NZ704248B - Cooking apparatus - Google Patents

Abstract

The present invention relates to a portable cooking apparatus, for use in picnics, camping, and the like activities. The cooking apparatus 20 comprises a body 22 having a base wall 24, side walls 26, a rear wall 28, a top wall 30 and a shelf 34. The shelf 34, top panel 35, and sections of the side walls 26 and rear wall 28 therebetween define a cooking space 40 having an open front 42. The cooking apparatus 20 further comprises a heating means 46 which extends along an internal surface of the rear wall 28 facing the cooking space 40. A moisture infusion assembly 50 is arranged above the shelf 34 extending across and covering a lower portion of the cooking space for supplying moisture to the cooking space in use. The moisture infusion assembly provides a number of advantages, such as having juices/grease falling from the meat being cooked to fall into the moisture infusion assembly. This also ensures steam/moisture from the moisture infusion assembly will engage the food being cooked. walls 26 and rear wall 28 therebetween define a cooking space 40 having an open front 42. The cooking apparatus 20 further comprises a heating means 46 which extends along an internal surface of the rear wall 28 facing the cooking space 40. A moisture infusion assembly 50 is arranged above the shelf 34 extending across and covering a lower portion of the cooking space for supplying moisture to the cooking space in use. The moisture infusion assembly provides a number of advantages, such as having juices/grease falling from the meat being cooked to fall into the moisture infusion assembly. This also ensures steam/moisture from the moisture infusion assembly will engage the food being cooked.

Description

COOKING APPARATUS Field of the Invention The present invention relates to a cooking apparatus, in particular a barbeque apparatus. The apparatus is however not limited to this use, Background of the Invention The present invention seeks to overcome or substantially ameliorate at least some of the deficiencies of the prior art, or to at least provide an alternative.

It is to be understood that, if any prior art information is referred to herein, such reference does not constitute an admission that the information forms part of the common general knowledge in the art, in Australia or any other country.

Summary of the Invention According to a first aspect, the present invention provides a portable cooking apparatus comprising: a cooking space defined by a lower shelf, a top panel and side walls, the cooking space having an open front; a heating means for providing heat in a generally lateral direction to the cooking space; a food holding means for holding food in the cooking space, the food holding means comprising a plurality of vertically spaced slots formed in each of the side walls dimensioned to receive respective end portions of a skewer; a moisture infusion assembly extending across and covering a lower portion of the cooking space for supplying moisture to the cooking space in use; and wherein the moisture infusion assembly comprises a tray having a variable opening gate configurable between fully closed and fully opened positions, and partially opened positions therebetween.

In one embodiment, the heating means extends in a generally upright configuration.

In one embodiment, the cooking apparatus comprises a rear wall, wherein the heating means is disposed along the rear wall.

In one embodiment, the cooking apparatus comprises a top wall having a second heating means thereon.

In one embodiment, the moisture infusion assembly is disposed along and covers the lower shelf.

In one embodiment, the heating means comprises at least one of a gas ceramic burner, a gas burner and an electric heating element.

In one embodiment, the cooking apparatus comprises a fuel chamber for receiving portable fuel for the heating means.

In one embodiment, the moisture infusion assembly extends between the side walls.

In one embodiment, the variable opening gate comprises upper and lower panels, each panel comprising elongated openings separated by bars therebetween.

In one embodiment, the upper panel is fixed in position and the lower panel can be slid in a lateral direction relative to the upper panel.

In one embodiment, the food holding means comprises a vertical skewer to be received in mounting portions of the shelf and the top panel to extend therebetween.

In one embodiment, the food holding means comprises a grill holder having a mounting post.

In one embodiment, the cooking apparatus comprises a turning means for turning the food holding means.

In one embodiment, the heating means comprises a briquette holder.

In one embodiment, the briquette holder comprises a briquette tray and a mesh extending across and covering an upper opening of the briquette tray.

In one embodiment, the briquette tray comprises spaced shelves for holding the briquette.

In one embodiment, the shelves comprise a panel angled downwardly towards the mesh.

