"MULTIFUNCTION PORTABLE STOVE WITH INFRARED CERAMICS SLAB"

The present innovation refers to a multifunction portable stove working with pierceable gas cartridge and more precisely to a one-fire-camping stove with infrared ceramic slab for outdoor activity and not like camping, picnic, etc. Portable camping stoves of small dimensions to be employed in open places are already famous in the state of the technique, however they can not be used as a small portable heater. They are provided with a cartridge holder base, generally in plastic or metal for pierceable gas cartridges, and a direct flame's burner with a pot's cross support placed on the support plate. The stove can be equipped with a grip as integrating part with the cartridge holder base. All the stoves with direct flame take a lot of time to reach an ideal temperature for the baking because of a not homogenous distribution of the flame and only on a point of the pot. This involves therefore a slow and not homogenous baking of the food with a high fuel consumption, (more than a gas cartridge of 190 grams), spending more time for the single baking function with a limited chance of use. In fact they cannot be used in alternative as small heaters, but only for food baking. That gives origin to the requirement of arranging a portable

stove of easy use and maintenance for a faster cooking with greater power, and alternatively to warm premises or open places with the aid of a diffuser in aluminium, always of small dimensions and using the same gas source and container. In this way the autonomy of the item is optimized to the maximum and its functionalities of use are increased avoiding pointless transports of further gas cartridges and relating fuel waste.

The aim of this innovation is to solve the abovementioned issue supplying a multifunction portable stove (cooker/heater) with one source of direct radiating heat, presenting in the upper part of the diffuser a round infrared ceramic slab where is placed an even round pot's cross support with 3 rays inclined to 120°, as pan's support. Among the room of air/gas mixer and the small cross support there is an infrared ceramic slab radiating itself the heat homogenously. Therefore, there is the advantage of having the maximum of flame's caloric power to be best used for several uses, like cooking, grilling and heating surroundings. In the event the stove is used as heater on the cross support shall be applied a diffuser in aluminium with a round safety grill. The upper part of the stove, composed by ceramic slab and pot's cross support, is easily removable for a proper maintenance, giving the chance to have a portable stove of easy maintenance and, in the event of cleaning, also of easy assembly.

Currently in trade do not exist portable multifunction stoves of small dimensions with such solution and peculiarity that is instead very useful in any situations. According to this innovation a portable stove is supplied consisting in a cartridge holder base, generally in plastic or metal, for pierceable cartridges, with or without handgrip, and one radiating heat source formed by a gas/air mixer room covered by a circular radiating infrared ceramic slab. Its function is to diffuse the heat and is overlapped by a small pot's cross support made of iron with chromed treatment. For the version of the stove/heater a diffuser (or conveyer) in aluminium is supplied and is directly applied on the perimeter of the cross support. Its aim is to convey at the best the heat produced by the same stove. A circular grill in chromed plated steel is applied on the diffuser as safety cover. Manufacturing variations can be applied to the current portable stove like a different surface treatment of the cross support/stove and grill/heater including even its enamelling treatment and any kind of geometric shape of pot's cross support, heater diffuser's grill, infrared ceramic slab or cartridge holder base even in case they are produced in one piece or two or more parts. The same variations can be applied to these parts if their shape is different from the circular one like for example a squared series, triangular series, rectangular or oval, stripes or waves. The present innovation will be better

explained by a description of a preferred realization, as example and not restrictive, referring to the enclosed 18 designs:

1 FIGURE 1 - FRONTAL STOVE VIEW - FRONT. It is a frontal view of a stove in which the substantially particular conformation of "mushroom"-shaped burner/cross support is evidenced. Its concentric shape, has in the inferior side two external recesses forming, with the cross support, 3 steps with bevelled edges. In its inferior and central part of the burner/cross support group there is a pipe element having hexagonal base, with 4 coaxial holes, that is connected with the cartridge holder with a substantially conical element whose diameter is inferior than the base of the cartridge holder. The shell of the cartridge holder is constituted by a base associated to an approximately cylindrical portion having the upper side slightly dome- shaped.

2 FIGURE 2 - FRONTAL STOVE VIEW - BACK SIDE. Back side-view of the stove of previous figure where is emphasized the presence of a cone-shaped grip, that is part of the abovementioned conical element, and is slightly convergent on the lower and upper limbs. Moreover there is also the presence of a gas regulation knob with a round shape.

