Simplified device to quickly cook food

Information

  • Patent Grant
  • 7739948
  • Patent Number
    7,739,948
  • Date Filed
    Monday, April 16, 2007
    17 years ago
  • Date Issued
    Tuesday, June 22, 2010
    14 years ago
Abstract
A device to bake farinaceous foods such as cakes, cookies, breads, pies, and pizzas more rapidly and flavorfully, with retention of desire food textures and reduced risk of burning by the use of intermittent application of radiant energy. The preferred embodiment rotates farinaceous ingredients in front of a radiant heat source. The preferred embodiment may control oven temperatures by regulating the amount of outside cool air fan forced into the oven cavity.
Description
FIELD OF THE INVENTION

The present invention relates to devices to bake and cook foods, and more particularly to devices that use: food movement, radiant energy, and heat energy to bake and cook farinaceous and other food products.


BACKGROUND OF INVENTION

Baking of farinaceous foods such as cakes, cookies, breads, pies, and pizzas, has changed little in the last several hundred years. Modern ovens still heat air inside a cooking cavity and transfer cooking energy to the farinaceous article being baked using the heated air.


There are several problems with this method of cooking. First, ovens using this method are inherently slow because they must, in sequence, activate a heater, such as an electrical coil, which then heats air, which then moves to the food being cooked, and transfers its heat to the food being cooked. Each step in this process is time consuming resulting in a long overall process. The process is also very inefficient.


Current variations on this method include moving the hot air inside the cooking cavity by using a fan, also referred to as convection cooking, and by using microwave energy to help speed the baking process.


Adding air movement, as in convection cooking, only helps reduce the time it takes to move the hot air from the heater to the food being cooked and to transfer the heat from the hot air to this food. The heater must still be activated to heat the air used to cook the food.


Adding microwave cooking to conventional ovens reduces baking times, but may unfavorably change the taste and texture of the foods being cooked, as for example, by making bread become rubbery.


What is needed is a method of cooking cakes, cookies, breads, pies, and pizzas as well as other foods, which reduces cooking times and increases cooking efficiency, while maintaining or enhancing food textures and flavors. A further benefit of the this method should be that it is simple to use and forgiving to an unskilled user. Versatility in offering other modes of cooking would also be desirable.


SUMMARY OF THE INVENTION

A preferred embodiment of the method of cooking of the present invention uses intermittent exposure to a radiant heat source to quickly and flavorfully bake foods and especially farinaceous foods such as cakes, cookies, breads, pies, and pizzas. In the preferred embodiment, foods to be baked are rotated in front of a glowing electric heat coil. By exposing foods to be baked intermittently to radiant heat rather than using other baking methods such as those described above, cooking times may be diminished, risks of foods being burned can be reduced, total energy conveyed to the food may be increased, and flavor and texture can be enhanced.


A cycle where the food is exposed to radiant heat about 20% to 70% of the cycle is advantageous in achieving the above results. More than 70% results in burning similar to using steady radiant energy, and less than 20% generally significantly increases cooking times.


Likewise a cycle time between 15 and 60 seconds helps in optimizing the above results. Again, less than 15 seconds tends to burn the food being baked. More than 60 seconds may increase cooking times significantly. More than 60 seconds may also increase the tendency of foods to burn.


Radiant transfer of heat is among the fastest and most efficient means of transferring cooking energy. It eliminates the baking and cooking steps of heating air and then having the hot air heat the foods being cooked. Instead energy is transferred directly from a radiant source to the food being cooked with no intermediate steps.


However, generally radiant cooking burns the surface of the food being cooked while leaving food interiors unheated. This can easily be seen when cooking foods over a campfire or under an oven broiler. This is especially true when baking farinaceous foods such as cakes, cookies, breads, pies, and pizzas.


Cycling radiant energy intermittently on and off gives time for radiant heat energy to be absorbed into foods being cooked while not over-heating their exterior surfaces. As an example, when foods are placed in continuous contact with radiant energy, such as under an oven broiler, their surfaces heat very quickly often forming a crust that may burn. Cycling radiant heat gives a chance for heat to penetrate into the food while not over-heating the food's surface.


The preferred embodiment may be used for types of cooking other than baking farinaceous foods. As examples it may be used to rotisserie cook meats, vegetables, and other foods; either vertically or horizontally and it may be used to bake or broil foods on a fixed shelf by steadily or intermittently activating the radiant heater. When intermittent activation is made, best results are achieved by employing the above described duty cycles and cycle times.


Shifting between horizontal and vertical cooking and rotisserie modes merely involves tipping the cooking device over 90 degrees. Depending on embodiment size, this may be a simple hand operation tipping the device from resting on one face to resting on an adjoining face.


The preferred embodiment has an air movement system that helps speed cooking by circulating air past foods being cooked.


This system allows a greater amount of radiant heat to be used in cooking by introducing cool outside air into the oven cavity to lower dangerously high oven temperatures. This system controls oven temperatures by regulating the amount of cooler outside air introduced into the oven cavity through use of an air valving mechanism. This system also allows operation of the oven below over-counter kitchen cabinets by dissipating hot air through air exits located in the lower portion of the oven away from overhead cabinets.


Likewise this system reduces exterior wall temperatures by dissipating heat released from the oven cavity over large exterior side wall surfaces rather than just venting very hot stratified hot air from the top of the oven.


This air movement system is simple in construction, using a motor drive mechanism to propel a guarded radial fan blade with user controlled variable openings to regulate the amount of cool outside air introduced into the oven cavity.


When combined with moving food, as an example rotating food past a radiant heater, this simple hot air movement system makes baking and cooking in general surprisingly even within the cooking cavity while substantially decreasing cooking times when compared to conventional convection cooking. As an example, an angel food cake which normally takes 29 to 36 minutes to bake can be finished to a tasty golden brown in just 18 minutes.


Conventional convection baking takes significantly longer (generally about 21 minutes).


