US20140116411A1

US20140116411A1 - Pullout firebox drawer

Info

Publication number: US20140116411A1
Application number: US13/666,920
Authority: US
Inventors: Timothy Jewett; Dave B. Straley; Jacques P. Lindstrom
Original assignee: Direct Global Sales Inc
Current assignee: Direct Global Sales Inc
Priority date: 2012-11-01
Filing date: 2012-11-01
Publication date: 2014-05-01

Abstract

A wood-burning stove includes side-walls joined together in an airtight manner to form a firebox and a heat chamber there above. The firebox in this wood-burning stove is a drawer on rollers/sliders and pulls out for ease of placing fuel exactly where the operator wants it and severely decreases the risk of injury or burning. This is accomplished by not having to place the fuel into the enclosed cavity of the wood-burning stove increasing risk of injury and decreasing the accuracy of where you would like to place the fuel in the firebox. In addition there are knobs that control the airflow into the firebox that controls the combustion giving the operator control over the temperature in the firebox and allows the fuel to burn more efficiently.

Description


U.S. Patent Documents

2,345,519	March 1944	Wingert
4,111,181	September 1978	Canney
4,117,824	October 1978	McIntire et al.
4,141,336	February 1979	Fitch
4,184,473	January 1980	McIntire et al.
4,200,086	April 1980	Kolb
4,207,860	June 1980	Schrock
4,232,650	November 1980	Frank
4,265,213	May 1981	Gorsuch et al.
4,360,000	November 1982	Down
4,392,477	July 1983	Milligan

BACKGROUND OF THE INVENTION

The present invention relates to a stove apparatus for the combustion of solid fuel, such as wood logs, to provide heat for a dwelling, cooking of food, or the like and, more particularly, to such a stove apparatus having walls joined together in a substantially airtight manner to form a firebox and heat chamber there above with an air-supply manifold provided with a plurality of spaced-apart, air-discharge openings to direct streams of heated air toward the fuel while supported in the firebox for the combustion process. The present invention further provides an improved access door to permit easier loading of fuel into the firebox. This is accomplished by putting the entire firebox on rails or rollers so the entire firebox can be pulled out as a drawer. This makes loading fuel into the said firebox much safer from burns and easier to place the fuel in the exact spot desired.
Known designs for fireboxes failed to provide adequate control of the air supply to control the combustion process. Slide or rotary plate members were usually positioned at a convenient location sometimes dictated only to satisfy the aesthetic appearance for controlling a supply of air. One or more logs used for fuel are usually supported on a grating or directly on a fire-resistant floor space at a site which is distally spaced sometimes by as much as 10-12 inches from the opening provided to deliver the necessary air for combustion. Since the space within the firebox walls is usually subject to a chimney draft, control of the air supply for the combustion process was erratic and fuel was consumed at a wastefully-excessive rate.
The present invention is based, in part, on the discovery that not only is it necessary to control the quantities of air which are supplied into a wood stove but also that the air supplies must be conducted to a point closely adjacent the supply of wood fuel for an effective control of the combustion process. A wood stove of this type must, therefore, be not only of robust construction for longevity but also the walls must be joined together in a substantially airtight manner. To achieve an airtight pullout firebox drawer we have provided two heavy-duty clamps to effectively make the firebox airtight when closed. These clamps are very similar to the ones used on conventional wood burning stoves, only instead of only having one clamp and hinges on the opposing side there are two clamps one on either side of the drawer.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a stove apparatus for the combustion of solid fuel, such as wood logs, while supported in a firebox formed by surrounding stove walls wherein the stove apparatus includes an air-supply manifold having a plurality of spaced-apart, air-discharge openings directed toward the fuel; the manifold extending through an opening in one of the stove walls to conduct the flow of air in or in close proximity to the firebox so that conductive heating of the air in the manifold occurs for the discharge of heated streams of air through the openings toward the fuel.
It is a further object of the present invention to provide a stove apparatus for the combustion of solid fuel such as wood logs wherein stove walls include a pullout firebox drawer. Said pullout firebox drawer decreases the risk of injury of being burned while attempting to place fuel in the firebox. The operator of a pullout firebox drawer does not need to place any part of their body into the oven cavity drastically decreasing the risk of injury. Also this makes placing fuel in an exact spot in the firebox that much easier because you have an open area to place the fuel in any location in the firebox not just the spots you can reach inside a conventional wood-burning stove.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a front/right side perspective view.