In one embodiment, the shelves comprise a distal portion disposed adjacent the mesh.

In one embodiment, the briquette holder is configurable between a horizontal loading position and an upright in use position.

In one embodiment, the cooking apparatus comprises a mounting slot formation formed therein for allowing the briquette holder to be configured between the horizontal loading position and an upright in use position.

Other aspects of the invention are also disclosed.

Brief Description of the Drawings Notwithstanding any other forms which may fall within the scope of the present invention, preferred embodiments of the present invention will now be described, by way of examples only, with reference to the accompanying drawings in which: Fig. 1 is a front perspective view of a cooking apparatus in accordance with a first preferred embodiment of the present invention; Fig. 2 is a front view of the cooking apparatus of Figure 1; Fig. 3 is a top view of the cooking apparatus of Figure 1; Fig. 4 is a side view of the cooking apparatus of Figure 1; Fig. 5 is a rear view of the cooking apparatus of Figure 1; Fig. 6 is a front perspective view of the cooking apparatus of Figure 1 in use; Fig. 7 is a front perspective view of a cooking apparatus in accordance with a second preferred embodiment of the present invention; Fig. 8 is a rear perspective partially exploded view of the cooking apparatus of Figure Fig. 9 is a front perspective view of a cooking apparatus in accordance with a third preferred embodiment of the present invention; Fig. 10 is a front perspective view of a cooking apparatus in accordance with a fourth preferred embodiment of the present invention; Fig. 11 is a front perspective view of the cooking apparatus of Figure 10 in a loading position; Fig. 12 is a front perspective exploded view of the cooking apparatus of Figure 11; and Fig. 13 is a front perspective view of a cooking apparatus in accordance with a fifth preferred embodiment of the present invention.

Description of Embodiments It should be noted in the following description that like or the same reference numerals in different embodiments denote the same or similar features.

Figures 1 to 5 show a cooking apparatus 20 in accordance with a first preferred embodiment of the present invention. The cooking apparatus 20 comprises a generally rectangular prism shaped body 22 having a base wall 24, side walls 26, a rear wall 28 and a top wall 30. The body 22 further includes a lower front wall 32 which extends upwardly from the base wall 24 for only about a fifth of the height of the rear wall 28, and an upper front wall 33 which extends downwardly from the top wall 30 only by a short distance.

A shelf 34 extends from an upper edge of the lower front wall 32 towards the rear wall 28, and a top panel 35 extends from a lower edge of the upper front wall 33 towards the rear wall 28. The shelf 34, top panel 35, and sections of the side walls 26 and rear wall 28 therebetween define a cooking space 40 having an open front 42.

The cooking apparatus 20 further comprises a heating means 46 which extends along an internal surface of the rear wall 28 facing the cooking space 40. In the embodiment, the heating means 46 comprises gas ceramic burners 46 for directing and distributing heat towards the cooking space 40 in a substantially uniform manner.

A moisture infusion assembly 50 is arranged above the shelf 34 and thus at a lower portion of the cooking space 40. Components of the moisture infusion assembly 50 will be further described below.

The cooking apparatus 20 in the embodiment is portable and fuelled by a portable fuel canister 100 as shown in Figure 8 which is inserted via a loading door 29 of the rear wall 28 into the cooking apparatus 20. The loading door 29 corresponds in size and position to the lower front wall 32.

The fuel in the gas canister 100 can be butane, propane, a combination thereof or any other suitable fuel. The lower front wall 32 comprises a gas cartridge valve engagement lever 62, an ignition button 64 and a gas control knob 66. The lever 62 is used in use to lock the valve of the canister 100 in place. When gas is allowed to flow via the knob 66 to the burners 46, the ignition button 64 is actuated to ignite the fuel gas in the burners 46.

A gas burner (stove) 70 is also disposed in the top wall 30, with an associated ignition button 74 and a gas control knob 76 at the upper front wall 33. The gas burner 70 also receives fuel from the gas canister 100 in use.