Convenience is enhanced by a simple cantilever shelf mounting mechanism which has no center pole and only one side-mounted vertical support member which easily swings into place in the oven cavity to mount. Likewise the vertical and horizontal mounting of spits for rotisserie cooking is easily accomplished through a similar rotation into place of the spit rod within the oven cavity.


The shelf height within the oven cavity is easily adjustable through use of multiple mounting holes on the vertical support member. A removable oven wall allows an extended wall 38 to be mounted to the oven thus increasing the size of its oven cavity to handle larger food items such as a large turkey while limiting the overall size of the embodiment during the majority of its uses.


Even baking is further enhanced by introduction of a metal skirt around the cooking shelf. This blocks radiant energy from the heater which otherwise might burn the outer edges of food articles. Cleaning the oven is made easier by removable walls and a removable drip tray.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a perspective view of a preferred embodiment of the present invention with the front door open and showing the cooking shelf, drip tray and heater inside.



FIG. 2 is a partial detail view shown in perspective of the drive arm and cooking shelf showing how the cooking shelf attaches to the drive arm.



FIG. 3 is a cross-section view of the drive arm and cooking shelf of FIG. 2 taken along line 3-3.



FIG. 4 is a cross-section view taken along line 4-4 of FIG. 1 showing how the drive arm is mounted into the oven cavity.



FIG. 5 is a front view of the oven FIG. 1 showing it being used to bake using its cooking shelf and drip tray.



FIG. 6 is a front view of the oven of FIG. 1 showing it being used for vertically rotisserie cooking a turkey.



FIG. 7 is a front view of the oven of FIG. 1 showing it being used for horizontally rotisserie cooking a turkey.



FIG. 8 is a front view of the oven of FIG. 1 showing it being used for horizontally rotisserie cooking a large turkey using an extension to the oven cavity.



FIG. 9 is an exploded perspective view of the motor drive mechanism of the oven of FIG. 1.



FIG. 10 is a front view of the oven of FIG. 1 being used with a fixed shelf.



FIG. 11 is a perspective view of an alternative embodiment positioned for horizontal rotisserie cooking.



FIG. 12 is a perspective view of the oven of FIG. 11 with its door opened and positioned for grilling and convection baking.



FIG. 13 is a perspective view of a rotisserie holder showing a turkey shown in phantom in being held for rotisserie cooking.



FIG. 14 is a partial detail side view of FIG. 13 illustrating how the rods are held in the rotisserie holder.



FIG. 15 is an exploded perspective view of the drip pan and optional drip pan cover.



FIG. 16 is a cross section view through the drip pan and optional drip pan cover taken along line 16-16 of FIG. 15 showing the pan position while grilling food on a wire shelf, and in dotted lines, the position of the drip pan and optional drip pan cover while baking cakes, cookies, etc.



FIG. 17 is a front view of the oven of FIG. 11 positioned for horizontal rotisserie cooking.



FIG. 18 is a front view of the oven of FIG. 11 positioned for vertical rotisserie cooking.



FIG. 19 is a front view of the oven of FIG. 11 positioned for grilling and baking.





DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 10, a preferred embodiment 20 of the present invention comprises a generally rectangular enclosure 64 with a demountably hinged transparent plastic front door 22 (see FIGS. I and 4).


Although the embodiment may be constructed at any scale, referring to FIG. 1, a height of about 15 inches, a width of about 14 inches, and a depth of about 12 inches would be advantageous when using the embodiment on a kitchen counter top. Such dimensions leave adequate space to safely clear overhead cabinets without touching or conveying unsafe amounts of heat, while also allowing counter space in front 80 of the embodiment for working, and while maximizing oven cavity space for baking and rotisserie cooking large food items such as a 13 pound turkey in the embodiment's standard mode or a 20 pound turkey in the embodiment's extended mode using the embodiment's extension 38.


The enclosure 64 has double walls on all sides except the e front 80 which is closed by the plastic front door 22. Referring to FIG. 1, the outer side walls 65, 66, 67 are molded integrally with the bottom outer wall 68 and lower portion of the front wall 70. This integral molding promotes strength while use of ventilated 82 plastic along with the fan 50 drive and ventilated 78 inner walls 76 helps keep outer side walls 65, 66, 67 cooler to the touch.


A metal floor 72 is positioned above the bottom outer wall 68 with the motor drive mechanism 40 and a timer 74 mounted in the space between the floor 72 and bottom outer wall 68.


A removable metal generally “U” shaped inner skin 76 bends inside of the three outer side walls 65, 66, 67 and forms the inner of the double side walls of the enclosure 64. This inner skin 76 is shiny on its surface facing the cooking cavity 32 and has vents 78 (see FIGS. I and 5) along portions of its edge which are adjacent to the metal floor 72 and are in the lower portion of the oven cavity 32 both when the embodiment is being used in either its vertical (FIGS. 1, 4, 5 and 6) and horizontal (FIGS. 7, 8 and 10) operating modes.


During operation, the embodiment vents hot air out of the oven cavity 32 in response to cool outside air being introduced into the oven cavity 32 by the fan 50. This exiting hot air passes through the vents 78 in the inner side walls 76 and out through slots 82 in the outer side walls 65, 66, 67. This venting along with the fan 50 induced air movement helps control and even out oven and outer wall 65, 66, 67 temperatures. It also helps reduce humidity within the cooking cavity 32.


Referring to FIG. 1, the top of the embodiment is capped by a twin-skinned removable oven wall 58. The inner skin 84 of this wall 58 is made of metal while the outer skin 86 is made from molded plastic that has extensive venting 88 across its surface.


As shown in FIG. 8, this removable oven wall 58 may be replaced with an extension 38 to enlarge the oven cavity 32 to cook more food or to cook larger articles of food such as the large turkey 36 illustrated in FIG. 8.


The removable oven wall 58 is held in place with four finger operated screws 59. This wall 58 may be removed for dishwasher or other cleaning, or for other purposes.


