CA1066578A - Portable cooking unit - Google Patents
Portable cooking unitInfo
- Publication number
- CA1066578A CA1066578A CA265,512A CA265512A CA1066578A CA 1066578 A CA1066578 A CA 1066578A CA 265512 A CA265512 A CA 265512A CA 1066578 A CA1066578 A CA 1066578A
- Authority
- CA
- Canada
- Prior art keywords
- oven
- grill
- section
- chamber
- barbecue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Baking, Grill, Roasting (AREA)
Abstract
PORTABLE COOKING UNIT
ABSTRACT OF THE DISCLOSURE
A combined barbecue pit and oven comprising a sheet metal box having a two-level top portion, a transverse intermedi-ate wall within said box dividing the same into a lower chamber and a higher chamber, said two chambers communicating with each other through a large opening therebetween, liftable lids covering the top of each chamber, a lower grill slidably disposed within said lower chamber and an upper grill slidably disposed within said higher chamber, a door at the front of said lower chamber and a clean-out port downwardly of said door, a fire box disposed at the bottom of said lower chamber, and air inlet cut-ins on the side wall adjacent said lower chamber, a drip pan disposed within said higher chamber directly below said upper grille, and a chim-ney disposed on a top wall portion laterally of the higher chamber lid.
ABSTRACT OF THE DISCLOSURE
A combined barbecue pit and oven comprising a sheet metal box having a two-level top portion, a transverse intermedi-ate wall within said box dividing the same into a lower chamber and a higher chamber, said two chambers communicating with each other through a large opening therebetween, liftable lids covering the top of each chamber, a lower grill slidably disposed within said lower chamber and an upper grill slidably disposed within said higher chamber, a door at the front of said lower chamber and a clean-out port downwardly of said door, a fire box disposed at the bottom of said lower chamber, and air inlet cut-ins on the side wall adjacent said lower chamber, a drip pan disposed within said higher chamber directly below said upper grille, and a chim-ney disposed on a top wall portion laterally of the higher chamber lid.
Description
106657~
The present invention relates to devices of a type used to barbecue foods, principally meat. More particularly, the pres-ent invention relates to such devices which provide means not only ~ `
for direct flame or heat application to the products being cooked but also pro~ides a separate compartment, heated by convection, for cooking the food product by smoke or heated air. ~ `~
BACKGROUND OF THE INVENTION AND PRIOR ART `
: : :
one class of prior devices~to barbecue or roast food .~ . -products, whether the de~ices be those uSing electricity or lique- -~
fled petroleum gas or charcoal, are so constructed that the food-stuffs to be barbecued or roasted are generally positioned directly above the electrical heater or the liquefied petroleum gas burner or charcoal. Because of this construction, it is then necessary .. . ..
to have the foodstuff being barbecued or roasted turned or rotated continuously in order to insure an even cooking and to prevent the charring of the foodstuffs. `~
Hence with such prior devices constant attention is therefore necessary in order to attain satisfactory results.
:- -To overcome the problem of the need for ConStant attend-ance at a grill or barbecue oven to prevent burning of the food~
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stuffs and to turn and rotate the foodstuffs as necessary, there was developed the concept of cooking foodstuffs by convection.
Devlce in this class have a co~bustion chamber frwm which the heated air i-~ passed into what is then referred to as a cooking ccmparbment. In these smoke cooking devices a combustion chamber ~
is usually to one side of the cooking chamber and at a lower level. ~ -Use was made of haffle plates bet~een the cooking comparement and the combustioll compartment to direct the hot gases into the cook~
ing compartment in such a way as to more cwmpletely envelop the ~ ::
~16657~ ~
foodstuffs placed therein. The combustion compartment usually had a removable cover thereto and it was used primarily for a warming plate while the food was being cooked in the cooking com-partment.
U. S~ Patent 2,~51,941 discloses such a device. In this patent the cooking compartment comprises a pair of fixed shelves to which the heated gas is fed by a chimney type arran8ement be-tween the combustion compartment and the cooking compartment. The heated gases pass through this chimney into the cooking compart-ment and with a baffle plate placed at the end of the compartment ~ ~
opposite the combustion compartment a flue is fonmed thus causing ~ -the gases to pass downward over the ood into this flue in the cooking compartment and then out through the flue and its attend~
-ant chimney. -~-U. S. Patent 3,477~360 discloses a smoke cooking de~ice again having the combustion compartment to one side of the cooking compartment. In this patent the heated gases are directed to the -cooking compartment directly from the combustion compartment with~
out use of the flue as in 2~851~941. In this patent the hot gases pass upward through the grill supporting the foodstuffs. Use is also made of said baffle plate between the cooking compartment and the combustion compartment which is placed at an inclination such as ~o direct the heat from the underside of a grid in t~e co~bus~
tion compartment upon which the combustible materials are placed~
directly upward toward the food product to be cookedO
SUM~ARY OF THE PRESENT INVENTICN
The preseht inYention differs from the known prior art in that the unit provides at least two cooking compartments and a l combustion c~mpartment in a side-by-side arrangement. One of the `
:.