Vertically spaced slots 78 are formed in the side walls 26, the slots 78 extending from a front edge thereof and directed generally towards the rear wall 28 at a slight downward angle. The slots 78 terminate about halfway along the side walls 26. The slots 78 are arranged in aligned pairs between the side walls 26. As shown in Figure 6, the slots 78 in each pair are dimensioned to receive respective end portions of a skewer 110.

The moisture infusion assembly 50 (see also Figure 8) comprises a tray 52 having a variable opening gate 54 extending across its top portion. The variable opening gate 54 comprises openings 57 which can be configured between fully closed and fully opened positions, and partially opened positions therebetween.

The variable opening gate 54 comprises two similarly shaped upper and lower panels 56 and 56a. The upper panel 56 comprises elongated parallel upper openings 57 separated by upper bars 61 therebetween. Similarly, the lower panel 58 comprises elongated parallel lower openings 57b separated by lower bars 61b therebetween. The upper panel 56 is fixed in position whilst the lower panel 58 can be slid in a sideways direction relative to the upper panel 56 via a tab 65.

When the upper and lower openings 57 and 57b are aligned, the variable opening gate 54 is at its fully open position. When the lower panel 58 is moved such that the lower bars 61b are aligned with the upper openings 57, the variable opening gate 54 is at its fully closed position as the lower bars 61b block the upper openings 57. The lower panel 58 can then be moved sideways which varies how much of the lower bars 61b block the upper openings 57.

This varies the effective size of the openings 57 which allows moisture within the tray 52 to escape in use. An indicator pointer showing “0 – Max” is provided to indicate the fully closed and fully opened positions.

In use, the fuel canister 100 is loaded into the cooking apparatus 20 via the loading door 29 and the valve engagement lever 62. Fuel is then allowed to flow via the knob 66 to the burners 46, and the ignition button 64 is actuated to ignite the fuel in the burners 46 thus providing heat to the cooking space 40.

Referring to Figure 6, food 130 is disposed in the skewers 110 and respective end portions of the skewers 110 are placed in the slots 78. Skewers 110 with food 130 are thus parallel spaced within the cooking space 40 and the food can be cooked using the heat in the cooking space 40. The user can turn the skewers 110 as need to provide even cooking. In an alternative embodiment, turning means such as a battery or mains powered motor can be provided for turning the skewers automatically.

One the of the advantages of the cooking apparatus 20 is that the heating means 46 is oriented in a vertical orientation with the food to be cooked arranged in a generally vertical orientation adjacent the heating means 46. This means there is less grease falling onto the heating means 46 and thus less cleaning required. The vertical orientation of the cooking apparatus 20 also provides a smaller footprint compared to a typical horizontally orientated barbeque cooking apparatus as well as the ability to carry the portable cooking apparatus 20 easier.

To ensure that the food 130 being cooked does not dry, desired liquids are placed in the tray 52 which will be heated and evaporate in use, thus moisturising the food 130. The liquid can be any one or a combination of water, cooking oil, spices, flavourings and sauces.

The user can then select the rate at which the liquids reach the food 130 via the variable opening gate 54.

Referring to Figure 6, bulky food 132, such as whole chickens, can also be cooked within the cooking space 40 via a vertical skewer 134. The vertical skewer 134 is received in mounting portions of the shelf 34 and the top panel 35 to extend therebetween.

Generally planar shaped food 136, such as fish and steaks, can be cooked in a grill holder 138 which comprises two grill plates which can receive the food 136 therebetween, and a post 140 having a similar shape as the vertical skewer 134. The post 140 can then be received in a similar manner as the vertical skewer 134 in the mounting portions of the shelf 34 and the top panel 35.

Both the vertical skewer 134 and the grill holder 138 can then be turned manually by the user or the cooking apparatus 20 can include turning means (such as a battery or mains powered motor) for turning the vertical skewer 134 and the grill holder 138.

The user can further cook additional food via the gas burner 70 as needed.

Figures 7 and 8 show a cooking apparatus 20b in accordance with a second preferred embodiment. The cooking apparatus 20b is similar to the cooking apparatus 20 above except that the cooking apparatus 20b does not have the gas burner 70 in the top wall 30, its associated ignition button 74 and gas control knob 76, and the upper front wall 33. The cooking space 40 in the cooking apparatus 20b can thus be larger.

Figure 9 shows a cooking apparatus 20c in accordance with a third preferred embodiment. The cooking apparatus 20c is similar to the cooking apparatus 20b above except that the cooking apparatus 20c additionally comprises a heating element 160 as part of the heating means 46. The heating element 160 is electric and can be an alternative to the gas ceramic burners 46 or additional thereto.

Figures 10 to 12 shows a cooking apparatus 20d in accordance with a fourth preferred embodiment. The cooking apparatus 20d is similar to the cooking apparatus 20b above except that the cooking apparatus 20d has a different heating means 46.

The body 22 of the cooking apparatus 20d comprises a base wall 24, side walls 26, and a top wall 30. The body 22 does not include a rear wall 28.

The heating means 46 in this embodiment comprises a rectangular briquette holder 46 which is dimensioned to replace the rear wall 28. The briquette holder 46 includes a briquette tray 170 having a base panel 171, side walls 172, an upper end wall 173 and a lower end wall 174. A metal mesh 176 is hingedly attached to the upper end wall 173 and is movable between an open position (Figure 12) and a closed position (Figures 10 and 11) at which it extends across and covers an upper opening of the briquette tray 170.

The briquette tray 170 further comprises spaced shelves 178 which extend between the side walls 172. In the embodiment, the shelves 178 comprise a bent metal section which provides two angled panels with the base panel 171. The shelves thus generally form two sides of a triangle having a peak distal to the base panel 171. The shelves 178 are spaced about 50 mm from each other and form receiving spaces with the base panel 171. . The briquette are placed in the receiving spaces. When the metal mesh 176 is closed, the mesh 176 is adjacent the peak of the shelves 178. The shelves 178 with the mesh 176 thus retain the briquette thereon when the briquette holder 46 is oriented in a generally upright position, where the base panel 171 is generally upright (Figure 10). The shelves 178 comprise an upper panel downwardly angled towards the mesh, which allows the briquette to be pushed towards the mesh. The briquette thus generally stack against the mesh to provide generally evenly distributed heating. The briquette tray 170 thus provides no cavities for easy cleaning as needed.

The metal mesh 176 can be locked in the closed position via a latch 182 mounted adjacent the lower end wall 174. In the upright orientation, the metal mesh 176 retains the briquette in the shelves 178. The briquette tray 170 further comprises an ash collection trough 184 formed adjacent the lower end wall 174.

For mounting and handling, the briquette tray 170 comprises side posts 188 with end ball handles 190 respectively extending from the side walls 172, and a top post 192 with end ball handle 194 extending from the upper end wall 173. The use of these posts 188, 192 is described below.

The side walls 26 comprise a receiving and mounting slot formation 200 formed therein. The slot formation 200 comprises a first slot section 202 extending from a rear edge 201 of the side walls 26 and generally horizontally towards a front edge 203 thereof. The first slot section 202 extends to half of the width of the side walls 172 and includes a downwardly extending end seat 204.

The slot formation 200 further comprises a second slot section 206 extending vertically from the first section 202, close to the rear edge 201. A third slot section 208 extends horizontally forwardly from an upper end of the second slot section 206, the third slot section 208 having a downwardly extending end seat 210.

The top wall 30 comprises a locking slot 212 extending from the rear edge 201 and a movable locking bar 214. The top wall 30 also includes a carry handle 220.

As shown in Figure 12, the briquette holder 46 is fully removable from the body 22 of the cooking apparatus 20d. The metal mesh 176 is moved to the open position for placing briquette within the tray 170. The briquette can then be lighted.

The metal mesh 176 is moved to the closed position, and the posts 188 are inserted into the first slot section 202. As shown in Figure 11, the posts 188 can also be placed in the seats 204 for loading briquette in the tray 170.

As shown in Figure 10, the posts 188 are then moved along the second slot section 206, and then the third slot section 208, to be seated in the end seats 210. The top post 192 is inserted into the locking slot 212 and the locking bar 214 is used to lock the top post 192.

