CA2852290A1 - Quick fire cube - Google Patents

Abstract

A fire-starter cube has a combustible container having a bottom, four sides and a lid. The combustible container houses a crib of stacked wooden slats that are arranged around a central chimney. The sides of the combustible container have door vents that can be opened and closed, configured to admit air, and a knock-out on the lid configured to permit the exhaust of hot gases. The removal of the knock-out on the lid provides an opening to the chimney, wherein as the cube burns, cooler air enters the door vents and exits from the top opening, and wherein the air forms a vortex within the chimney. The fire-starter cube has wooden shavings within the chimney. Each of the door vents can be opened on the sides of the container and the opening of the door vents is selectable by a user.

Description

Quick Fire Cube May 23 2014 The Quick Fire Cube (QFC) was designed to be a compact, easy to use source for igniting a fire in a woodstove, fire place or campfires.
It is constructed using eighteen (18) dried pine slats, measuring 2 7/8" by 3/4" by Yl" (fig. 2), which are stacked two slats per round, in opposite directions (fig.9) creating a crib like structure inside a 3" by 3" recycled cardboard container (fig.1). This stacking system creates a void in the centre which is filled with dry pine shavings (fig.8). The cardboard container has a 1" knock out (fig. 3) in the top, which acts like a chimney and four perforated door like openings, one in each side of the cardboard container (fig. 4,5,6,7) acting as vents. These vents and chimney openings allow for a constant flow of air creating a vortex effect in and around the stacked slats and pine shavings. This produces an intense hot flame which will burn for approximately 15 minutes allowing the kindling that is placed around the QFC to ignite.
The pine slats are held together with brad nails in all four corners to maintain the integrity of the cube.
Ignition of the QFC is accomplished by using a standard wooden match. Once the match is fully involved, simply drop the match into the top of the chimney opening (fig. 3). The draft effect produced by the chimney opening and the four side vents ensures a rapid burning of the shavings and the ignition of the pine slats.

Quick Fire Cube (Legend) May 23 2014 1) Recycled Cardboard Container 3" by 3" by 3"

2) Pine Slats 2 7/8" by %" by 1A"

3) 1" Round Chimney Knock Out

4) Right Side Door Vent

5) Left Side Door Vent

6) Front Side Door Vent

7) Back Side Door Vent

8) Dried Pine Shavings

9) Stacked Pine Slats

Claims

Claims The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows.
The Quick Fire Cube's (QFC) design takes advantage of the vortex effect created initially by the release of hot gases during the initial burn period. That, combined with the cooler fresh air being drawn in through the opening in the top of the QFC and the crib like structure of the combustible material and the extreme temperature difference between these two gases forces the hotter carbon rich gas to the sides of the QFC.
With the opening of the side vent doors, a circular air flow is introduced which completes the requirements for a controlled Fire Whirl burn. It is because of this vortex effect that the consumption of the combustible material produces a burn that is three to five times hotter than an open burn.
Complete combustion of the QFC is achieved in 10 to 15 minutes, leaving a minimal of residue, while producing a hot, intense burn.
There are no accelerants used in the QFC, which offers a toxic free burn.
The use of natural and 100% recycled materials reduces environmental impact.
Multiple units can be combined for a larger fire starting application.
Multiple Uses - Fireplace Starter - Wood Stove Starter - Camp Fire Starter - Cooking Source - Emergency Heat Source