Removing this capping wall 58 also allows the “U” shaped inner skin 76 to be lifted out of the oven cavity 32 for dishwasher or other cleaning, or for other purposes.


Located in the metal floor 48 of the oven cavity 32 are: the plug receptacle 90 for the heat coil 28, the rod drive socket 42, and the fan 50 covered by the fan cover 54.


The heat coil 28 is plugged into the plug receptacle 90 and rises orthogonal to the metal oven floor 48 into the oven cavity 32 and adjacent to one of its 32 sides (see FIG. 1).


A shelf 24 supporting drive arm 30 or a cooking spit 92 may be inserted into the rod drive socket 42 by first pushing one end of either the arm 30 or the spit 92 into a central hole 94 in the capping wall 58 (see FIG. 4), then swinging the opposite end over the drive socket 42 (see FIG. 4), and then lowering this opposite end into the socket 42. Annular grooves 45, one each located near either end of the drive arm 30 or spit 92, locate the arm 30 or spit 92 into the central hole 94 in the inner skin 84 of the capping wall 58 and prevent lateral movement which would disengage the drive socket 42 from the drive arm 30 or spit 92 when the embodiment is operated in the horizontal mode as illustrated in FIGS. 7 and 8. Gravity prevents the arm 30 or spit 92 from dislodging from the socket 42 when the embodiment is operated in its vertical mode as illustrated in FIGS. 1, 4, 5 and 6.


The food support shelf 24 conveniently is cantilevered off the crankshaft shaped drive arm 30 (see FIGS. 1 and 2). This makes the entire shelf useable with no central support member, and allows easy access to the shelf 24 (or shelves) around over 350 degrees of its 24 (or their) perimeter(s).


The drive socket 42 is driven at about three RPM by a gear 46 reduced motor 43 drive.


A drip tray 26, which makes cleanup easier, may be mounted to the drive arm 30 in a similar manner to the food support shelf 24. This tray 26, like the shelf, may be conveniently removed for dishwasher or other cleaning, or for other purposes.


Holes 62 in the drive arm 30 engage a pin 96 coupled to the shelf 24 and permit the shelf 24 to be raised or lowered or removed. The shelf 24 is further steadied and supported by a shallow “U” shaped channel 100 attached to the shelf's 24 outer skirt 98. Mounting the shelf 24 is illustrated in FIG. 3. The pin 96 is inserted into a hole 62 when the shelf 24 is in a raised position. The shelf 24 is then lowered, engaging the channel 100 around the inside surfaces of the drive arm 30 and securing the shelf 24 in position for cooking.


The skirt 98 helps even out radiant baking and cooking by controlling exposure to radiant heat foods receive particularly next to the outer perimeter of the shelf 24. The skirt 98 thus helps make baking and cooking even and consistent across the entire surface of the shelf 24 by blocking some of the harshest radiant heat. The top and/or bottom of this skirt 98 may have holes, slots or other contours to balance the radiant cooking energy received by the foods being cooked.


A conventional rectangular drip tray may be used in the bottom of the oven cavity 32 to help in cleanup when the embodiment is operated in its horizontal mode as illustrated in FIGS. 7, 8 and 10.


Oven temperatures may be controlled by the amount of outside cool air introduced into the oven cavity 32 by the fan 50. Holes 102 located in the oven floor 48 directly below, and midway out, the fan blade 50 permit outside cool air to be pulled into the oven cavity 32 by the fan 50.


An air valve plate 52 located just beneath these holes 102 is penetrated by openings 104 which align with the holes 102 in the oven floor 48. This plate 52 may rotate 106 about a central axis 108 regulating the amount of air which may pass through the holes 102 in the floor 48. This is as a result of the rotation 106 of the valve plate 52 causing holes 102 in the floor 48 to come into and out of alignment with the openings 104 in the valve plate 52.


The more cool outside air which passes into the oven cavity 32 through the holes 102 in the oven floor 48, the cooler the oven cavity 32 becomes. Valve plate 52 rotation is controlled by a lever 110 which passes through the lower front wall 70 of the embodiment (see FIG. 1). Movement of this lever 110 thus regulates oven temperature.


Rotisserie cooking on a horizontal spit has long been recognized for superior flavor and its health benefits. Rotisserie cooking on a vertical axis is less popular but is used in several Middle Eastern dishes. It too generally has outstanding flavor and many health benefits. Both forms of rotisserie, horizontal and vertical, have unique character and advantages touted by their chef users. As an example, horizontal rotisserie generally self baste, where vertical rotisserie baste far less.


The preferred embodiment offers both vertical and horizontal rotisserie cooking thus offering the unique advantage of both.


A timer 74 also is located adjacent to the temperature control lever 110 in the lower front wall 70. This timer may be set for a predetermined period and automatically turns the embodiment off when the period expires. This timer also has a feature allowing the oven to be left on for an undetermined time span.


Embodiment operation is simple. The door 22 is opened and food to be baked or cooked is placed on a shelf 24 or on a spit 92 inside the oven cavity. The door 22 is then closed and the oven temperature is set using the lever 110 located on the front 70 of the embodiment. The timer is set and the user is then free to walk away. When the cook time is completed, the timer sounds and automatically turns the embodiment off. The food is then removed and eaten.


Cleanup, when necessary, is accomplished by removing the shelf 24 and drive arm 30 or spit 92, demounting the removable oven wall 58, and lifting out the “U” shaped removable inner skin 76. These can then be cleaned and reassembled.


An alternative preferred embodiment 120 is illustrated in FIGS. 11 to 19. As shown in FIGS. 17, 18 and 19, this embodiment 120 may be operated in at least three positions simply by resting the unit on different sides.


The first (FIG. 17), locates the heat rods 140 on the roof of the cooking chamber 142 and is suitable for horizontal rotisserie cooking and broiling. As examples, in this position, the rotisserie support apparatus 124 shown in FIGS. 13 and 14 could be used in the cooking chamber 142 to horizontal rotisserie cook shish Kabobs, a roast, a turkey or other food. Also in this position a wire shelf could be positioned below the heat rods 140 to broil a steak or other foods.