This orients the briquette holder 46 into the cooking position, at which heat is directed towards the cooking space 40. The cooking apparatus 20d can then be used in a similar manner as above.

The present embodiments thus provide gas and/or electric portable and domestic upright vertical barbeque apparatus. Any juices from the food being cooked falls into the tray of the moisture infusion assembly. The cooking apparatus is configured for minimal scrubbing and cleaning free (providing a self-clean operation), compact and portable , can be used with electric, refillable gas tanks or disposable cartridge, provides uniform distribution of heat, and can cook food in skewers, a rotisseries function for whole chickens or shoulder roasting function.

The controlled moisture infusion system employed not only keeps the food tender and juicy with a coveted golden brown finish, it also prevents the formation of acrylamide, a harmful compound that can cause cancer. This compound is found in the blackened crust of grilled or roasted meat.

The configured tower shape allows the employment of a ceramic gas burner which in turn provides up to 30% energy cost saving and up to 80% reduction in CO and NOx gases.

The inherent flameless and wind resistant characteristics will also provide a safe home/outdoor operation topping up the main feature of uniformly distributed heat for even cooking results.

Unlike conventional cooking apparatus, the configured shape prevents the grease from dripping on the burning parts of the apparatus which normally ends up toughened and hard to remove, grease gets trapped instead in the moisture tray and hence substantially low cleaning and maintenance required. The burner does not get corroded and hence provides a long lifetime maintaining maximum working efficiency, Combining and applying simultaneously moist-heat cooking with dry-heat cooking in one cooking apparatus means reaping all advantages of both cooking methods and overcoming the disadvantage of each one separately. In other words the cooking apparatus of the present embodiments achieve the optimum cooking results between one extreme of moist-heat cooking and other extreme of dry-heat cooking attaining the taste, original food flavour, juiciness, tenderness and importantly the healthy cooking factor such as nutrition values retaining and acrylamide-free cooking. Conventional cooking apparatus compromises some of the above. The cooking apparatus of the present embodiments is an upright tower configuration moisture infusion barbeque (powered by gas, electric or charcoal) which can be for home or outdoor use; in other words for domestic or portable mobile.

Whilst preferred embodiments of the present invention have been described, it will be apparent to skilled persons that modifications can be made to the embodiments described.

For example, the gas cartridge can be a bigger cylinder or the cooking apparatus can work on natural gas, mains AC electric power or dual powered of gas and electric; For the electric version, the top burner can be an electric hotplate. Other possible features include rotating skewers and accessories, and fumes/smell exhaust fan can be added. The moisture infusion assembly can alternatively or additionally comprise a side pump with a mist valve that can infuse moisture to the cooking space.

The apparatus can also be used as a personal heater. The apparatus can also be provided with additional features such as a safety trip over feature, an auto gas cut off system, and an oxygen depletion sensor. The burner is preferably an infrared ceramic burner.

Figure 13 shows a cooking apparatus 20e in accordance with a fifth preferred embodiment of the present invention. The cooking apparatus 20e also comprises a generally rectangular prism shaped body 22 having a base wall 24, side walls 26, a shorter rear wall and a top wall 30.

The heating means 46 in this embodiment extends along an internal (lower) surface of the top wall 30, downwardly directed to face the cooking space 40. The moisture infusion assembly 50 is arranged at a lower portion of the body 22 and defines the cooking space 40 with the side walls 26 and top wall 30. The rear wall only extends to the level of the moisture infusion assembly 50, and the cooking space 40 thus comprises an open rear section. The distance between the heating means 46 and the moisture infusion assembly 50 is about 25 cm in the embodiment. The heating means 46 is preferably a ceramic burner, but can alternatively be an electric element, or a combination of such heating means.

The portable fuel canister is housed at the lower rear section of the body 22. A gas burner (stove) 70 is also disposed in the top wall 30. Associated ignition buttons 74 and gas control knobs 76 for the heating means 46 and the gas burner 70 are disposed at the top wall . A fold back carry handle 250 is also provided at the top wall 30.

