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(12) Patent Application Publication (10) Pub. No.: US 2006/0143976 A1 Leong (43) Pub

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(12) Patent Application Publication (10) Pub. No.: US 2006/0143976 A1 Leong (43) Pub US 2006O143976A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2006/0143976 A1 Leong (43) Pub. Date: Jul. 6, 2006 (54) FAST LIGHTING CHARCOAL BRIQUET Publication Classification (76) Inventor: Kenneth Leong, Fairfax, VA (US) (51) Int. Cl. CIOL 5/00 (2006.01) Correspondence Address: (52) U.S. Cl. ................................................................ 44/SSO ROBERTS ABOKHAIR & MARDULA SUTE 1 OOO 118OO SUNRISE VALLEY DRIVE (57) ABSTRACT RESTON,9 VA 20191 (US)US Solid fuel briquets, such as a charcoal briquets for cooking, (21) Appl. No.: 11A324,580 which displays an ashover time of less than ten minutes and 9 a cooking time of over 90 minutes over a variety of shapes (22) Filed: Jan. 3, 2006 are provided. The briquet is defined by an ashover phase of less than about 10 minutes, preferably less than about 6 Related U.S. Application Data minutes and a burn phase of greater than about 90 minutes, preferably two hours and above, with respect to any desired (60) Provisional application No. 60/640.853, filed on Jan. briquet shape. The briquet comprises coal, charcoal, coke, 3, 2005. and oxidizer formulations. US 2006/0143976 A1 Jul. 6, 2006 FAST LIGHTING CHARCOAL BRIOUET provide desired optimal ignition and burning characteristics. Further, such attempts are frequently dependent on the 0001) This application claims the benefit of U.S. Provi user's knowledge of how to pile the briquets before ignition. sional Application No. 60/640,853, filed on Jan. 3, 2005 which is hereby incorporated by reference in its entirety. 0005. It should be noted that very rapid delivery of intense heat does not provide an acceptable combustion BACKGROUND OF THE INVENTION response for cooking purposes. Others have recognized that the surface area to volume ratio of the briquet may affect 0002 This invention relates to the field of charcoal ignition and burn characteristics and should be increased to briquets and other solid fuel compositions in briquets or provide rapid ignition and burning. However, Such ratios other geometric configurations, and more particularly to the have not been employed to design a briquet providing composition and use of the briquets to achieve desired optimal desired ignition and burning characteristics. Lay lighting and burn characteristics with respect to intended ered briquets, having an easy lighting outer layer and long uses such as cooking in general and barbecue or outdoor burning inner layer have been disclosed, but can not be grilling or cooking in particular. The most common commercially manufactured without loss of layer integrity. examples of Such fuel compositions are charcoal briquets which include coal and comminuted charcoal of various 0006 For example, U.S. Pat. No. 5,762,656 provides for vegetable materials, such as wood, hulls, pits, and other a solid fuel briquet, such as a charcoal briquet for cooking, agricultural waste material that is mixed with a binder and where the briquet is made by predensifying a coal portion of rolled, pressed or otherwise formed into briquets. However, the briquet into pellets. The pellets are then blended with the present invention has application to other Solid fuel wood charcoal and any other optional ingredients and com compositions, such as comminuted wood or organic mate pacted into briquets. The resulting briquet contains dense rials that are rolled, pressed or extruded into pellets, discs, coal regions, Surrounded by regions of charcoal and any briquets or other shapes. adjunct briquet ingredients. The briquet is defined by an ignition phase of less than about 18 minutes, preferably less 0003 Charcoal briquets presently available are typically than about 15 minutes and a burn phase of greater than about provided in a “pillow” shape which provides for reasonably 35 minutes, preferably 40 minutes and most preferably 45 satisfactory ease of manufacturing by the Supplier and minutes, with respect to any desired briquet shape. handling by the consumer. However, little attention has been paid to their burning characteristics as related to their 0007 Accordingly, it is an object of the present invention material distribution. As is well known, Such briquets are to provide a briquet which provides desired ignition and typically used for cooking on a grill or the like by preparing burn phase characteristics including a maximum ignition a multiplicity of briquets in a mounded configuration, ignit phase of less than about 10 minutes, followed by a sustained ing their surface by Some ignition means such as lighter burn phase of greater than 90 minutes. fluid, electric heaters, etc., and waiting until ignition of a 0008 Another object of the present invention is to pro significant portion of the briquets has progressed until a vide such a briquet with desired ignition and burn phase majority of the exposed surface is ignited and burning has characteristics regardless of geometric shape, size, or other progressed inwardly toward the interior of the briquet. As manufacturing parameters. burning proceeds inwardly from the surface of the briquet, a gray ash is formed thereon. Thus completion of the initial 0009. Another object of the invention is to provide a “ignition phase' of burning is identifiable by the formation briquet having an “ashover time of less than six minutes. of such visual ash on the briquet, and is defined herein as the 0010 Another object of the invention is to provide a time at which there is 60-80% visual ash formation on the briquet having a Sustained burn phase or cook phase of over briquets. This has been referred to by some as “ashover about two hours. time. Thereafter the briquets are typically spread under a grill or the like for cooking, and they continue to burn with 0011. Other objects of the invention will be clear from the an intense heat throughout a “burn phase' or cook time. For Summary and detailed description appearing herein. maximum performance of Such briquets it is desirable that SUMMARY the ignition phase be rapid so that the briquets may be used for cooking without undue delay, and that the burn phase be 0012. The present invention provides a solid fuel briquet extended to provide adequate cooking time for the use for cooking, such as a charcoal briquet, which displays selected ignition and burn characteristics over a variety of intended. It is further desirable to obtain such beneficial shapes and compositions, as well as a method for forming combustion performance in the most efficient manner with Such a briquet. In accordance with one embodiment, the respect to the amount of fuel consumed. present invention provides briquets or other solid fuel com 0004 As can be seen, the desired effects are rapid “ash position for cooking, comprising: coal, charcoal, and oxi over periods with extended cooking times. There have been dizer, wherein the briquet is characterized as having an little developments related to design of solid fuel articles for ashover time of less than ten minutes and a cooking time of desired combustion performance. There has been some work more than ninety minutes. The briquet optionally comprise at ornamental configuration of fuel briquets, as well as coke. The coke provides various properties including geometrical configuration of briquets to enhance ignition or increased cooking time. The briquets have an ashover time burning by enhancing air Supply, such as provision of of less than six minutes. Preferably, the briquets have an external Surface discontinuities such as ribs, flutes, groups, ashover time of less than five minutes. Most preferably, the slots or the like, and internal openings and passages of briquets have a starting time of less than one minute, and various configurations. Such attempts may enhance com ashover time of less than five minutes and a cooking time of mencement of ignition or overall combustion, but do not over two hours. US 2006/0143976 A1 Jul. 6, 2006 0013 In accordance with one embodiment of the present quets, an alcohol based gel ignition aid is provided. When invention, the briquets comprise coal, charcoal and coke the get system is used, the briquets have a starting time of with a combined weight representing from 55 to 85 percent less than one minute, an ashover time of less than five of the total weight of the briquet. The coal represents from minutes and a cooking time of more than two hours. 50 to 75 percent of the combined weight. The coke is present in an amount of 2-5 percent of the combined weight. The 0017. In another embodiment, the present invention pro oxidizer represents at least fifteen percent of at least one vides a briquet or other Solid fuel composition, comprising alkali metal nitrate composition. When reference is made to (a) from 35 to 45 percent by weight coal having a fixed a metal nitrate, this includes composition including Such a carbon of 65 percent or more, (b) from 16 to 20 percent by nitrate or combinations therewith. In a preferred embodi weight charcoal, (c) from 4 to 6 percent by weight by weight ment the oxidizer comprises at least two alkali metal nitrates coke, (d) from 25 to 30 percent by weight barium nitrate, (e) and is present in an amount of twenty percent or higher by from 4 to 6 percent by weight sodium nitrate, and (f) from weight of the total briquet composition. 3 to 5 percent by weight starch. 0014. In accordance with one embodiment, the present DETAILED DESCRIPTION invention provides briquets or other solid fuel composition for cooking, where the briquets comprise coal having a fixed 0018. In this document, use shall be made of the follow carbon of 65 percent or more, charcoal, and coke. The ing terms of art, which have the meanings as indicated briquets further comprise an oxidizer composition compris below.
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