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Publication numberUS20060102162 A1
Publication typeApplication
Application numberUS 10/991,734
Publication dateMay 18, 2006
Filing dateNov 18, 2004
Priority dateNov 18, 2004
Publication number10991734, 991734, US 2006/0102162 A1, US 2006/102162 A1, US 20060102162 A1, US 20060102162A1, US 2006102162 A1, US 2006102162A1, US-A1-20060102162, US-A1-2006102162, US2006/0102162A1, US2006/102162A1, US20060102162 A1, US20060102162A1, US2006102162 A1, US2006102162A1
InventorsDick Chiang
Original AssigneeDick Chiang
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Charcoal roaster
US 20060102162 A1
Abstract
A. charcoal roaster has a stand having a top and an ash bin, a bottommost layer detachably mounted on the top of the stand, at least one containing layer detachably mounted on the bottommost layer and a grill assembly detachably mounted on the at least one containing layer. The bottommost layer and the at least one containing layer individually have multiple ventilating holes so fresh air is drawn into each layer to make charcoal burn efficiently without having to be stirred even when charcoal is stacked thickly. Each containing layer and the bottommost layer directs fresh air into deep places inside the charcoal roaster. Moreover, by adding or removing containing layers, the quantity of charcoal is adjustable.
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Claims(5)
1. A charcoal roaster comprising:
a stand (10) having
a top; and
an ash bin (12) mounted in the stand (10) near the top;
a bottommost layer (20) mounted on the top of the stand (10), being a shallow bowl and having
a bottom (22);
a grating (222) formed on the bottom (22); and
an upper inclined wall (24) extending inward and having multiple ventilating holes (242);
at least one containing layer (30) mounted concentrically on the bottommost layer (20), and each one of the at least one containing layer (30) being an annular ring and having an upper inclined wall (32) and a lower inclined wall (34), both walls extending inward, wherein the at least one containing layer (30) individually has multiple ventilating holes (322) defined in the upper inclined wall (32) of the at least one containing layer (30); and
a grill assembly (40) detachably mounted on the at least one containing layer (30).
2. The charcoal roaster as claimed in claim 1, wherein the charcoal roaster has at least two containing layers (30) and each one of the at least two containing layers (30) is larger than an adjacent one below;
the upper inclined wall (32) extends inward and upward and has a top opening and a diameter defined at the top opening;
the lower inclined wall (34) extends inward and downward and has a bottom opening and a diameter defined at the bottom opening;
wherein, the diameter of the lower inclined wall (34) is smaller than the diameter of the upper inclined wall (32) on an adjacent containing layer (30) below so that part of the lower inclined wall (34) of each containing layer (30) extends into an inner space within the adjacent containing layer (30) below to guide air between two adjacent containing layers (30).
3. The charcoal roaster as claimed in claim 1, wherein the stand (10) has
a pedestal (102); and
a conical body (104) mounted on the pedestal (102) and having an open top and multiple ventilating holes (106) defined through the conical body (104).
4. The charcoal roaster as claimed in claim 2, wherein the stand (10) has
a pedestal (102); and
a conical body (104) mounted on the pedestal (102) and having an open top and multiple ventilating holes (106) defined through the conical body (104).
5. The charcoal roaster as claimed in claim 4, wherein the grill assembly (40) comprises:
a base (41) having a lower inclined wall extending into a topmost one of the at least one containing layer (30);
a grill (42) detachably mounted on the base (41) and having a handle; and
a cover (44) detachably mounted on the grill (42).
Description
    BACKGROUND OF THE INVENTION
  • [0001]
    1. Field of the Invention
  • [0002]
    The present invention relates to a roaster and more particularly to a charcoal roaster that burns charcoal efficiently.
  • [0003]
    2. Description of Related Art
  • [0004]
    With reference to FIG. 5, a conventional charcoal roaster substantially comprises a stand (50), a charcoal container (52) and a grill (54). The charcoal container (52) is a basin with a bottom and mounted on the stand (50) to hold charcoal. The grill (54) is mounted on the charcoal container (52) over the charcoal. Food (not shown) is placed on the grill (54), and the charcoal burns to provide heat to roast the food. However, some charcoal stacked inside the charcoal container (52) does not ignite easily and does not spread fire quickly to other charcoal especially when the charcoal is covered at the bottom of the basin. Therefore, users have to stir the stacked charcoal occasionally to make the charcoal burn efficiently.
