Charcoal fuel article
US4834774A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Jan 15, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel, and improved fuel articles having a plurality of novel characteristics and having a typical mass density of 0.6 to 1.2 g/cc and a bulk density of 0.2 to 0.4 times the mass density. The greatest distance dg from a point in the fuel article to the nearest point on the nearest one of the upstanding walls is between 0.15 and 0.60 times the height of the fuel article. Charcoal fuel articles of the invention ignite faster than conventional pillow-shaped charcoal fuel articles and deliver substantially more usable cooking heat flux to the cooking surface of a standard charcoal cooker than do conventional pillow-shaped briquettes. The coal article may have a central body portion having a minor circumference, a plurality of fingers projecting from the central body portion, and a hole in the central body portion. The fingers may have finger ends wherein the ratio of the major circumference defined by the finger ends to the minor circumference is at least about 1.25:1. Preferred ratio of surface area to volume of the fuel articles of the invention is between 2.5:1 and 7.0:1. The fuel articles of the invention have a plurality of intersecting walls, which desirably intersect at sharp an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.