U.S. patent number 3,788,301 [Application Number 05/276,602] was granted by the patent office on 1974-01-29 for smoke generator.
Invention is credited to Raymond M. Terry.
United States Patent |
3,788,301 |
Terry |
January 29, 1974 |
SMOKE GENERATOR
Abstract
The smoke generator comprises a plurality of concentric
chambers, the innermost of which fuel is provided to burn to
produce aeromatic smoke and the outer chambers being operable to
contain smoke produced by the fuel.
Inventors: |
Terry; Raymond M. (San Leandro,
CA) |
Family
ID: |
23057325 |
Appl.
No.: |
05/276,602 |
Filed: |
July 31, 1972 |
Current U.S.
Class: |
126/59.5;
99/482 |
Current CPC
Class: |
A23B
4/0523 (20130101); A01G 13/06 (20130101) |
Current International
Class: |
A23B
4/052 (20060101); A23B 4/044 (20060101); A01G
13/06 (20060101); A01g 013/06 () |
Field of
Search: |
;126/59.5
;99/467,480,482 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Wayner; William E.
Assistant Examiner: Tapolcai, Jr.; William E.
Attorney, Agent or Firm: Kraft; John W.
Claims
I claim:
1. A smoke generator comprising
a fuel chamber including a solid, lower cylindrical wall portion
and a porous upper cylindrical wall portion fastened to the
uppermost terminal end of said lower wall portion, and a vent in
the lowermost terminal wall of said generator;
an inner chip chmaber including a solid cylindrical wall disposed
distally concentrically about said fuel chamber cylindrical wall,
said inner chip chamber including a cylindrical grating at the
lowermost terminal end of said chip chamber cylindrical wall;
and
an outer chamber including a cylindrical wall disposed distally
concentrically about said inner chip chamber inner wall, said
lowermost terminal wall being fastened to the lower terminal end of
said outer chip chamber cylindrical wall, and including a cover
attachably disposed at the uppermost terminal end of said outer
cylindrical wall, said cover including a duct to communicate smoke
from said smoke generator.
2. The apparatus of claim 1 including control means disposed in
said duct to control the outflow of smoke from said smoke
generator.
3. The apparatus of claim 1 wherein said lowermost terminal wall is
disposed distally from the lowermost end of said outer cylindrical
wall of said outer chamber, and wherein the rim-like portion
between said lowermost terminal wall and the lowermost terminal end
of said outer chamber cylindircal wall having the vents including a
plurality of holes.
Description
FIELD OF INVENTION
The present invention relates to food preparation apparatus and,
more particularly to smoking apparatus.
DESCRIPTION OF THE PRIOR ART
Means commonly used and employed to generate smoke for smoke curing
include burning suitable, aeromatic wood, or wood chips, in the
presence of food. Uncontrolled smoking fuel may ignite, rather than
smolder. Several methods of controlling the rate of burning have
been employed, such as wetting the smoking fuel. Wetting the fuel
may produce unsavory side effects. Burning the smoking fuel in the
presence of food may have unfavorable temperature effects, such as
cooking the food or changing its chemical structure.
Accordingly, it is an object of the present invention to provide
smoke-generating apparatus which may generate smoke adjacent a
suitably enclosed food enclosure.
It is another object of this invention to provide smoke-generating
means, including control means to control the rate of burning and
the rate of smoke outflow.
These and other objects shall become apparent from the description
following, it being understood that modifications may be made
without affecting the teachings of the invention here set out.
SUMMARY OF THE INVENTION
Generally, the smoke generator comprises a plurality of concentric
chambers, the innermost of which fuel is provided to burn to
produce aeromatic smoke and the outer chambers being operable to
contain smoke produced by the fuel. The smoke generator may include
control means and suitable venting.
A more thorough and comprehensive understanding may be had from the
detailed description of the preferred embodiment when read in
connection with the drawings forming a part of this
specification.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the smoke generator of this
invention, shown with the sidewalls thereof broken away for
illustrative purposes.
FIG. 2 is a cross-sectional view taken substantially along the
lines 2--2 of the FIG. 1, showing the interior configuration
thereof.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings and, more particularly, to the FIGS.
1 and 2, the smoke generator of this invention is shown to
advantage and generally identified by the numeral 10. The smoke
generator 10 comprises a plurality of concentrically disposed
chambers 11, 12, and 13. It is to be understood that the chambers
11, 12, and 13 may be fixedly or detachably mounted. The centermost
fuel chamber 11 is intended to hold and to incinerate fuel, such as
charcoal. The fuel chamber 11 includes a lower solid cylindrical
wall portion 14 and an upper porous wall portion 15 which is
fastened to the uppermost terminal end of the wall portion 14. The
porous wall portion 15 may be fabricated of suitable material, such
as screen, to permit free circulation of air and heat. The wall
portion 15 may be reinforced at its uppermost terminal end by a
ring 16. The lowermost terminal wall 17 of the fuel chamber 11 and
the smoke generator 10 is provided with a vent 18 which may include
a multiplicity of holes 18', the holes 18' are distally disposed in
the centermost portion of the chamber 11.
The chambers 12 and 13 are operable to carry wood chips (not shown)
used in cure smoking. The inner chip chamber 12 is disposed about
the fuel chamber 11, and includes a cylindrical wall 19 which rests
on the lowermost terminal wall 17. The lowermost portion of the
wall 19 includes a circumferential grating 20 which permits heat
and air to pass between the inner chip chamber 12 and the outer
chip chamber 13. The grating 20 may comprise a multiplicity of
holes 21. The outer chip chamber includes a circumferential wall
22. It has been found to advantage to fabricate the wall 22 to be
distally longer than that of the walls 14 and 19 to permit passage
of heat and air at the upper portion of the smoke generator 10. The
lowermost terminal wall 17 is fastened distally above the lowermost
terminal end of the circumferential wall 22 to provide an air space
beneath the lowermost terminal wall 17. The rim-like portion of the
wall 22 depends below the wall 17 and includes vents 23 to
facilitate passage of air through the vents 23 and the area between
the wall 17 and the surface upon which the generator 10 may be
placed.
The uppermost terminal end of the smoke generator 10 is covered by
a removable cover 24, and is operable to tightly enclose the
uppermost terminal end of the smoke generator 10. Smoke generated
by the generator 10 is conducted to a suitable enclosure (not
shown) containing material to be smoked by a duct 25. The duct 25
is fastened distally from the center of the cover 24 to reduce heat
loss and to increase output of smoke. The duct 25 may be provided
with a damper 26 to control the outflow of smoke from the generator
10 and a coupling 27 to connect the generator 10 with the
enclosure.
In operation, coal fuel is disposed at the bottom of the fuel
chamber 11, and burning fuel is disposed above, generally in the
wall portion 15 of the chamber 11. The fuel may then burn
downwardly in the chamber 11 at a substantially constant rate.
Chips are disposed in the chip chambers 12 and 13. The chips tend
to burn from the center of the smoke generator 10 outwardly, and in
a downward direction in the inner chamber 12, and, as a result of
ignition, through the grating 20, the lower portion of the wall 19,
and upwardly through the chamber 13. Smoke thus generated is
conducted by the duct 25 to the smoking enclosure.
Having thus described in detail a preferred apparatus which
embodies the concepts and principles of the invention and which
accomplishes the various objects, purposes and aims thereof, it is
to be appreciated and will be apparent to those skilled in the art
that many physical changes could be made in the apparatus without
altering the inventive concepts and principles embodied therein.
Hence, it is intended that the scope of the invention be limited
only to the extent indicated in the appended claims.
* * * * *