  • [0005]
    The present invention has arisen to mitigate or obviate the disadvantages of the conventional charcoal roaster.
  • SUMMARY OF THE INVENTION
  • [0006]
    The main objective of the present invention is to provide an improved charcoal roaster that burns charcoal efficiently without having to stir the charcoal.
  • [0007]
    To achieve the foregoing objective, the charcoal roaster of the present invention comprises a stand, a bottommost layer, at least one containing layer and a grill assembly. The stand has a top and an ash bin. The bottommost layer is mounted on the top of the stand, is a shallow bowl and has a bottom, a grating and an upper inclined wall. The grating is formed on the bottom, and the upper inclined wall extends inward and has multiple ventilating holes.
  • [0008]
    The at least one containing layer is mounted concentrically on the bottommost layer, and each containing layer is an annular ring. and has an upper inclined wall and lower inclined wall. Both walls extend inward, and the upper inclined wall has multiple ventilating holes. The grill assembly is mounted detachably on the at least one containing layer. By adding or removing containing layers on the stand, the quantity of charcoal is adjustable. Moreover, the multiple ventilating holes in each containing layer and the bottommost layer allow air to be drawn into the roaster at all levels. Therefore, the charcoal in the charcoal roaster burns efficiently without needing to be stirred.
  • [0009]
    Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0010]
    FIG. 1 is an exploded perspective view of a charcoal roaster in accordance with the present invention;
  • [0011]
    FIG. 2 is a perspective view of the charcoal roaster in FIG. 1;
  • [0012]
    FIG. 3 is an enlarged operational cross-sectional side view of inclined walls in the charcoal roaster in FIG. 2;
  • [0013]
    FIG. 4 is an operational side view in partial section of the charcoal roaster in FIG. 1, wherein air enters each containing layer to make the charcoal burn efficiently; and
  • [0014]
    FIG. 5 is an operational cross-sectional side view of in partial section of a conventional charcoal roaster in accordance with the prior art.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0015]
    A charcoal roaster in accordance with the present invention comprises a stand, a bottommost layer, at least one containing layer and a grill assembly. The stand has a top and an ash bin. The bottommost layer is mounted on the top of the stand, is a shallow bowl and has a bottom, a grating and an upper inclined wall. The grating is formed on the bottom, and the upper inclined wall extends inward and has multiple ventilating holes. The at least one containing layer is mounted concentrically on the bottommost layer, and each containing layer is an annular ring and has an upper inclined wall and a lower inclined wall. Both walls extend inward, and the upper inclined wall has multiple ventilating holes. The grill assembly is mounted detachably on the at least one containing layer.
  • [0016]
    By adding or removing containing layers on the stand, the quantity of charcoal is adjustable. Moreover, the multiple ventilating holes in each containing layer and the bottommost layer allow air to be drawn into the roaster at all levels. Therefore, the charcoal in the charcoal roaster burns efficiently without needing to be stirred.
  • [0017]
    With reference to FIGS. 1 and 2, a preferred embodiment of the charcoal roaster in accordance with the present invention comprises a stand (10), a bottommost layer (20), at least one containing layer (30) and a grill assembly (40).
  • [0018]
    The stand (10) has a round pedestal (102), a conical body (104) and an ash bin (12). The conical body (104) is mounted on the round pedestal (102), has an open top and multiple optional ventilating holes (106) and is tapered toward the open top. The multiple ventilating holes (106) are near the open top. The ash bin (12) is mounted detachably inside the cone body (104) at the open top.
  • [0019]
    The bottommost layer (20) is mounted on the open top of the stand (10), is a shallow bowl and has a bottom (22) and an upper inclined wall (24). The bottom (22) is round and has a center and a grating (222). The grating (222) is mounted in the center of the bottom (22) to allow ash to fall into the ash bin (12) in the stand (10) after the charcoal burns. The upper inclined wall (24) evenly extends inward and upward and has a top opening and multiple ventilating holes (242). The top opening has a diameter. The multiple ventilating holes (242) are evenly spaced around the upper inclined wall (24).