FIG. 1B is a rear/right side perspective view.

FIG. 1C is a front/left side perspective view.

FIG. ID is a rear/left side perspective view.

FIG. 2 is an exploded view sans enclosing box.

FIG. 3 is a top view

FIG. 3A is a sectional view through center of retaining pin 114

FIG. 4A is a rear/left perspective view of the firebox

FIG. 4B is a front/right perspective view of the firebox

FIG. X

DETAILED DESCRIPTION OF THE DRAWINGS

In the description that follows, like parts are marked throughout the specification and drawings with the same reference numerals, respectively. The drawing figures might not be to scale, and certain components can be shown in generalized or schematic form and identified by commercial designations in the interest of clarity and conciseness.
Referring to the drawings the main fuel tray assembly without the main firebox is identified by numeral 100. The main fuel tray 102 is where the fuel will be burned and is where the fuel grate 104 sits. The ash tray handle 106 gives the operator of the firebox a sturdy handle to grasp and pull the firebox out. 106 the ash tray handle is connected to the ash tray pan 108. The ash tray pan collects the burnt ashes from 102 the main fuel tray and is where the main fuel tray sits. The mounting feet 112 sit flush with 108 the ash tray pan and sit on top of and welded to 110 the wire rack. The mounting pin 114 slides through 112 the mounting feet and secures 112 the mounting feet to 108 the ash tray pan and to 102 the main fuel tray. Numeral 116 show the large oval shaped vent holes in 102 the main fuel tray and allow for better air flow into the bottom of fire thus creating more efficient fire. Numeral 118 shows the large oval holes in 104 the main fuel grate to increase air flow to the fire which increases the efficiency of the fire and to allow for ash to fall down into 108 the ash tray pan. Numeral 120 shows the small circular holes in 104 the main fuel grate to allow for even more airflow into the fire. 122 the rack stop, is the device that keeps the fire box from sliding all of the way out of the housing or oven. 400 the firebox has a generally rectangular shape and is comprised of three walls and a large hole in the front to allow for 100 the main fuel tray assembly to be pulled out of.
Numeral 200 shows an exploded view of the fuel tray assembly. The fire starter grate 202 sits inside of 102 the main fuel tray and approximately three inches below 104 the main fuel grate. 202 the fire starter grate is where kindling and other suitable materials rest upon to ignite the fuel on 104 the main fuel grate. Numeral 204 shows the pin holes in 202 the fire starter grate to secure 202 to 206 the fire starter grate supports, and then secured to 208 pin holes in the bottom of 108 the ash tray pan. 210 the pin holes in 112 the mounting feet allow 114 the mounting pin to slide through. 212 the pin holes in 102 the main fuel tray also allows for 114 the mounting pin to slide through. 214 the pin holes in 108 that allows 114 the mounting pin to slide through to secure the mounting to 112 the mounting feet, 108 the ash tray pan, and 102 the main fuel tray so the components are all secure as one piece. Numeral 216 shows the small circular holes in 202 the fire starter grate and allow for increased air flow into the fire. 218 is the pin hole in 114 the mounting pin the secure the mounting pin from sliding out. 400 is the firebox assembly.

Claims

1. A system for cooking from a firebox comprising of:

a. Hinged doors that have to be opened to access the combustion area of firebox

b. Firebox is placed on rollers/sliders

c. Firebox can be pulled out for fuel or wood

2. The system of claim 1, wherein solid drawer front with a solid handle and two locking clamps to make the firebox airtight

3. The system of claim 1, makes adding fuel or wood easier and safer

4. The system of claim 1, allows for operator ability to position fuel or would in exact position without use of tools

5. The system of claim 1, eliminates risk of operator being burned as operator does not have to reach into firebox

6. The system of claim 1 drawer can be on sliding glides or rollers to allow the firebox drawer to be pulled out such as in any other drawer configuration