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The present invention relates to devices of a type used to barbecue foods, principally meat. More particularly, the pres-ent invention relates to such devices which provide means not only ~ `
for direct flame or heat application to the products being cooked but also pro~ides a separate compartment, heated by convection, for cooking the food product by smoke or heated air. ~ `~
BACKGROUND OF THE INVENTION AND PRIOR ART `
: : :
one class of prior devices~to barbecue or roast food .~ . -products, whether the de~ices be those uSing electricity or lique- -~
fled petroleum gas or charcoal, are so constructed that the food-stuffs to be barbecued or roasted are generally positioned directly above the electrical heater or the liquefied petroleum gas burner or charcoal. Because of this construction, it is then necessary .. . ..
to have the foodstuff being barbecued or roasted turned or rotated continuously in order to insure an even cooking and to prevent the charring of the foodstuffs. `~
Hence with such prior devices constant attention is therefore necessary in order to attain satisfactory results.
:- -To overcome the problem of the need for ConStant attend-ance at a grill or barbecue oven to prevent burning of the food~
- :
stuffs and to turn and rotate the foodstuffs as necessary, there was developed the concept of cooking foodstuffs by convection.
Devlce in this class have a co~bustion chamber frwm which the heated air i-~ passed into what is then referred to as a cooking ccmparbment. In these smoke cooking devices a combustion chamber ~
is usually to one side of the cooking chamber and at a lower level. ~ -Use was made of haffle plates bet~een the cooking comparement and the combustioll compartment to direct the hot gases into the cook~
ing compartment in such a way as to more cwmpletely envelop the ~ ::
~16657~ ~
foodstuffs placed therein. The combustion compartment usually had a removable cover thereto and it was used primarily for a warming plate while the food was being cooked in the cooking com-partment.
U. S~ Patent 2,~51,941 discloses such a device. In this patent the cooking compartment comprises a pair of fixed shelves to which the heated gas is fed by a chimney type arran8ement be-tween the combustion compartment and the cooking compartment. The heated gases pass through this chimney into the cooking compart-ment and with a baffle plate placed at the end of the compartment ~ ~
opposite the combustion compartment a flue is fonmed thus causing ~ -the gases to pass downward over the ood into this flue in the cooking compartment and then out through the flue and its attend~
-ant chimney. -~-U. S. Patent 3,477~360 discloses a smoke cooking de~ice again having the combustion compartment to one side of the cooking compartment. In this patent the heated gases are directed to the -cooking compartment directly from the combustion compartment with~
out use of the flue as in 2~851~941. In this patent the hot gases pass upward through the grill supporting the foodstuffs. Use is also made of said baffle plate between the cooking compartment and the combustion compartment which is placed at an inclination such as ~o direct the heat from the underside of a grid in t~e co~bus~
tion compartment upon which the combustible materials are placed~
directly upward toward the food product to be cookedO
SUM~ARY OF THE PRESENT INVENTICN
The preseht inYention differs from the known prior art in that the unit provides at least two cooking compartments and a l combustion c~mpartment in a side-by-side arrangement. One of the `
:.
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~ ~;tiS~8 cooking compartments is directly above the combustion compartment and can be utilized for the conventional grilling or frying of foodstuffs placed thereon. A second cooking compartment is to one side of the first cooking compartment, being separated therefrom by a downward depending baffle plate in the upper portion of the second compartment and a second baffle plate interior of the unit and spaced from the bottom thereof extendin~ part way up between the front and back walls in the same plane as the upper baffle. The ~;
present invention also provides two cooking racks spaced verti-cally from one another but slidable along their supports so that either rack may be slid into either cooking compartment. In the cooking compartment adjacent the combustion compartment there is also provided a third cooking compartment in the form of a warm-ing drawer which can be used in some instances to actually cook products. This is made possible by the construction of the lower baffle previously mentioned.
More specifically, the invention can be defined as a portable cooking unit comprising a generally rec-~ri,r~
tangular encloseable me~al shell having one end portion of greater height than the opposite end portion, said opposite end portioncomprising a barbecue section having means to provide direct heat to food and first grill means to support food over said heating ;~
means; said one end portion comprising an oven section to cook food by heated air or smoke from said barbecue section, said oven sec-tion having a second grill means in the upper half of said oven section to support food to be cooked in said oven by said heated air or smoke; said oven section and said barbecue section being separated by a pair of vertically-spaced interior walls positioned in the same vertical plane within said shell and interconnecting ~ 3 ~
. . .
the front and back walls of said shell, said spaced walls provid-ing lateral means between said barbecue section and said oven section for said flow of said heated air or smoke into and through said oven section; said barbecue section and said oven section each having an opening in the upper portion of the front wall of their respective sections to provide lateral access to food being coo~ed in each section, the lower edge of each said opening having a plurality of vertical openings to receive skewers; each of ~aid barbecue and oven sections having a hinged cover with a depending front plate which closes each respective acsess opening when said covers are lowered, said front plates also coacting with said skewer receiving means to prevent said skewers from turning; said ~ .
first and second grill means each comprising a pair of spaced ~ .
horizontally-opposed angle bars mounted on the interior surfaces ~`
of the front and back walls of said shell, the first grill mea~s being below the second grill means, and extending the length of said wall as supports for food-supporting grills, at least one of said grill supports being positioned within said shell whereby the grill thereon may be slidably moved back and forth between said oven section and said barbecue section; said unit further having smoke exhaust means extending upwardly from the oven section adjacent said oven section cover.
The invention can also be defined as a combined barbecue pit and oven comprising a sheet metal box having a t~o-level top portion, a transverse intermediate wall within said box dividing the same into a lower chamber and a higher chamber, said two chambers communicating with each other through a large opening therebetween, liftable lids covering the top of each chclmber, a lower grill slidably disposed within said lower chamber ~ :
and an upper grill slidably disposed within said higher chamber, a door at the front of said lower chamber and a clean-out port I ~ :
- 3a -. .
;5~8 downwardly of said door, a fire box disposed at the bottom of said lower chamber, and air inlet cut-ins on the side wall adjacent said lower chamber, a drip pan disposed within said higher chamber directly below said upper grill, and a chimney disposed on a top wall portion laterally of the higher chamber lid.
The present device is adapted to provide the necessary cooking of foodstuffs by use of conventional combustibles such as wood or coal; can be used with an electric coil directly supply-ing heat; can be used with gas burners to which li~uefied petrol-eum gas is supplied; can be used with charcoal; or can be used with a combination of charcoal and either the gas burner or the electric coil.
DESCRIPTION OF THE DRAWINGS
The present invention will now be illustrated in the fol-lowing drawings which are at varying scales in order to show cer~
tain aspects of the invention with improved clarity. The draw-ings show one illustrative embodiment of the present invention and ~.
in no way are to be construed as being restrictive to the scope of the in~ention.
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~i6571~ -Figure I is an exterior perspective of the embodiment.
Figure II is an elevation endL view with partial sec-tions.
Figure III is an elevation view o~ the front of the embodiment.
Figure IV is a parspective of one embodiment of a con~
tainer for the charcoal.
Figure V is a perspective view of the charcoal container and one embodiment of an electric coil.
Figure VI is an end view of the container of Figure IV
in which gas burners are inserted and charcoal has been placed on ~-top thereof.
Figure VII is a perspective view of a portion of a skewer support showing one means to hold the ends of skewers to prevent them from sliding off the support.
Figure VIII is a fragmentary back view.
DETAILED DESCR~PTION OF TH~ EMBO~IM~NT
With reference to Figure I this portable combined barbe-2Q cue pit and oven unit consists of a generally rectangular sheetmetal box 1 which is divided into two major compartments. A left hand compartment or barbecue section is stepped down from the top surface of the unit. The right hand portion of the unit is sepa-rated from the barbecue portion by two divider walls 4a and 4b.
Wall 4a is positioned above the floor of the unit and extends up-~ardly to about the level of the first support for the lower grill lQ. Wall 4b extends downwardly from the top of the unit at least below the level of the cover 6 for the barbecue portion and may extend down to a position just above the support for the upper ~ ,~
~ ~0665~
grill 12. The ve~tical spacing apart of the walls 4a and 4b pro-vides an opening 5 which extends the full depth of the unit and pro-vides for ~he flow of the heated gases from the barbecue por~lon into the oven portion.
The back wall 9 of the unit is substanti~lly flat except for a closeable opening in the lower ri8ht hand corner, seen best in Figure VIII wherein opening 40 provides an access for a gas line or for an electric line as will be explained later. The opening 40 is closed by a slidable gate 41 which moves vertically within guides 420 The front wall 8 has a plurality of openings for differ-ent purposes. In the barbecue portion of the uni~ the opening 8a provides access readily to the grills when barbecueing is taking ~
place in this portion and the cover 6 is raised. Below the open- -ing 8a and in the horizontal edge thereof are a plurality of slots 18 ~hich receive skewers in the inStanCeS when skewed food prod~cts are to be barbecued. Below the skewer openings is an opening 8c which provides means for inserting combustible materials in the -form of firewood, or charcoal as will be discussed later. The open~
2~ ing 8c has a door 8d fitted thereto with a handle 8e. In the lower left hand corner of the front wall 8 is an opening 16 which pro~
vides access for removal of ashes in the event of a wood or char-coal fire. Ihat portion of front wall 8 which encompasses the oven -`
section of the unit has an opening 8f in its upper edge which again provides easy access to foods being cooked on the grills in this compartment. Below the opening 8f and in the horizontal edge there-of a~e a plurality of slots 18a depending from this edge for use of skewers in the event ehat the skewed food produrts are to be cooked by heated gas in this compartment. In the lower portion of : , . , . . -, ............. . . ~.
. . : ~ . . . : .
-, . - . . - . . . .
~06~i5~8 front wall 8 covering the oven section is an openlng 8g which re-ceiYes a pan 20 used for catchLng the drippings in some instanCeS
or which may be used for heating foods as will be explained sub~
sequently.
A left end wall 50 has a plurality of vents 17 in its lower edge to provide additional air for the c~mbustible material in the barbecue portion of the unit. A handle 26 is affixed near the upper edge of this left wall. The right end wall 51 has a handle 26 also affixed thereto.
The barbecue portion of the unit is provided with a cover 6 which is mounted with hinges 30 to the upper portion of back wall 9. The cover 6 is provided with a handle 6a on its front depend-ing panel 6b. It will be noted that the outer edges of the cover have a depending flange 6c along the sides and on the front panel.
Flange 6c is to provide a seal against the unnecesSary escape of the smoke or hot gases from this portion of the unit. The flange combined with the cover also provides greater stability to the cover when it is lowered over the cooking unit. It will be noted that the lower edge 6d of the front panel 6b of the door does not com-pletely cover the slots 18. The purpose of this is to provide a weight on the skewers so that they remain in position as they are turned during the barbecueing process.
The oven portion of the unit is similarly provided with a cover 7 which is of construction substantially identical to that of cover 6 having a handle 7a~ a front panel 7b, and flanges 7c.
Cover 7 is mounted on the upper edge of the back wall 9 by hinges 31. It is to be noted that the back wall also carries a rest 31a ;
against which ehe cover 7 may be placed when it is in the raised position. Cover 6 similarly is provided with a support 30a for the same purpose.
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~665'7l3 ~ .
It will be noted that when the cover 7 is lowered over ~he oven unit the flange 7d on the right hand slde rests on the top surface 21 of the unit. The left hand 31de vf cover 7 rests on the upper ed8e of wall 4b. When cover 6 i9 lowered o~er the barbecue portion the left hand edge of the coYer rests on the top edge of end wall 50. The right hand edge of the cover 6b rests on a flange portion 52 which extends laterally from wall 4b within ~ ;~
the barbecue compartmen This flange 52 may be formed integrally with wall 4b when wall 4b is of a depth no greater than the top of the cover 6. In the event the ~11 4b is extended downwardly with~
in the unit the flange 41 may then be secured to the surface of wall 4b by a known method such as brazing and the like.
Within the unit are arranged the upper and lower grills 13 and 11 respectively which are slidably supported within the unit. The lowered grill 11 ls supported by a pair of spaced horizontally-opposed angle bars, one secured to the inner surface of the front wall 8, the other to the inner surface of front wall 9. me upper grill 13 is supported by a similarly arranged pair of angle bars 12. The grill~ themselves are the conventional type~
mainly c~mpris~ng a longitudinally rod on each longitudinal side to the top of which are affixed a plurality of lateral bars. The grills are substantially the same length which corresponds gener~
ally to the length of the oven compartment. This permits the `~
grills to be interchangeably positioned within the barbecue portion or the oven portion. -;
Heat for the unit may be supplied in several ways. Wh~n -wood or coal is used, there is provided a fire box 15 which is inser~ed through door 8d in the barbecue portion. Wi~hln the fire ~--box there may be placed a conventional type of grate (not shown3 ~ -- 7 - ~ ~
.:
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upon which conventional wood or other similar type combustible materials may be placed and ignitecl. The fire box may also be re-moved and use made of a heat resistant metal basket 53 shown in Figure IV. With the use of the metal basket, charcoal of vary$~g fonms may be uset or the basket could be used in lieu o~ the fire pan 15 with conventional combustible materials. The necessary heat may also be provided by an electric heating element 54 as shown in Figure V. The heating element 54 may be used with the wire basket or it may be placed in the fire pan 15 or as shown specific-ally in Figure V the coil may be placed in the wire basket 53 and `
charcoal placed thereon. An alternative to the electric coil would be a liquefled petroleum fired elements 55 such as shown in illus-tratively in Figure VI. mese UnitS may be of the type which pro~
duce a flame on the outer edge of the unit or may be of a type ;~
which provides the flame in a bowl fonm. As with the electrical ~ ;
coil 54 the gas fired elements 55 may be used alone or may be used -~
to ignite the chascoal in the wire basket. ;~
The heat to the barbecue portion and the oven portion s~
supplied as indicated by the arrows seen best in Figure III. The barbecue portion of the unit would of course be supplied with dir~
ect heat from the fire below the grills. The heat for the oven portion is supplied through the opening 5 between divider walls 4a and 4b. This heated gas and/or smoke will circulate within the o~en and eventually will be discharged therefrom through the chim-ney 22 whirh is mounted on the upper surface 21 to the right of the oven compartment. The chimney 22 is provided with a cover 25 and a damper 24. me cover 25 is placed above the spaced openings 23 in the top of the chimney 22. Heat also is supplied to she oven portion through the opening 5a below ~he lower edge of wall 4a.
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Heat supplied in this manner passes under the drip pan 20 and up the sides again passing over whatever grills may be present ln the oven compartment~ While the drip pan may be used primarily to catch the drippings from the foods being cooked in the oven por-tion it may also be used to heat foods since the heat generated by the passage of the heated gases throu~h opening 5a is suffici-ent to boil liquids in the pan 20.
When cooking meat on skewers the end of the skewer rods may be placed on the support 12 in the barbecue portion of the unit. To prevent the ends of the rods from turning or sliding along the support and perhaps dropping down use could be made of the grill 13 which could be slid across its support 12 into the barbecue portion and the end of the skewer rods placed between the lateral rods on the grill. An alternative would be to make grooves in the horizontal surface of support 12 such as grooves 56 in the hori~ontal surface of support 12 as shown in Figure VII. For skewers in the oven portion of the unit there is provided a skewer end support 57 (see Figure II) which is mounted on the inner sur~
face of back wall 9 at the same level as the skewer 510ts 18. The support 57 is substantially identical to the support 12 illustrated in Figure ~II with grooves 56 placed therein. The pOSitiOning or spacing of the grills in the unit may be varied without departing from the scope of the invention. In the event the upper grill is placed above the position shown in Figures II and III the skewer - ~ ~
support 57 would be placed on the back wall inner surface of back !;
wall 9 in the barbecue portion of the unit at the sa~e height as the skewer slots 18.
While the present invention has been illustratively shnwn as being adapted to be placed upon any flat surface~ it is appar- ;
~; ,;, ~ -~t;6~7~3 ent that it would be provided with a wheel assembly either of a permanent or temporary nature for ease in moving it about.
The present invention provides a plurality of heating compartments; the barbecue portion in which food may be cooked on : :
the lower grill or the upper grill or the skewers in this portion;
the oven compartment in which food may be cooked on ths lower grill or upper grill or skewer portions; and the lower heating compartment comprising the pan 20 which is supplied with heat pass-in8 under the pan as well as passing over the top thereof. Whlle the present invention has been described and illustrated in one ;~
embodiment it will be apparent to those of skill in the art that structural changes can be made within the scope of the present invention which is set forth in the claims that follow.
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~ ~;tiS~8 cooking compartments is directly above the combustion compartment and can be utilized for the conventional grilling or frying of foodstuffs placed thereon. A second cooking compartment is to one side of the first cooking compartment, being separated therefrom by a downward depending baffle plate in the upper portion of the second compartment and a second baffle plate interior of the unit and spaced from the bottom thereof extendin~ part way up between the front and back walls in the same plane as the upper baffle. The ~;
present invention also provides two cooking racks spaced verti-cally from one another but slidable along their supports so that either rack may be slid into either cooking compartment. In the cooking compartment adjacent the combustion compartment there is also provided a third cooking compartment in the form of a warm-ing drawer which can be used in some instances to actually cook products. This is made possible by the construction of the lower baffle previously mentioned.
More specifically, the invention can be defined as a portable cooking unit comprising a generally rec-~ri,r~
tangular encloseable me~al shell having one end portion of greater height than the opposite end portion, said opposite end portioncomprising a barbecue section having means to provide direct heat to food and first grill means to support food over said heating ;~
means; said one end portion comprising an oven section to cook food by heated air or smoke from said barbecue section, said oven sec-tion having a second grill means in the upper half of said oven section to support food to be cooked in said oven by said heated air or smoke; said oven section and said barbecue section being separated by a pair of vertically-spaced interior walls positioned in the same vertical plane within said shell and interconnecting ~ 3 ~
. . .
the front and back walls of said shell, said spaced walls provid-ing lateral means between said barbecue section and said oven section for said flow of said heated air or smoke into and through said oven section; said barbecue section and said oven section each having an opening in the upper portion of the front wall of their respective sections to provide lateral access to food being coo~ed in each section, the lower edge of each said opening having a plurality of vertical openings to receive skewers; each of ~aid barbecue and oven sections having a hinged cover with a depending front plate which closes each respective acsess opening when said covers are lowered, said front plates also coacting with said skewer receiving means to prevent said skewers from turning; said ~ .
first and second grill means each comprising a pair of spaced ~ .
horizontally-opposed angle bars mounted on the interior surfaces ~`
of the front and back walls of said shell, the first grill mea~s being below the second grill means, and extending the length of said wall as supports for food-supporting grills, at least one of said grill supports being positioned within said shell whereby the grill thereon may be slidably moved back and forth between said oven section and said barbecue section; said unit further having smoke exhaust means extending upwardly from the oven section adjacent said oven section cover.
The invention can also be defined as a combined barbecue pit and oven comprising a sheet metal box having a t~o-level top portion, a transverse intermediate wall within said box dividing the same into a lower chamber and a higher chamber, said two chambers communicating with each other through a large opening therebetween, liftable lids covering the top of each chclmber, a lower grill slidably disposed within said lower chamber ~ :
and an upper grill slidably disposed within said higher chamber, a door at the front of said lower chamber and a clean-out port I ~ :
- 3a -. .
;5~8 downwardly of said door, a fire box disposed at the bottom of said lower chamber, and air inlet cut-ins on the side wall adjacent said lower chamber, a drip pan disposed within said higher chamber directly below said upper grill, and a chimney disposed on a top wall portion laterally of the higher chamber lid.
The present device is adapted to provide the necessary cooking of foodstuffs by use of conventional combustibles such as wood or coal; can be used with an electric coil directly supply-ing heat; can be used with gas burners to which li~uefied petrol-eum gas is supplied; can be used with charcoal; or can be used with a combination of charcoal and either the gas burner or the electric coil.
DESCRIPTION OF THE DRAWINGS
The present invention will now be illustrated in the fol-lowing drawings which are at varying scales in order to show cer~
tain aspects of the invention with improved clarity. The draw-ings show one illustrative embodiment of the present invention and ~.
in no way are to be construed as being restrictive to the scope of the in~ention.
- 3b -. . . - , .
... . .
~i6571~ -Figure I is an exterior perspective of the embodiment.
Figure II is an elevation endL view with partial sec-tions.
Figure III is an elevation view o~ the front of the embodiment.
Figure IV is a parspective of one embodiment of a con~
tainer for the charcoal.
Figure V is a perspective view of the charcoal container and one embodiment of an electric coil.
Figure VI is an end view of the container of Figure IV
in which gas burners are inserted and charcoal has been placed on ~-top thereof.
Figure VII is a perspective view of a portion of a skewer support showing one means to hold the ends of skewers to prevent them from sliding off the support.
Figure VIII is a fragmentary back view.
DETAILED DESCR~PTION OF TH~ EMBO~IM~NT
With reference to Figure I this portable combined barbe-2Q cue pit and oven unit consists of a generally rectangular sheetmetal box 1 which is divided into two major compartments. A left hand compartment or barbecue section is stepped down from the top surface of the unit. The right hand portion of the unit is sepa-rated from the barbecue portion by two divider walls 4a and 4b.
Wall 4a is positioned above the floor of the unit and extends up-~ardly to about the level of the first support for the lower grill lQ. Wall 4b extends downwardly from the top of the unit at least below the level of the cover 6 for the barbecue portion and may extend down to a position just above the support for the upper ~ ,~
~ ~0665~
grill 12. The ve~tical spacing apart of the walls 4a and 4b pro-vides an opening 5 which extends the full depth of the unit and pro-vides for ~he flow of the heated gases from the barbecue por~lon into the oven portion.
The back wall 9 of the unit is substanti~lly flat except for a closeable opening in the lower ri8ht hand corner, seen best in Figure VIII wherein opening 40 provides an access for a gas line or for an electric line as will be explained later. The opening 40 is closed by a slidable gate 41 which moves vertically within guides 420 The front wall 8 has a plurality of openings for differ-ent purposes. In the barbecue portion of the uni~ the opening 8a provides access readily to the grills when barbecueing is taking ~
place in this portion and the cover 6 is raised. Below the open- -ing 8a and in the horizontal edge thereof are a plurality of slots 18 ~hich receive skewers in the inStanCeS when skewed food prod~cts are to be barbecued. Below the skewer openings is an opening 8c which provides means for inserting combustible materials in the -form of firewood, or charcoal as will be discussed later. The open~
2~ ing 8c has a door 8d fitted thereto with a handle 8e. In the lower left hand corner of the front wall 8 is an opening 16 which pro~
vides access for removal of ashes in the event of a wood or char-coal fire. Ihat portion of front wall 8 which encompasses the oven -`
section of the unit has an opening 8f in its upper edge which again provides easy access to foods being cooked on the grills in this compartment. Below the opening 8f and in the horizontal edge there-of a~e a plurality of slots 18a depending from this edge for use of skewers in the event ehat the skewed food produrts are to be cooked by heated gas in this compartment. In the lower portion of : , . , . . -, ............. . . ~.
. . : ~ . . . : .
-, . - . . - . . . .
~06~i5~8 front wall 8 covering the oven section is an openlng 8g which re-ceiYes a pan 20 used for catchLng the drippings in some instanCeS
or which may be used for heating foods as will be explained sub~
sequently.
A left end wall 50 has a plurality of vents 17 in its lower edge to provide additional air for the c~mbustible material in the barbecue portion of the unit. A handle 26 is affixed near the upper edge of this left wall. The right end wall 51 has a handle 26 also affixed thereto.
The barbecue portion of the unit is provided with a cover 6 which is mounted with hinges 30 to the upper portion of back wall 9. The cover 6 is provided with a handle 6a on its front depend-ing panel 6b. It will be noted that the outer edges of the cover have a depending flange 6c along the sides and on the front panel.
Flange 6c is to provide a seal against the unnecesSary escape of the smoke or hot gases from this portion of the unit. The flange combined with the cover also provides greater stability to the cover when it is lowered over the cooking unit. It will be noted that the lower edge 6d of the front panel 6b of the door does not com-pletely cover the slots 18. The purpose of this is to provide a weight on the skewers so that they remain in position as they are turned during the barbecueing process.