The second cooking position is depicted in FIG. 18. Here foods may be cooked on a vertical rotisserie spit. As examples, again using the apparatus 124 shown in FIGS. 13 and 14, a leg of lamb, a roast, a turkey or shish Kabobs might be vertical rotisserie cooked


Also in this position (FIG. 18) foods such as cookies, cakes, pizzas, etc. may be radiantly baked, as examples, using round wire shelves resting on legs above the drip pan 144 portion of the apparatus 124. Radiant baking is accomplished in this mode by rotating the food in front of the heat rods 140. Intermittent exposure to radiant heat from the heat rods 140 caused by the food rotation minimizes the chance of burning and may significantly reduce cooking times.



FIG. 19 shows a third cooking position for the embodiment 120. Here the heating rods 140 are positioned just above the floor 144 or the cooking cavity 142 (see FIG. 16).


In this position (FIG. 19) foods may be grilled or baked. As an example, hot dogs or hamburgers or buns 134 might be grilled or cooked on a wire shelf 136 positioned over the heat rods 140 as shown in FIG. 16 either with the door 122 opened (FIG. 12), removed, or closed.


As another example, as shown in FIG. 16 in dotted-lines, the drip tray 130 may be positioned over the heat rods 140 to help make baking in this position (FIG. 19) on wire shelves above the drip tray 130, such as baking of cake and cookies, more even.


The door 122 on this as well as the earlier embodiment 22 is clear and a light 146 mounted in one of the side walls of the oven cavity 142 illuminates the oven cavity 142 and the food cooking within it. This results in the cooking process being a visually stimulating show exhibiting the chefs prowess and enhancing appetites. The movement of rotisserie and radiant cooking may further enhance this show.


The embodiment 120 may use a rotisserie drive mechanism similar to that illustrated in FIG. 9 which provides: fan 50 forced convection cooking, controllable outside air introduction 102104110, and rotisseries rotary drive 42 from a in a simple compact package having only a single motor 43.


The embodiment 120 may also use the rotisserie holder 124 shown in FIGS. 13 and 14. This holder 124 provides several features. First, as shown in FIG. 18, it allows the rotisserie drive mechanism, such as an example illustrated in FIG. 9, to be mounted above foods being vertically rotisserie cooked.


Mounting the rotisserie drive mechanism above food being vertically rotisserie cooked helps prevent water and grease from dripping into and damaging the drive mechanism. It also allows controls, such as thermostats 154 and timers 156, to be mounted in a single, simple, inexpensive module 148 with the drive mechanism, where, when vertical rotisserie cooking is being performed, the controls can be easily viewed and manipulated on the top of the embodiment 120 (see FIG. 18).


The end plates 170172 of the rotisserie holder 14 may have many rod 128 mounting holes 158160. Having many holes 158160 to mount support rods 128 means the rotisserie holder 124 may hold a broad variety of foods either while rotating about a vertical or a horizontal axis. FIG. 13 shows in dotted lines a turkey 126 being supported. By moving the rods 128 a smaller bird such as a chicken, or a steak, or a fish, as examples, might be supported.


Using the rods 128 to cage the foods being rotisserie cooked provides additional advantages of tending to center the foods about the rotisserie axis. Mounting foods on traditional rotisserie spits usually results in the foods being off this center. This causes uneven cooking, and, particularly in horizontal rotisserie cooking, puts strain on motor and drive mechanisms from foods straining to be lifted to the top of the rotisserie arch and then flopping over the top.


Caging rotisserie-cooked foods may hold them firmly, by compressing the foods or by the rods 128 bending like springs around the foods. It may also hold the foods loosely like contents inside a partly full glass cylindrical jar. Where contents are held loosely, they may rotate and roll within the cage created by the rods 128 as the rotisserie rotates, particularly if the rotisserie rotates about a horizontal axis.


This may help cook some foods, as examples nuts and vegetables, more evenly.


Using this caging rotisserie support is easy. The user inserts rods 128 between the two end plates 170172 so that the rods 128 form the bottom half or three-fourths of the food support cage. The food is then dropped into this basket-like cradle and the remainder of the rods 128 are inserted.


The rotisserie holder 124, in vertical rotisserie cooking, can integrally provide a horizontal drip pan 150 (see FIGS. 13 and 18) which can also act as a stable horizontal support surface for food and food support shelves. This eliminates the need for additional parts which provide similar functions.


The rods 128 may also be used as shish kabob sticks. The holder 124 may support many such shish kabob sticks providing capacity exceeding traditional kabob holders. As an example, rods 128 used as kabob holder may be mounted around the perimeter as well as in the interior of the holder 124.



FIG. 15 shows a drip pan 130 with a corrugated floor 162. The raised portions 164 of this floor 162 are designed to align with the heat rods 140 when the pan 130 is placed in the oven cavity 142 to catch dropping grease, oil and debris. When the pan 130 rests below the heat rods as shown in FIG. 16, these raised portions 164 of the pan floor 162 tend to shed grease, debris, and drippings away from being directly beneath the heat rods 140 where they have the greatest tendency to burn and smell.


The optional drip pan cover 132 helps reduce splattering which occurs, as an example, when water drips into hot oil contained in the drip pan 130. This cover also has a corrugated surface 166 that aligns with the heat rods 140 to shed grease, oil and debris away from being near the heat rods 140. This again helps minimize smoke and smell.


Holes 168 in the troughs of the corrugated drip pan cover allow liquid to drain into the drip pan 130 while minimizing the space splattering can spray out of.


As shown in dotted lines in FIG. 16, the drip pan 130 and optional drip pan cover 132 may be mounted above the heat rods 140. This may be used to help even cooking heat distribution and minimize burning from food being directly exposed to radiant energy from the heat rods 140.


When above the heat rods 140, the raised portions 164 of the drip pan 130 perform a similar function to when they are below the rods 140, that is they shed debris away from being close to the heat rods 140 where debris can cause smoke and smell.


