Title of Invention

AN OVEN

Abstract An oven comprising an air passage having an open top, but closed at its base, rear and sides, except for a first opening at one end and. ..cond narro\J,pr opening at thp other end thereof. A removable grate is sLlpported ov.r the op.n top 01 said passage and outllJardly diverging members, on either side of the grate, are provided, ..id members, I eaV ing a gap therebetl"een above the first opening, and enabling a culinary utensil to be recei ved thereon.. Heat insLl1 ation means are also provided for minimising peripheral radiation of heat.
Full Text

This Invention relates to an oven.
An object of this invention is to propose an oven having good conbustion efficiency acceptably free from pollution caused by gases emitted froa unburnt or partly burnt fuel.
Another object of this invention is to propose an oven providing sufficient manual access for easy cleaning and maintenance.
A further object of this invention is to propose an oven wherein radiation of heat from the sides and rear of thereof are acceptably low.
Yet another object of this invention is to propose an oven wherein the entry of atmospheric air into the zone of combustion and the exit of the gases of conbustion therefrom are maintained as a continuous, naturally occurring, flow, from one end of the oven to the other.
Such of the other objects and resulting advantages of this invention as have not been, hereinabove expressly stated will be apparent from the further description thereof given hereunder.

The oven, according to this invention, comprises an air passage having an open top, but closed at its base, rear and sides, except for a first opening at one end and a second narrower opening at the other end thereof; a removable grate supported over the open top of said passage; outwardly diverging members, on either side of the grate, said members, leaving a gap therebetween above the first opening, and enabling a culihary utensil to be received thereon; and heat insulation means provided for minimising peripheral radiation of heat*
This invention will now be described with reference to the accompanying drawings which illustrate, by way of example, one of various possible embodiments of the oven proposed herein, wherein
Fig.l illustrates the embodiment in perspective
view
Fig.2 illustrates the embodiment in front view
and Fig.3 illustrates the embodiment in top plan view.

The lower portion of the oven is provided with an air passage P open at the top at D, but closed at its base B, rear R and sides S, except for a first opening Ol at one end and a second narrower opening 02 at the other.
A removable grate 6 is disposed over the open top of said passage P. The grate is held in place on supports F, preferably in the form of ledges, provided at the region of the open top of the passage P.
The said upper portion of the oven, adjacent the grate and on either side thereof, is provided with outwardly diverging members N, leaving a gap E therebetween. The gap E is situated above the first opening 01. The opening 02, in the enbodiment Illustrated, will be seen to be located above the level of the members.
A metal plate N (shown in Fig.2) is intended for being placed over, and supported on, the said members M. The plate N is intended for receiving food substances to be cooked. Instead of the plate N other culinary utensils can be supported on the said members M, such as, a

cauldron, a sauce pan and so on. The plate N is suitable for making doses and the like. The gap E between the members M allows atmospheric air to have access to the space above the grate and below the plate or other culinary utensil.
Known heat insulation means are provided for the upper and lower portions of the oven, to reduce heat radiation. These means can be provided on the outer surfaces of the sides and rear of the passage P and/or on the outer surfaces of the members H, as coatings or layers of heat insulation substances.
It is also possible to have such insulation means provided beneath the outer surfaces of the sides and rear of the passage P and/or beneath the outer surfaces of the members M, such as embedded heat insulation substances provided during manufacture•
AS stated above, the combustion efficiency is good and therefore less smoke pollution. The air passage P maintains a natural flow of air from atmosphere. from opening 01 to opening 02. This

flow is naturally maintained by the neat developed within the passage wherein fuel e.g. fire wood, is burnt. Good air flow thus maintained aids god combustion. The narrower opening 02 assists in a controlled travel of air and evacuation of combustion gases.
The structure of the oven will also be seen to be such as to provide sufficient manual access for easy cleaning and maintenance. The flame in the passage P rises through the open top and through the perforations in the grate to heat the culinary utensil placed on the members M. The divergent configuration of the members M results in good distribution and dissipation of heat.
The oven will, preferably, be provided with a surrounding framework J, at the sides and rear, to avoid any part of the body of the user coming into contact with any hot part of the oven.
The terms and expressions in this specification are of description and not of limitation, there being no intention in the use of such terms and expressions of excluding any equivalents of the features illustrated and described, but it is

understood that various other embodiments of the oven proposed herein are possible, without departing from the scope and ambit of this invention.



We Claim:
1. An oven comprising an air passage having an open top, but closed at its base, rear and sides, except for a first opening at one end and a second narrower opening at the other end thereof; a removable grate supported over the open top of said passage; outwardly diverging members, on either side of the grate, said members, leaving a gap therebetween above the first opening, and enabling a culinary utensil to be received thereon; and heat insulation means provided for minimising peripheral radiation of heat.
2. An oven as claimed in Claim 1 wherein the second narrower opening is located above the level of the said members.
3. An oven as claimed in Claim 1 or Claim 2 wherein the insulation means are provided on the outer surface of the sides and rear of the said passage.
4. An oven as claimed in any one of the preceding Claims wherein the insulation means are provided beneath the outer surface of the sides

and rear of the said passage.
5. An oven as claimed in any one of the
preceding Claims wherein the Insulation means are
provided on the outer surface of each of the said
members•
6. An oven as claimed In any one of the
preceding Claims wherein the Insulation means are
provided beneath the outer surface of each of the
said members.
7. An oven as claimed in any one of the
preceding Claims wherein a framework surrounds the
oven at Its sides and rear.
8. An oven as claimed In any one of the
preceding Claims wherein the grate Is supported on
ledges.
9. An oven substantially as herein
described with reference to, and as Illustrated In


Documents:

856-mas-1999-abstract.pdf

856-mas-1999-claims duplicate.pdf

856-mas-1999-claims original.pdf

856-mas-1999-correspondance po.pdf

856-mas-1999-correspondance others.pdf

856-mas-1999-description complete duplicate.pdf

856-mas-1999-description complete original.pdf

856-mas-1999-drawings.pdf

856-mas-1999-form 1.pdf

856-mas-1999-form 19.pdf

856-mas-1999-form 26.pdf


Patent Number 206800
Indian Patent Application Number 856/MAS/1999
PG Journal Number 26/2007
Publication Date 29-Jun-2007
Grant Date 11-May-2007
Date of Filing 30-Aug-1999
Name of Patentee SHRI. SUBBIAH MANI
Applicant Address 52 GANDHINAGAR 11 STREET, PUDUKKOTTAI.
Inventors:
# Inventor's Name Inventor's Address
1 SUBBIAH MANI 52 GANDHINAGAR 11 STREET, PUDUKKOTTAI.
PCT International Classification Number A4TJ39/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA