Not applicable.
The invention relates generally to ovens for preparing food products, and more particularly to a mobile barbeque oven or smoker.
Food products, for example meats such as beef, pork, and poultry, as well as fish and the like, traditionally are prepared for consumption by subjecting the raw product to sufficient heat so as to cook the product to an appropriate level of doneness. Various ovens or cookers are used for roasting, broiling, smoking or barbequing meat. In many instances, the cookers or ovens used to prepare the product have a cooking chamber and a source of convection heat, for example, electric heating elements, gas jets, wood or charcoal burners. In commercial food preparation, for example in restaurants, large ovens are employed to cook or prepare large quantities of product at one time. For example, large convection ovens or barbeque ovens or smokers are used to prepare batches of food products, such as roasts, ribs, chickens, fish and sometimes potatoes and other vegetables. These products generally are placed on racks inside the cooking chamber and subjected to heat and/ or smoke. These commercial ovens, particularly barbeque ovens or smokers, usually impart a unique and desired flavor and quality to the prepared foods.
These commercial ovens or smokers function well for their intended purposes. However, the commercial ovens or smokers generally are fixtures in a restaurant or other food preparation facility. They are large, heavy and often connected to a source of fuel, such as natural gas and electricity. There are myriad opportunities to provide cooked or smoked food products, such as barbeque, at sites remote from a commercial oven or smoker. For example, small barbeque stand operators, caterers and barbeque competition participants prepare smaller quantities of food products outside the conventional restaurant or food preparation setting. Small barbeque pits or smokers are known. However, the typical small barbeque pits or smokers do not have the same cooking features and do not produce product having the desired characteristics of commercial barbeque ovens or smokers. Many individuals desire to prepare food products in a manner similar to those prepared in the large commercial barbeque ovens or smokers.
It would be advantageous, therefore, to provide a smaller barbeque oven or smoker for preparation of food products that includes many of the same cooking features as a larger commercial oven or smoker.
Also, it would be advantageous to provide such an oven that is mobile and that can be transported to any desired site for food preparation.
It would be advantageous to provide such an oven that a number of accessories and features that allow customization of the oven as desired by the user.
In one aspect of the invention, a trailer mounted oven is provided wherein the oven includes a food preparation or cooking chamber equipped with a rotisserie capable of mounting a plurality of removable racks or skewers for holding meat or other foods. There is a heat source, generally in the form of a gas fired firebox for burning wood or charcoal separated from the cooking chamber by a baffle. There is a circulating fan, operatively connected to a fan motor, positioned adjacent the baffle and above the rotisserie, the fan is optimally angled to circulate heat and smoke through the cooking chamber.
The oven includes a separate insulated compartment adjacent the cooking chamber that houses the oven control apparatus including appropriate operational electronics, the fan motor and a rotisserie drive motor. The oven includes a controller that operates the gas burner in response to thermostat settings and the operation of the rotisserie.
The rotisserie drive motor shaft includes a small sprocket that is operatively connected to a second, larger sprocket attached to one end of the rotisserie axle. In general the two sprockets are connected by a chain drive. The gear ratio between the two sprockets is such that the rotisserie turns at approximately four (4) revolutions per minute.
In one aspect, the opposite end of the rotisserie axle extends out of the wall of the oven to function as a power takeoff for mounting a food grinder or shredder.
A second fan, located in the insulated compartment and operatively connected to the fan motor, provides air circulation to keep the motors and the control electronics cool while the oven is in operation.
The oven is constructed from high grade stainless steel. Various components are bolted together using a uniform bolt pattern. The uniform bolt pattern allows the removable attachment of a plurality of accessories, such as shelves, work surfaces, sinks, receptacles, ancillary grills and the like to the outside walls of the oven.
The trailer comprises a trailer frame, wheels, tongue with trailer hitch and proper wiring for operation. The trailer can include a forward section for mounting propane gas tanks, a generator, an ice chest or other desired or useful devices.
The following is a detailed description of preferred aspects of the present invention including the best mode of carrying out the invention presently known to the inventor.
One aspect of the invention is a mobile food preparation apparatus, which may be referred to as an oven or a smoker, a barbeque, a rotisserie or any one of a number of common or colloquial names for devices designed to prepare or cook meats and other food items. The mobile oven of the present invention is indicated generally be reference numeral 20 in
It will be noted that oven 22 can function appropriately when mounted on trailer 24. The term trailer is used for simplicity, however, the term is intended to include any wheeled apparatus used to impart mobility to the oven, including a carriage or axles and wheels functionally associated directly with, or part of, the oven itself. As illustrated, trailer 24 can be of any appropriate design or configuration having a frame 25 with wheels 26. Trailer 24, as shown includes fenders 27, an elongated tongue 28 with a trailer hitch 30 of conventional design on the end of the tongue for attachment to a tow vehicle. In use the trailer can be unhitched and a depending wheel under the tongue lowered to support the trailer or the trailer can remained hitched to the tow vehicle during use of the oven. As illustrated, there are two propane tanks 32 secured on the forward end of the frame to provide fuel for the gas burner as will be explained. However, the forward end of the trailer can be configured to include other useful structures, such as an appropriately vented shroud over the propane tanks, an ice chest, a propane or electric powered refrigerated unit, a potable water storage tank or any other useful structures or elements.
Oven 22 is designed to prepare food products, generally by cooking with heat or flavored smoke or combinations thereof. A source of steam, such as a fluid reservoir, or a source of flavored smoke in the cooking chamber may be employed as well. The terms “food products” or “food product” is intended to include commonly prepared meats including, but not limited to, beef, pork, poultry, lamb, wild game, as well as fish or other seafood. The terms “food products” or “food product” also can include vegetables, such as ears of corn, potatoes, onions or any other product that may be prepared by one of heat, steam, flavored smoke, or any combination thereof. In other words, the terms “food products” and “food product” is intended to encompass any items prepared in the oven.
As shown, oven 22 includes a cabinet 34 having a first side wall 36, an opposite side wall 38, a back wall 40, a top wall 42 and a bottom wall (not seen). The bottom wall includes a waste product drain hole (not seen). The cabinet includes a front wall 44 with a vent 45 (
As best seen in
Referring to
A rotisserie 64 is rotatably mounted between the two side walls. Rotisserie 64 includes a first end plate 66 and a second end plate 68. The end plates are substantially octagonal in shape having angles A2 that are substantially similar to the angle of rear wall. This complementary angle configuration provides easier access to the rotisserie through opening 56. First end plate 66 has a plurality of circular spit mounting holes 69 evenly spaced around the circumference of the plate. It also includes a plurality of evenly spaced cylindrical mounts or pins 70 that extend inwardly. Second end plate 68 includes a plurality of generally V-shaped spit mounting slots 72 evenly spaced around the circumference of the plate with one V-shaped slot 72 aligned with one hole 69. Second plate 68 also includes a plurality of evenly spaced cylindrical pins 74 extending inwardly, one each of the pins 74 corresponding to one pin 70 on the first plate. There is an axle 76 that extends between the two plates. A first end of axle 76 extends through side wall 36 and is operatively attached to an external sprocket 78, as see in
Rotisserie spits 82 extend between the first and second end plates of the rotisserie. Spits 82 are unique in that they have substantially V-shaped cross section. A first end of the spit has a taper 83 that terminates in a short, substantially cylindrical tip 84 that engages a hole 69 in the first plate. The opposite end of the spit is a V-shaped end 85 that engages a V-shaped slot 72 in second end plate 68. As shown, the rotisserie of the present invention provides for twelve (12) spits, with eight (8) spits in an outer circle of spits and four (4) in an inner circle of spits.
The V-shaped spits are particularly adapted for the cooking of whole chickens. The spit can be inserted through the chicken. Tip 84 and taper 83 facilitate insertion of the spit through the chicken body. Several chickens can be mounted on a single spit, if desired. It will be understood that the V-shaped cross-section of the spit keeps the chicken the spit from rotating or spinning on the spit as the rotisserie rotates within the cooking chamber during cooking, which could result in the chicken having the same orientation throughout the cooking cycle. The orientation of entire chicken rotates as the rotisserie rotates and at a desired speed that will be discussed below. This optimum rotation of the chicken with the rotisserie while not freewheeling on the spit during cooking results entire surface of the chicken being optimally exposed to heat and smoked and allows juices that seep from the chicken to baste the chicken as it rotates through the cooking cycle. This self-basting aspect of the oven provides for a more evenly cooked and juicy chicken product. Moreover, the novel design allows chickens to be loaded on twelve (12) spits while avoiding touching, which may interfere with thorough, even cooking.