The embodiment 120 has both a timer 156 and a thermostat 154 (FIG. 11). The timer has a steady “on” position as well as time increments up to 120 minutes marked. At the end of any set time increment, the timer sounds a tone and turns off the embodiment.


The thermostat 154 has settings ranging from 100 to 450 degrees F. When oven temperatures exceed the thermostat 154 setting, the thermostat 154 turns off power to the heat rods 140.


The lower temperatures may be suitable for dehydrating foods such as making banana chips, dried apricots, spices, beef and other jerkies, etc. It could also be used for making cultured products such as yogurt and cheeses as well as for heating baby bottles etc. The higher temperatures are needed for baking pizzas, cookies etc.


Alternatively, when the thermostat 154 setting is exceeded, a solenoid could activate 106 the valve plate 52 shown in FIG. 9 so cool outside air is introduced into the oven cavity 142. This would lower oven temperatures while leaving the heat rods 140 activated and thus still cooking through use of radiant energy.


Using the second embodiment 120 is easy. The user places the food to be cooked into the oven cavity 142 on either a rotating 124 or fixed 136 food support. The oven door 122 is closed and the thermostat 154 set. Setting the timer 156 turns on the embodiment 120. At the end of the cooking time the timer sounds and the embodiment 120 turns itself off. The door 122 is opened and the food is removed. Cleanup is easy as the interior walls are coated with a nonstick heat resistant coating.


Different materials may be used to construct the embodiment 120. As examples, 26 gauge painted aluminized steel might be used for embodiment inner and outer oven walls, with non-stick coating used on the inside oven walls. The housing covering the motor drive (FIG. 9), thermostat 154 and timer 156 might be molded from polycarbonate which is capable of withstanding the 225 degree F. heat at that location.


The transparent door 122 might be constructed from tempered glass framed with a silicone glued polysolphone plastic frame. This frame has hinges that can be detached from the rest of the embodiment. The door 122 may thus be removed for cleaning or while grilling (FIG. 19) or for other purposes.


Other materials might also be suitable for the applications described.


What has been herein described is one preferred embodiment of the present invention. Many changes, alterations or modifications to this preferred embodiment will be apparent to one skilled in the art. As examples: dimensions may be greater or lesser than those indicated, such as a wall mounted unit the size of a standard wall mounted home oven or a standard sized toaster with elements which only intermittently radiate heat which more evenly cooks toast with less chance of burning; materials may be altered such as use of glass in the front door or steel or stainless steel (which is generally cooler because of it poor ability to conduct heat) for the outer wall of the enclosure 64; etc.


These and many other changes and alterations are obvious and thus should be considered as part of the description herein which shall be limited in scope and coverage only by accepted claims and their equivalents.

Claims
  • 1. A food cooking device comprising: an enclosure that includes a bottom section and a top section,wherein the bottom section comprises a bottom outer wall, three side outer walls extending upwardly from the bottom outer wall and a door,wherein the top section includes a first top wall that is secured to the bottom section,a heat source disposed in the enclosure,a motor disposed in the enclosure adjacent the bottom outer wall, wherein the motor includes a rod drive socket, anda drive arm disposed in and removable from the drive socket, wherein the drive arm includes a bottom portion that is received in the drive socket, a top portion that is received in an opening in the top wall, and an offset portion, wherein the bottom portion and top portion are axially aligned and define a drive axis, wherein the offset portion is offset from the drive axis, wherein the offset portion includes a food support shelf extending generally orthogonally therefrom,wherein the motor rotationally drives the drive arm, thereby causing the offset portion to define a 360° path.
  • 2. The food cooking device of claim 1 wherein the first top wall is removable.
  • 3. The food cooking device of claim 1 wherein the first top wall can be replaced by a second top wall, and wherein when the enclosure includes the first top wall the enclosure defines a first volume therein and when the enclosure includes the second top wall the enclosure defines a second volume therein, and wherein the second volume is greater than the first volume.
  • 4. The food cooking device of claim 1 wherein the center of the 360° path is axially aligned with the drive axis.
CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a continuation of U.S. patent application Ser. No. 10/039,395, filed Nov.7, 2001; which is a continuation of U.S. patent application Ser. No. 09/409,172, filed Sep.30, 1999, now abandoned; which is a continuation of U.S. patent application Ser. No. 08/889,021, filed Jul. 7, 1997, now abandoned; the entireties of which are hereby incorporated by reference.

US Referenced Citations (372)
Number Name Date Kind
199712 Horrocks et al. Jan 1878 A
251657 Van Dec 1881 A
257609 Porter May 1882 A
427671 Carpenter May 1890 A
442758 Soden Dec 1890 A
504256 Strong Aug 1893 A
553363 Sickels Jan 1896 A
559720 Lacroix May 1896 A
616694 Arnold Dec 1898 A
616964 Pickett Jan 1899 A
693725 Leland Feb 1902 A
714430 Worley et al. Nov 1902 A
807162 Gardner Dec 1905 A
848018 Engelhard Mar 1907 A
904382 Van Patten Nov 1908 A
961543 Sidgreaves Jun 1910 A
1045049 Longfellow et al. Nov 1912 A
1063516 Dunn et al. Jun 1913 A
1093883 Raillere Apr 1914 A
1584121 Moecker, Jr. et al. May 1926 A
1666394 Miglin Apr 1928 A
1723704 Morgan Aug 1929 A
1786300 Harrison Dec 1930 A
1976989 Grimes Oct 1934 A
1993607 Kalgren Mar 1935 A
2012811 Duffy Aug 1935 A
2048769 Anderson Jul 1936 A
2085169 Prood Jun 1937 A
2102097 Sherman Dec 1937 A
2130259 Bonaguidi Sep 1938 A
2133667 Mitchell Oct 1938 A
2136658 Westberg et al. Nov 1938 A
2142390 Zerr Jan 1939 A
2245220 Nelson Jun 1941 A
2297825 Bobo Oct 1942 A
2472164 Mannheimer Jun 1949 A
2501104 Smith Mar 1950 A
2502685 Warner Apr 1950 A
2565967 Jones Aug 1951 A
2607286 Krissel Aug 1952 A
2616360 Thompson Nov 1952 A
2618730 Panken Nov 1952 A
2619951 Kahn Dec 1952 A
2638841 Boyce May 1953 A
2649852 McCandless Aug 1953 A
2681001 Smith Jun 1954 A
2696163 Galley Dec 1954 A
2701516 Dorsey Feb 1955 A
2705450 Steinbook Apr 1955 A
2722882 Wilson Nov 1955 A
2727315 Candor Dec 1955 A
2754401 Edelman Jul 1956 A
2759411 Jenson Aug 1956 A
2760428 Boyajian Aug 1956 A
2762293 Boyajian Sep 1956 A
2809579 Theisen Oct 1957 A
2811099 McGoldrick Oct 1957 A
2815707 Morrow Dec 1957 A
2821187 Tescula Jan 1958 A
2827847 Shafter Mar 1958 A
2828733 Moore, Jr. Apr 1958 A
2831420 Radman Apr 1958 A
2831421 Mele Apr 1958 A
2839989 Persinger Jun 1958 A
2846941 Goodwin Aug 1958 A
2851575 Walston et al. Sep 1958 A
2867163 Bloom Jan 1959 A
2882812 Greenwald Apr 1959 A
2885950 Stoll et al. May 1959 A
2887944 Walker May 1959 A
2888872 Bathe Jun 1959 A
2895408 Glenny Jul 1959 A
2898437 McFarland Aug 1959 A
2917988 Harris Dec 1959 A
2925081 Shooter Feb 1960 A
2938450 Carpenter et al. May 1960 A
2939383 Kanaga Jun 1960 A
2940380 Rampel Jun 1960 A
2979053 Crispell et al. Apr 1961 A
2983218 Persinger et al. May 1961 A
3025783 Coudek Mar 1962 A
3045581 Bernstein Jul 1962 A
3070953 Carrel Jan 1963 A
3074360 Vaughan Jan 1963 A
3079208 Compton Feb 1963 A
3085500 Russell Apr 1963 A
3100435 Mobley, Jr. Aug 1963 A
3103161 Whitehead Sep 1963 A
3104605 McKinney Sep 1963 A
3121424 Russell Feb 1964 A
3125015 Schlaegel Mar 1964 A
3126814 Brown Mar 1964 A
3127889 Mills Apr 1964 A
3129653 Kertesz Apr 1964 A
D199712 Elliott Dec 1964 S
3181453 Moran May 1965 A
3182585 Rensch et al. May 1965 A
3188939 Smith Jun 1965 A
3196776 Norton Jul 1965 A
3205812 Booth Sep 1965 A
3215338 Schirmer Nov 1965 A
3240147 Farber et al. Mar 1966 A
3248518 Ogle, Jr. et al. Apr 1966 A
3269299 Nielsen Aug 1966 A
3276351 Sundholm Oct 1966 A
3285238 Norlie Nov 1966 A
3315591 Elliott Apr 1967 A
3329082 Satkunas Jul 1967 A
3333529 Wilson Aug 1967 A
3335712 Marasco Aug 1967 A
3348471 Lackenbauer et al. Oct 1967 A
3355573 Wilson Nov 1967 A
3362320 Marasco Jan 1968 A
3473464 Lasker Oct 1969 A
3503323 Swetlitz Mar 1970 A
3511170 O'Connor May 1970 A
3527155 Renn Sep 1970 A
3529536 Milhem Sep 1970 A
3559565 Getz Feb 1971 A
3566777 Koziol Mar 1971 A
3693538 Synder Sep 1972 A
3734740 Zenos May 1973 A
3782268 Navarro Jan 1974 A
3797379 Brion Mar 1974 A
3802331 Zickefoose Apr 1974 A
3805762 Nelson Apr 1974 A
3807292 Cinger Apr 1974 A
3812840 Whaler May 1974 A
3838538 Burford Oct 1974 A
3848522 Trelc Nov 1974 A
3867605 Yee Feb 1975 A
3867877 Zajc Feb 1975 A
3901136 Wilson et al. Aug 1975 A
3931758 Blake Jan 1976 A
3935806 Connolly Feb 1976 A
3935807 Main et al. Feb 1976 A
3939761 McGinty Feb 1976 A
3943837 Trkla Mar 1976 A
3959620 Stephen, Jr. May 1976 A
3980010 Collinucci Sep 1976 A
4005646 Krüper Feb 1977 A
4051838 Pinckney Oct 1977 A
4089258 Berger May 1978 A
4103605 Hemborg et al. Aug 1978 A
4103606 Gitcho Aug 1978 A
4106473 Wandel Aug 1978 A
4114523 Eff Sep 1978 A
4119020 Sharp et al. Oct 1978 A