The cooking apparatus 20e comprises front and rear horizontal cooking racks 240 arranged across the open front and rear sections of the cooking space 40. The front and rear cooking racks 240 comprise aligned horizontally spaced slots 242 for receiving and supporting respective ends of skewers.

The cooking racks 240 can be attached to each other, or be separated and independently attachable to the body 22. The vertical position of the cooking racks 240 is adjustable between at least three possible positions, being a vertical midpoint of the cooking space 40, and 2.5 cm above and below the midpoint. The side walls 26 are provided with suitable means to allow the adjustment, such as vertically spaced slots for supporting the cooking racks 240.

In use, food is disposed in skewers and respective end portions of the skewers 110 are placed in the slots 242. Skewers with food are thus parallel spaced within the cooking space 40. An alternative to using the skewers is a grill holder 138, a spit rotisserie 144 or a mesh rotisserie 146, which can be used with or without the racks 240.

In other possible embodiments, the downwardly directed (top wall) and the laterally directed (rear wall) heating means can be combined in a single cooking apparatus.

Additionally, heating means can also be provided for at least parts of the side walls.

A heating means, such as a heating element, can also be provided in the moisture infusion tray for heating the liquids therein.

Claims (19)

Claims 1.

1. A portable cooking apparatus comprising: a cooking space defined by a lower shelf, a top panel and side walls, the cooking space having an open front; a heating means for providing heat in a generally lateral direction to the cooking space; a food holding means for holding food in the cooking space, the food holding means comprising a plurality of vertically spaced slots formed in each of the side walls dimensioned to receive respective end portions of a skewer; a moisture infusion assembly extending across and covering a lower portion of the cooking space for supplying moisture to the cooking space in use; and wherein the moisture infusion assembly comprises a tray having a variable opening gate configurable between fully closed and fully opened positions, and partially opened positions therebetween.

2. The cooking apparatus of claim 1 wherein the heating means extends in a generally upright configuration.

3. The cooking apparatus of claim 2 wherein the cooking apparatus comprises a rear wall, wherein the heating means is disposed along the rear wall.

4. The cooking apparatus of claim 1 wherein the cooking apparatus comprises a top wall having a second heating means thereon.

5. The cooking apparatus of claim 1 wherein the moisture infusion assembly is disposed along and covers the lower shelf.

6. The cooking apparatus of claim 1 wherein the heating means comprises at least one of a gas ceramic burner, a gas burner and an electric heating element.

7. The cooking apparatus of claim 1 wherein the cooking apparatus comprises a fuel chamber for receiving portable fuel for the heating means.

8. The cooking apparatus of claim 1 wherein the variable opening gate comprises upper and lower panels, each panel comprising elongated openings separated by bars therebetween.

9. The cooking apparatus of claim 8 wherein the upper panel is fixed in position and the lower panel can be slid in a lateral direction relative to the upper panel.

10. The cooking apparatus of claim 1 wherein the food holding means further comprises a vertical skewer to be received in mounting portions of the shelf and the top panel to extend therebetween.

11. The cooking apparatus of claim 1 wherein the food holding means further comprises a grill holder having a mounting post.

12. The cooking apparatus of claim 1 wherein the cooking apparatus comprises a turning means for turning the food holding means.

13. The cooking apparatus of claim 1 wherein the heating means comprises a briquette holder.

14. The cooking apparatus of claim 13 wherein the briquette holder comprises a briquette tray and a mesh extending across and covering an upper opening of the briquette tray.

15. The cooking apparatus of claim 14 wherein the briquette tray comprises spaced shelves for holding the briquette.

16. The cooking apparatus of claim 15 wherein the shelves comprise a panel angled downwardly towards the mesh.

17. The cooking apparatus of claim 15 wherein the shelves comprise a distal portion disposed adjacent the mesh.

18. The cooking apparatus of claim 13 wherein the briquette holder is configurable between a horizontal loading position and an upright in use position.

19. The cooking apparatus of claim 18 wherein the cooking apparatus comprises a mounting slot formation formed therein for allowing the briquette holder to be configured between the horizontal loading position and an upright in use position.