  • [0020]
    The at least one containing layer (30) is mounted over the bottommost layer (20) one by one, and each containing layer (30) is larger than the adjacent containing layer (30) below. Each containing layer (30) is also an annular ring similar to the shallow bowl of the bottommost layer (20) except for the grating (222) in the bottom (22) and has an upper inclined wall (32), a lower inclined wall (34) and an inner space. The upper inclined wall (32) extends inward and upward and has multiple ventilating holes (322) and a top opening that has a diameter. The lower inclined wall (34) extends inward and downward and has a bottom opening that has a diametersmaller than the diameter of the upper inclined wall (32) on an adjacent containing layer (30) below. With regard to the lowest containing layer (30), the diameter of the lower inclined wall (34) is smaller than the diameter of the upper inclined wall (24) of the bottommost layer (20). Therefore, part of the lower inclined wall (34) of each containing layer (30) extends into the inner space within the adjacent containing layer (30) below to guide air flowing between adjacent containing layers (30).
  • [0021]
    The grill assembly (40) is mounted detachably on a topmost containing layer (30) and essentially comprises a base (41), a grill (42) and a cover (44). The base (41) has a lower inclined wall. The lower inclined wall of the base (41) extends into the topmost containing layer (30) and preferably has a bottom opening with a diameter. Therefore, part of the lower inclined wall (34) extends into the inner space in the topmost containing layer (30) to guide air flowing through the ventilating holes (322) in the containing layer (30). The grill (42) is detachably mounted on the base (41) and has a handle. The cover (44) is detachably mounted on the grill (42) to hold heat to roast food on the grill (42).
  • [0022]
    With reference to FIGS. 3 and 4, when the charcoal roaster is used, charcoal is stacked inside the at least one containing layer (30) and the bottommost layer (20) and into the base (41) of the grill assembly (40). After igniting some charcoal inside the roaster, fresh air automatically enters all the containing layers (30) and the bottommost layer (20) because heat generated by the burning charcoal raises and draw fresh air through the multiple ventilating holes (242, 322). Therefore, all charcoal in each layer (20, 30) is exposed to plenty of fresh air to make the combustion complete. Moreover, the lower inclined walls on each containing layer (30) direct the fresh air entering initially downward so deep places are exposed to fresh air.
  • [0023]
    The charcoal roaster as described has the following advantages:
  • [0024]
    1. Adding or removing containing layers on the stand makes the quantity of charcoal adjustable.
  • [0025]
    2. The multiple ventilating holes in each containing layer and the bottommost layer allow air entering the charcoal roaster to contact the charcoal in each containing layer and particularly to contact the charcoal deep in the bottommost layer. Therefore, the charcoal in the charcoal roaster burns efficiently without needing to be stirred.
  • [0026]
    3. Unlike igniting the charcoal before filling, the charcoal can be placed into the containing layers without preheating and is ignited quickly because the multiple ventilating holes allow the air flowing through the charcoal roaster entirely. Therefore, barbecuing food with the present charcoal roaster does not waste time in waiting of igniting the charcoal.
  • [0027]
    Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3327698 *Oct 21, 1965Jun 27, 1967Leslie Freeland HCamp cook stove
US3987719 *Jul 23, 1973Oct 26, 1976Leonard KianCooking utensil
US4332188 *Sep 29, 1977Jun 1, 1982Rhear Frances YCombination cooker
US4909235 *Apr 7, 1989Mar 20, 1990Richard BoetckerCooking stove
US6543435 *Jun 27, 2002Apr 8, 2003Ennova CorporationCollapsible multi-level barbeque grill, oven and smoker system
US6981497 *May 27, 2003Jan 3, 2006Original Ideas, IncPortable cooking apparatus
US20050121020 *Apr 19, 2004Jun 9, 2005Mclemore DonCooking apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7900624 *Feb 25, 2008Mar 8, 2011Original Ideas, IncBarbecue cooking apparatus with ventilation system
US20090107481 *Feb 25, 2008Apr 30, 2009Demars RobertBarbecue cooking apparatus with ventilation system
US20140377431 *Jun 24, 2013Dec 25, 2014Bijan M. KazerouniSpinning grill apparatus and method
USD777667 *Jan 21, 2014Jan 31, 2017Biolite LlcPortable combustion device utilizing thermoelectrical generation
Classifications
U.S. Classification126/25.00R, 126/9.00R, 126/25.00B
International ClassificationF24B3/00
Cooperative ClassificationA47J37/0704
European ClassificationA47J37/07B