4154154 Vivian May 1979 A
4158992 Malafouris Jun 1979 A
4163894 Scherer Aug 1979 A
4165683 Van Gilst Aug 1979 A
4165684 Wallace Aug 1979 A
4176592 Doyle, Jr. Dec 1979 A
4181074 Hieb Jan 1980 A
4214516 Friedl et al. Jul 1980 A
4244979 Roderick Jan 1981 A
4270444 Geissmann Jun 1981 A
4286133 Einset et al. Aug 1981 A
4300443 Morcos et al. Nov 1981 A
4301718 Lewinger et al. Nov 1981 A
4304177 Loeffler et al. Dec 1981 A
4321857 Best Mar 1982 A
4327274 White et al. Apr 1982 A
4335289 Smith Jun 1982 A
4355569 Sage Oct 1982 A
4355626 Bailey et al. Oct 1982 A
4366750 Brown et al. Jan 1983 A
4372199 Brown et al. Feb 1983 A
4407189 Bentson Oct 1983 A
4409452 Oouchi et al. Oct 1983 A
4410553 McGinty Oct 1983 A
4418261 Jailor et al. Nov 1983 A
4421016 Sich Dec 1983 A
4442763 Beller Apr 1984 A
4450758 Belinkoff et al. May 1984 A
4454805 Matthews Jun 1984 A
4455928 Townsend Jun 1984 A
4470343 Didier Sep 1984 A
4483241 Vaughn Nov 1984 A
4491065 Poulson Jan 1985 A
4505195 Waltman Mar 1985 A
4508024 Perkins Apr 1985 A
4520791 Chamberlain Jun 1985 A
4548130 Diener et al. Oct 1985 A
4555986 Eisenberg Dec 1985 A
4556046 Riffel et al. Dec 1985 A
4562771 Williams Jan 1986 A
4572062 Widdowson Feb 1986 A
4583452 Grosse Apr 1986 A
4585661 Brummett Apr 1986 A
4591683 Eke May 1986 A
4600254 Whalen Jul 1986 A
4625634 Krüper Dec 1986 A
4661669 Matsushima et al. Apr 1987 A
4688541 Stephen et al. Aug 1987 A
4726352 Radke Feb 1988 A
4743737 Tateishi May 1988 A
4817514 Hitch et al. Apr 1989 A
4839186 Boyle Jun 1989 A
4867051 Schalk Sep 1989 A
4870896 Asahina et al. Oct 1989 A
4886044 Best Dec 1989 A
4889972 Chang Dec 1989 A
4924766 Hitch May 1990 A
4968515 Burkett et al. Nov 1990 A
4986174 Gongwer Jan 1991 A
5001971 Beller Mar 1991 A
5038748 Lockwood et al. Aug 1991 A
5039535 Lang et al. Aug 1991 A
5044262 Burkett et al. Sep 1991 A
5058493 Basek et al. Oct 1991 A
5134927 McCarthy, III et al. Aug 1992 A
5136933 Derakhshan Aug 1992 A
5146842 Romano Sep 1992 A
5148737 Poulson Sep 1992 A
5163358 Hanagan et al. Nov 1992 A
5172628 Pillsbury et al. Dec 1992 A
5176124 Wrasse Jan 1993 A
5182981 Wilcox Feb 1993 A
5184540 Riccio Feb 1993 A
5193444 Bar-Sheshet Mar 1993 A
5203252 Hsieh Apr 1993 A
5205207 McGuire Apr 1993 A
5205208 Gongwer Apr 1993 A
5235148 Yamaguchi et al. Aug 1993 A
5235903 Tippmann Aug 1993 A
5275095 Van Haren Jan 1994 A
5297534 Louden Mar 1994 A
D347762 Bannigan Jun 1994 S
5325767 Beller Jul 1994 A
5361685 Riccio Nov 1994 A
5361686 Koopman Nov 1994 A
5367950 Sarich Nov 1994 A
5373778 Moreth Dec 1994 A
5373809 Sphar Dec 1994 A
5379685 Krasznai Jan 1995 A
5390588 Krasznai et al. Feb 1995 A
5404795 Coble Apr 1995 A
5405627 Ito Apr 1995 A
5410948 Eickmeyer May 1995 A
5410950 Rone May 1995 A
5417148 Cavallo May 1995 A
5427015 Zittel Jun 1995 A
5429042 Koopman Jul 1995 A
5431093 Dodgen Jul 1995 A
5441037 Yen Aug 1995 A
5442999 Meister Aug 1995 A
5445064 Lopata Aug 1995 A
5445065 Lopata Aug 1995 A
5447096 Bürge et al. Sep 1995 A
5447620 Pagnac et al. Sep 1995 A
5451744 Koopman et al. Sep 1995 A
5465653 Riccio Nov 1995 A
5469782 Wong Nov 1995 A
5471914 Krasznai et al. Dec 1995 A
5471915 Lopata Dec 1995 A
5473977 Koether et al. Dec 1995 A
5485780 Koether et al. Jan 1996 A
5497697 Promny Mar 1996 A
5515773 Bullard May 1996 A
5515774 Swisher et al. May 1996 A
5518127 Warmack et al. May 1996 A
5533440 Sher Jul 1996 A
5545874 Hansson Aug 1996 A
5560285 Moreth Oct 1996 A
5562022 Schmid et al. Oct 1996 A
5566997 Lin Oct 1996 A
5575196 Masel et al. Nov 1996 A
5579681 Ubert et al. Dec 1996 A
5588353 Glucksman et al. Dec 1996 A
5592869 Zittel Jan 1997 A
5598582 Andrews et al. Feb 1997 A
5598769 Luebke et al. Feb 1997 A
5601070 Hotard et al. Feb 1997 A
5611265 Ronci et al. Mar 1997 A
5619909 Volk Apr 1997 A
5632098 Finch May 1997 A
5632265 Koziol May 1997 A
5634559 Foos et al. Jun 1997 A
5639497 Bedford et al. Jun 1997 A
5665258 Hsu Sep 1997 A
5669290 Natsumi et al. Sep 1997 A
5671659 Swindle Sep 1997 A
5697289 Hackett Dec 1997 A
5715744 Coutant Feb 1998 A
5716657 Liebermann Feb 1998 A
5720217 Pappas Feb 1998 A
D391799 Haring et al. Mar 1998 S
5727719 Veliz et al. Mar 1998 A