The oven portion of the unit is similarly provided with a cover 7 which is of construction substantially identical to that of cover 6 having a handle 7a~ a front panel 7b, and flanges 7c.
Cover 7 is mounted on the upper edge of the back wall 9 by hinges 31. It is to be noted that the back wall also carries a rest 31a ;
against which ehe cover 7 may be placed when it is in the raised position. Cover 6 similarly is provided with a support 30a for the same purpose.
' - 6 _ ~
~665'7l3 ~ .
It will be noted that when the cover 7 is lowered over ~he oven unit the flange 7d on the right hand slde rests on the top surface 21 of the unit. The left hand 31de vf cover 7 rests on the upper ed8e of wall 4b. When cover 6 i9 lowered o~er the barbecue portion the left hand edge of the coYer rests on the top edge of end wall 50. The right hand edge of the cover 6b rests on a flange portion 52 which extends laterally from wall 4b within ~ ;~
the barbecue compartmen This flange 52 may be formed integrally with wall 4b when wall 4b is of a depth no greater than the top of the cover 6. In the event the ~11 4b is extended downwardly with~
in the unit the flange 41 may then be secured to the surface of wall 4b by a known method such as brazing and the like.
Within the unit are arranged the upper and lower grills 13 and 11 respectively which are slidably supported within the unit. The lowered grill 11 ls supported by a pair of spaced horizontally-opposed angle bars, one secured to the inner surface of the front wall 8, the other to the inner surface of front wall 9. me upper grill 13 is supported by a similarly arranged pair of angle bars 12. The grill~ themselves are the conventional type~
mainly c~mpris~ng a longitudinally rod on each longitudinal side to the top of which are affixed a plurality of lateral bars. The grills are substantially the same length which corresponds gener~
ally to the length of the oven compartment. This permits the `~
grills to be interchangeably positioned within the barbecue portion or the oven portion. -;
Heat for the unit may be supplied in several ways. Wh~n -wood or coal is used, there is provided a fire box 15 which is inser~ed through door 8d in the barbecue portion. Wi~hln the fire ~--box there may be placed a conventional type of grate (not shown3 ~ -- 7 - ~ ~
.:
~ ~0~;6S~
upon which conventional wood or other similar type combustible materials may be placed and ignitecl. The fire box may also be re-moved and use made of a heat resistant metal basket 53 shown in Figure IV. With the use of the metal basket, charcoal of vary$~g fonms may be uset or the basket could be used in lieu o~ the fire pan 15 with conventional combustible materials. The necessary heat may also be provided by an electric heating element 54 as shown in Figure V. The heating element 54 may be used with the wire basket or it may be placed in the fire pan 15 or as shown specific-ally in Figure V the coil may be placed in the wire basket 53 and `
charcoal placed thereon. An alternative to the electric coil would be a liquefled petroleum fired elements 55 such as shown in illus-tratively in Figure VI. mese UnitS may be of the type which pro~
duce a flame on the outer edge of the unit or may be of a type ;~
which provides the flame in a bowl fonm. As with the electrical ~ ;
coil 54 the gas fired elements 55 may be used alone or may be used -~
to ignite the chascoal in the wire basket. ;~
The heat to the barbecue portion and the oven portion s~
supplied as indicated by the arrows seen best in Figure III. The barbecue portion of the unit would of course be supplied with dir~
ect heat from the fire below the grills. The heat for the oven portion is supplied through the opening 5 between divider walls 4a and 4b. This heated gas and/or smoke will circulate within the o~en and eventually will be discharged therefrom through the chim-ney 22 whirh is mounted on the upper surface 21 to the right of the oven compartment. The chimney 22 is provided with a cover 25 and a damper 24. me cover 25 is placed above the spaced openings 23 in the top of the chimney 22. Heat also is supplied to she oven portion through the opening 5a below ~he lower edge of wall 4a.
s~
Heat supplied in this manner passes under the drip pan 20 and up the sides again passing over whatever grills may be present ln the oven compartment~ While the drip pan may be used primarily to catch the drippings from the foods being cooked in the oven por-tion it may also be used to heat foods since the heat generated by the passage of the heated gases throu~h opening 5a is suffici-ent to boil liquids in the pan 20.
When cooking meat on skewers the end of the skewer rods may be placed on the support 12 in the barbecue portion of the unit. To prevent the ends of the rods from turning or sliding along the support and perhaps dropping down use could be made of the grill 13 which could be slid across its support 12 into the barbecue portion and the end of the skewer rods placed between the lateral rods on the grill. An alternative would be to make grooves in the horizontal surface of support 12 such as grooves 56 in the hori~ontal surface of support 12 as shown in Figure VII. For skewers in the oven portion of the unit there is provided a skewer end support 57 (see Figure II) which is mounted on the inner sur~
face of back wall 9 at the same level as the skewer 510ts 18. The support 57 is substantially identical to the support 12 illustrated in Figure ~II with grooves 56 placed therein. The pOSitiOning or spacing of the grills in the unit may be varied without departing from the scope of the invention. In the event the upper grill is placed above the position shown in Figures II and III the skewer - ~ ~
support 57 would be placed on the back wall inner surface of back !;
wall 9 in the barbecue portion of the unit at the sa~e height as the skewer slots 18.
While the present invention has been illustratively shnwn as being adapted to be placed upon any flat surface~ it is appar- ;
~; ,;, ~ -~t;6~7~3 ent that it would be provided with a wheel assembly either of a permanent or temporary nature for ease in moving it about.
The present invention provides a plurality of heating compartments; the barbecue portion in which food may be cooked on : :
the lower grill or the upper grill or the skewers in this portion;
the oven compartment in which food may be cooked on ths lower grill or upper grill or skewer portions; and the lower heating compartment comprising the pan 20 which is supplied with heat pass-in8 under the pan as well as passing over the top thereof. Whlle the present invention has been described and illustrated in one ;~
embodiment it will be apparent to those of skill in the art that structural changes can be made within the scope of the present invention which is set forth in the claims that follow.
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Claims (9)
1. A portable cooking unit comprising a generally rec-tangular encloseable metal shell having one end portion of greater height than the opposite end portion, said opposite end portion comprising a barbecue section having means to provide direct heat to food and first grill means to support food over said heating means; said one end portion comprising an oven section to cook food by heated air or smoke from said barbecue section, said oven sec-tion having a second grill means in the upper half of said oven section to support food to be cooked in said oven by said heated air or smoke; said oven section and said barbecue section being separated by a pair of vertically-spaced interior walls positioned in the same vertical plane within said shell and interconnecting the front and back walls of said shell, said spaced walls provid-ing lateral means between said barbecue section and said oven section for said flow of said heated air or smoke into and through said oven section; said barbecue section and said oven section each having an opening in the upper portion of the front wall of their respective sections to provide lateral access to food being cooked in each section, the lower edge of each said opening having a plurality of vertical openings to receive skewers; each of said barbecue and oven sections having a hinged cover with a depending front plate which closes each respective access opening when said covers are lowered, said front plates also coacting with said skewer receiving means to prevent said skewers from turning; said first and second grill means each comprising a pair of spaced horizontally-opposed angle bars mounted on the interior surfaces of the front and back walls of said shell, the first grill means being below the second grill means, and extending the length of said wall as supports for food-supporting grills, at least one of said grill supports being positioned within said shell whereby the grill thereon may be slidably moved back and forth between said oven section and said barbecue section; said unit further having smoke exhaust means extending upwardly from the oven sec-tion adjacent said oven section cover.
2. The cooking unit according to Claim 1, wherein said lateral means for said flow of said heated air or smoke comprises a first opening between the lower edge of said upper vertical wall and the upper edge of said lower vertical wall, and a second opening between the bottom of said shell and the lower edge of said lower vertical wall.
3. The cooking unit according to Claim 1, wherein the outer end wall of said barbecue section contains a plurality of louvers positioned adjacent the heating means.
4. The cooking unit according to Claim 1, wherein the front wall of said barbecue section has a second opening for access to said heating means and a hinged door for said second opening.
5. The cooking unit according to Claim 4, wherein said heating means comprises a metal fire box insertable through said second opening, said box having grate bars positioned across and above the bottom thereof to support combustible material.
6. The cooking unit according to Claim 4, wherein said means comprises a wire basket to hold combustible material.
7. The cooking unit according to Claim 4, wherein said heating means is selected from the group of electric heating coils and gas burners.
8. The cooking unit according to Claim 2, wherein said first opening has a vertical height such that said first and sec-ond grill means extend therethrough.
9. A combined barbecue pit and oven comprising a sheet metal box having a two-level top portion, a transverse intermedi-ate wall within said box dividing the same into a lower chamber and a higher chamber, said two chambers communicating with each other through a large opening therebetween, liftable lids covering the top of each chamber, a lower grill slidably disposed within said lower chamber and an upper grill slidably disposed within said higher chamber, a door at the front of said lower chamber and a clean-out port downwardly of said door, a fire box disposed at the bottom of said lower chamber, and air inlet cut-ins on the side wall adjacent said lower chamber, a drip pan disposed within said higher chamber directly below said upper grill, and a chimney dis-posed on a top wall portion laterally of the higher chamber lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA265,512A CA1066578A (en) | 1976-11-12 | 1976-11-12 | Portable cooking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA265,512A CA1066578A (en) | 1976-11-12 | 1976-11-12 | Portable cooking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1066578A true CA1066578A (en) | 1979-11-20 |
Family
ID=4107253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA265,512A Expired CA1066578A (en) | 1976-11-12 | 1976-11-12 | Portable cooking unit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1066578A (en) |
-
1976
- 1976-11-12 CA CA265,512A patent/CA1066578A/en not_active Expired
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