three scrape member. Each of scrape member includes a scrape plate, a pipe, a rod and a hoop element.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: July 26, 1994
    Inventor: Wen-Hsiung Ko
  • Patent number: 5183028
    Abstract: A pellet fuel burning apparatus which includes a housing and a display chamber defined within the housing. Window structure enables viewing of the interior of the chamber from outside the housing. Pellet fuel is burned in a zone remote from the display chamber. Flames and gaseous combustion products from the pellet fuel fire are channel upwardly into the display chamber against simulated logs.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: February 2, 1993
    Inventors: Joseph P. Traeger, Mark A. Traeuger, Randolph J. Traeger
  • Patent number: 5137012
    Abstract: A pellet burning stove includes a firebox defining a combustion chamber, a pellet burner located within the firebox, a feed system for moving combustible pellets to the pellet burner and an ash pan for receiving ashes from the pellet burner. The pellet burner includes a horizontal surface having an elongated combustion zone defined by a plurality of primary air openings in the burner surface, and a feed surface adjacent to the combustion zone. The feed system moves a thin layer of combustible pellets across the feed surface into the combustion zone. An air plenum surrounding the feed surface of the pellet burner supplies combustion air upwardly through the primary air opening and the layer of combustible pellets. The air plenum maintains the pellets relatively cool until they reach the combustion zone. Ashes drop off an edge of the burner surface into an ash pan. An artificial log set and a log support member fabricated of refractory fiber material define a secondary combustion cavity above the pellet burner.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: August 11, 1992
    Assignee: Vermont Castings, Inc.
    Inventors: William W. Crossman, Jr., Derik K. Andors, Richard S. Blackburn, Allan S. Wilker, John H. Guest
  • Patent number: 5014682
    Abstract: A mantel device for storing and dispensing fuel for insert-type pellet stoves having a continuous feed hopper. A pellet stove mantel has a hopper inside the mantel. The mantel hopper is attachable to the continuous feed hopper of the pallet stove and provides hopper to hopper fuel feed. The mantel device has the appearance of a zero clearance fireplace including a flush mounted mantel, a pedestal lift attached to the main frame of the mantel and a hearth mat is fastened to the main frame of the mantel and the pedestal lift. The mantel hopper is located in the upper portion of the mantel and has a plurality of angled sides forming a funnel. The mantel also has a cap at the top with an opening covered by a lid which provides an access to the hopper.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: May 14, 1991
    Inventors: Steven J. Payson, John C. Lee
  • Patent number: 4865016
    Abstract: An automatic log feeder for fireplaces is provided which includes an upper horizontal conveyor, an intermediate carriage mechanism and a lower horizontal conveyor. The upper horizontal conveyor is used to store a plurality of logs outside of a building and to advance individual logs through the feeder as desired. Through use of a unique guide rail and rail following bracket the intermediate carriage mechanism receives individual logs from the upper conveyor and lowers them to the lower conveyor while simultaneously changing orientation of the individual logs by 90.degree. before depositing them onto the lower conveyor. The lower conveyor is adapted to automatically advance individual logs into the fireplace in a cantilevered fashion before gently tipping them onto the fireplace grating, or, allows for manual removal of the log from the lower conveyor through an access door extending to the interior of a building.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: September 12, 1989
    Inventor: Joseph L. Landry