5735191 Russell et al. Apr 1998 A
5740722 Emsens Apr 1998 A
5740724 Fabrikant et al. Apr 1998 A
5746116 Smith May 1998 A
5761991 Kambies Jun 1998 A
D395980 Boisselier Jul 1998 S
5778766 Wang Jul 1998 A
5780815 Mestnik et al. Jul 1998 A
5785046 Colla Jul 1998 A
5793610 Schmitt et al. Aug 1998 A
5798505 Lee Aug 1998 A
5799569 Moreth Sep 1998 A
5801357 Danen Sep 1998 A
5801362 Pearlman et al. Sep 1998 A
5802962 Goldyn Sep 1998 A
5809995 Kobayashi et al. Sep 1998 A
5819639 Spell Oct 1998 A
5845563 Haring et al. Dec 1998 A
5881640 Raevsager Mar 1999 A
5887513 Fielding et al. Mar 1999 A
5910332 Fakieh Jun 1999 A
5918534 Medina Jul 1999 A
5957557 Langer et al. Sep 1999 A
5961866 Hansen Oct 1999 A
5970854 Tsai Oct 1999 A
D415923 Hermansson Nov 1999 S
5974956 McConnell Nov 1999 A
5981926 Kim Nov 1999 A
5997928 Kaish et al. Dec 1999 A
6009797 Lin Jan 2000 A
6023049 Huang Feb 2000 A
6038965 Thorndyke Mar 2000 A
6041694 Hsu Mar 2000 A
D422172 Hsu Apr 2000 S
6047633 Khaytman Apr 2000 A
6076453 Hsu Jun 2000 A
6079319 Doria Jun 2000 A
6079322 Su Jun 2000 A
6080967 Sandor et al. Jun 2000 A
6085642 Terry Jul 2000 A
6119586 Gongwer Sep 2000 A
6131505 Lin Oct 2000 A
6138553 Toebben Oct 2000 A
D433867 Hsu Nov 2000 S
6142064 Backus et al. Nov 2000 A
D434939 To Dec 2000 S
6167800 Su Jan 2001 B1
6170390 Backus et al. Jan 2001 B1
6173645 Backus et al. Jan 2001 B1
6178879 Park Jan 2001 B1
6182560 Andress Feb 2001 B1
6240838 Backus et al. Jun 2001 B1
6250211 Gongwer Jun 2001 B1
6250214 Backus et al. Jun 2001 B1
6253665 Backus et al. Jul 2001 B1
6257128 Chen Jul 2001 B1
6279165 Kobayashi Aug 2001 B1
6330855 Backus et al. Dec 2001 B2
6393972 Backus et al. May 2002 B1
6408742 Backus et al. Jun 2002 B1
6422136 Backus et al. Jul 2002 B1
6450087 Backus et al. Sep 2002 B2
6536334 Backus et al. Mar 2003 B2
6568315 Backus et al. May 2003 B2
6568316 Backus et al. May 2003 B1
6658991 Backus et al. Dec 2003 B2
6742445 Backus et al. Jun 2004 B2
6782805 Backus et al. Aug 2004 B2
6782806 Backus et al. Aug 2004 B2
6837150 Backus et al. Jan 2005 B2
6874408 Backus et al. Apr 2005 B2
6965095 Popeil et al. Nov 2005 B1
6988445 Backus et al. Jan 2006 B1
7021203 Backus et al. Apr 2006 B2
7021204 Backus et al. Apr 2006 B2
7138609 Popeil et al. Nov 2006 B2
7225729 Backus et al. Jun 2007 B2
7225730 Backus et al. Jun 2007 B2
7325484 Backus et al. Feb 2008 B1
20050178275 Backus et al. Aug 2005 A1
20060144248 Backus et al. Jul 2006 A1
20070145061 Backus et al. Jun 2007 A1
Foreign Referenced Citations (69)
Number Date Country
223335 Sep 1962 AT
238395 Feb 1965 AT
424144 Nov 1966 CH
603130 Aug 1978 CH
662496 Oct 1987 CH
657089 Feb 1938 DE
1162985 Feb 1964 DE
43251 Nov 1965 DE
1454014 Nov 1968 DE
1998600 Dec 1968 DE
1429829 Apr 1969 DE
1454157 Aug 1969 DE
1679001 Mar 1971 DE
7047203 Apr 1971 DE
1779063 Oct 1971 DE
2205703 Aug 1972 DE
7213693 Aug 1972 DE
2307575 Aug 1973 DE
2358119 May 1974 DE
7407464 Jul 1974 DE
2308779 Sep 1974 DE
2310390 Sep 1974 DE
2425346 Dec 1975 DE
2430233 Jan 1976 DE
2601877 Jul 1977 DE
2646811 Apr 1978 DE
3000653 Jul 1981 DE
3214818 Nov 1983 DE
3235985 Mar 1984 DE
3401002 Jul 1985 DE
3606800 Sep 1987 DE
4112325 Jan 1992 DE
4226098 Apr 1993 DE
4413050 Jun 1995 DE
29602405 May 1996 DE
29909108 Aug 1999 DE
29916242 Dec 1999 DE
29916161 Jan 2000 DE
281866 Sep 1988 EP
332505 Sep 1989 EP
396470 Nov 1990 EP
1222889 Jul 2002 EP
1535556 Jun 2005 EP
1700550 Sep 2006 EP
2029576 Aug 1992 ES
853400 Mar 1940 FR
1116586 May 1956 FR
1218203 May 1960 FR
1265159 May 1961 FR
1300126 Jun 1962 FR
2078609 Nov 1971 FR
2276799 Jan 1976 FR
2477396 Sep 1981 FR
2498915 Aug 1982 FR
2603178 Mar 1988 FR
2625668 Jul 1989 FR
478044 Jan 1938 GB
850083 Sep 1960 GB
880899 Oct 1961 GB
996233 Jun 1965 GB
1257945 Dec 1971 GB
555893 Jan 1957 IT
60-49785 Mar 1985 JP
61-22133 Jan 1986 JP
206810 Dec 2001 KR
323756 May 1970 SE
500872 Sep 1994 SE
8604978 Aug 1986 WO
0028869 May 2000 WO
Related Publications (1)
Number Date Country
20080092751 A1 Apr 2008 US
Continuations (3)
Number Date Country
Parent 10039395 Nov 2001 US
Child 11735905 US
Parent 09409172 Sep 1999 US
Child 10039395 US
Parent 08889021 Jul 1997 US
Child 09409172 US