It will be understood that although the figures show the novel V-shaped spits, other configurations of spits can be employed, for example, more conventional two point or forked spits also could be used.
Referring to
Referring to
Compartment 98 houses a second or rotisserie drive motor 108. Motor 108 includes a shaft 110 connected to a small sprocket 112. Referring to
Compartment 98 includes other conventional electrical components known to the art, for example, thermostats, on/off switches and so forth. The components can be attached to an external electrical source by a power cord C attached to a pigtail 115. Alternatively, a generator can be mounted on trailer 24 to operate the oven. In another aspect, the generator can be propane fueled and propane tanks 32 can be used to operate the generator to generate electricity to operate the over. External controls 116 are shown in
Cooking heat is provided by firebox 47. As set out above, firebox 47 protrudes slightly out of wall 38 and includes door 48. The face 124 of firebox 47 defines an opening 125 into the firebox with a fireproof seal 126 around the opening. The firebox and opening 125 have a substantially elongated hexagonal configuration. Door 48 has a complementary elongated hexagonal extension 128 on the inside surface that fits snugly into opening 125 when the door is closed. Door 48 includes a handle 130 that rotates into catch 132 on the front of the firebox to hold door 48 tightly against seal 126. Firebox 47 includes a plurality of openings 133 in a top wall that open into the cooking chamber to provide heat and smoke.
There is a propane gas burner 134 positioned on the back wall of the firebox. Burner 134 is operatively connected to the propane tanks 32 on the trailer. Burner 134 also is operatively attached to a thermostat 136 located in the cooking compartment (
The first end or the end of the fuel receptacle closest to the door has a slot 142 that can function as a handle if the receptacle is not hot. The opposite end of the fuel receptacle is an open end 143. As seen in
As set out above, there are numerous accessories that can be used with the oven of the present invention. Because the pattern of bolts 49 is uniform around oven 22, accessories, such as versatile removable work surfacees can have a uniform mounting hole pattern which allows for attachment at multiple places on the oven walls
As seen in
Referring to
In another aspect, referring to
In another aspect of the invention, a large, deep pan, for example a steam table pan, could be bolted to oven 22, for example, at wall 38. The pan can be filled with charcoal and a grate placed over the pan to provide an open air barbeque grill for brazing or cooking on barbeque sauce. Moreover, the pan can be equipped with a gas burner to provide a gas grill on the side of oven 22. Hence the removable work surfaces that can be attached to the oven are versatile and generally limitless in application.
In another aspect of the invention substantially rectangular shroud 150 is mounted on top wall 42. The shroud comprises a top wall, a rear end wall and two side walls. The top wall can be vented. It does not have a front wall or bottom wall. Top wall 42 of oven 22 functions as the bottom wall. The shroud has a frame around the open front that could accommodate two pans in a stacked, but separated, arrangement. A pan, for example, an 18 inch by 26 inch steam table pan containing water, is slipped into the shroud to sit on the top of the oven. A second pan containing cooked food is slipped into the shroud above the pan of water. Heat from the oven top heats the water in the lower pan and consequently, keeps the food in the upper pan warm and moist. The shroud can include a thermostat.
In another aspect, oven 22 can bear customized indicia, as shown by number 154. One particularly appropriate way of forming the indicia is to cut out indicia in panel 79 by use of a laser or the like. A contrasting color panel can be affixed to the back side of the panel to create highly visible indicia 154.
It will be appreciated from the foregoing that various changes and modifications may be made in the mobile oven of the present invention without departing from the scope of the invention. Therefore, the foregoing description and accompany figures should be viewed as illustrative only and should not be construed in a limiting sense.
This application claims the benefit of provisional application Ser. No. 61/362,359, filed Jul. 8, 2010, which is incorporated herein by reference.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US2011/042602 | 6/30/2011 | WO | 00 | 1/30/2013 |
Number | Date | Country | |
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61362359 | Jul 2010 | US |