FIGURE 3 - FRONTAL STOVE SIDE-VIEW - LEFT SIDE. Left side-view of previous figure in which is evident the "L"-shaped grip, being part of the conical element at the base of the burner/cross support. It is noted on the upper side of the grip, laterally of conical element, the gas regulation knob slightly jutting out and partially embedded in a small concavity situated in the upper surface of the grip that is slightly tilted towards the bottom. The pot's cross support does not have overhanging parts in the upper part, being the 3 rays at 120° in line with its outer circular perimeter. FIGURE 4 - FRONTAL SIDE-VIEW OF THE STOVE- RIGHT SIDE. Right side-view of the previous figure where the seats of joint screws of the handgrip are evidenced. FIGURE 5 - FRONTAL TOP-VIEW OF THE STOVE - THREE QUARTERS. Three quarters' top-view of the stove where the presence of the radiating infrared ceramic slab is evidenced. Its function is to be a burner covering and closing the air-gas-mixer room. The ceramic slab has the typical surface with honeycomb conformation and over it is placed a pot's cross support, screwed to the perimeter edge of the gas mixer room. The perimeter edge of the cross support forms a mainly raised curb compared to the basic surface of the same cross support. From that perimeter

curb differ three raised rays inclined to 120°, being integrating part of the cross support rest. FIGURE 6 -TOP-VIEW OF THE STOVE POSTERIOR SIDE - THREE QUARTERS, three quarters' top-view of the posterior side of previous figure where is evidenced the presence of several holes situated along the inner perimeter of cross support and spaced out in their position by the 3 rays at 120°. FIGURE 7 - RIGHTEN SIDE-VIEW OF THE STOVE - THREE QUARTERS. The figure shows the stove of the previous figure in a three quarters' right-side-view where is evidenced the depth of the concave seat of regulation knob situated on the handgrip. FIGURE 8 - LEFT SIDE-VIEW OF THE STOVE - THREE QUARTERS. The figure shows the stove of the previous figure in a three quarters' left-side-view. FIGURE 9 - TOP-VIEW OF THE STOVE. Stove's top- view of the previous figure evidencing the circular shape of both infrared ceramic slab and cross support. FIGURE 10 - BOTTOM-VIEW STOVE. The figure shows the stove of the previous figure in a bottom-view where the presence of a small round window for the gas cartridge inspection is evidenced. The lateral projection of the handgrip compared to the gas cartridge holder is noted.

FIGURE 11 - TREE QUARTERS' BOTTOM-VIEW OF THE STOVE. Three quarters' bottom-view of the previous figure where the external edge joint of the cross support on the perimeter of the gas mixer room is evidenced. FIGURE 12 - THREE QUARTERS' LEFT SIDE-VIEW OF THE STOVE, HEATER VERSION. The figure shows the stove of the previous figure as heater version. Is emphasized the presence of a diffuser applied on the stove, having a conical shape with external tilted edges and covered with a safety grill overhanging the edge of the same diffuser. FIGURE 13 - TOP-VIEW OF THE STOVE, HEATER VERSION. Top-view of the stove as heater version referred to the previous figure where the reddish colour of the infrared ceramic slab in burning function and the conical shape of the diffuser for the heater version is emphasized. Furthermore is noted that the safety grill is applied externally to the external edge of the diffuser. FIGURE 14 - TOP-VIEW OF THE STOVE. Top-view of the stove referred to figure 9 with a burner of infrared radiating ceramic slab in burning function. FIGURE 15 - TOP-VIEW OF THE DIFFUSER FOR STOVE, HEATER VERSION. Top-view of the single diffuser in detail referred to figure 13 where the

conformation of the safety grill of diffuser is evidenced. It is made in chromed plated steel and it is formed with 3 concentric circles welded on three convergent but not joined rays inclined to 120° FIGURE 16 - THREE QUARTERS' TOP-VIEW OF STOVE DIFFUSER, HEATER VERSION. Three quarters' top-view of diffuser in detail of the previous figure where the presence of hocked ends for the anchorage of the safety grill to the diffuser is emphasized. FIGURE 17-18 - THREE QUARTERS' TOP-VIEW OF THE RIGHT SIDE STOVE. Three quarters' top-view of the right side of the figure 8 representing the stove with infrared ceramic slab in burning function. FIGURE 19 - THREE QUARTERS' TOP-VIEW OF THE RIGHT SIDE STOVE WITH ACCESSORY. Three quarters' top-view of the right side of the stove of the previous figure where is evidenced the accessory of use suitable to grill. FIGURE 20 - THREE QUARTERS' BOTTOM-VIEW OF THE RIGHT SIDE STOVE WITH ACCESSORY. Three quarters' bottom-view of the right side of the stove of the previous figure whit the accessory of use. FIGURE 21 - THREE QUARTERS' TOP-VIEW OF THE RIGHT SIDE. STOVE. Three quarters' top-view of the

right side of the figure 17 showing the stove with infrared ceramic slab in burning function.

21 FIGURE 22 - THREE QUARTERS ¹ TOP-VIEW OF THE RIGHT SIDE STOVE WITH ACCESSORY. Three quarters' top-view of the right side of the stove of the previous figure where is evidenced the accessory of use, a grilling pot.

22 FIGURE 23 - STOVE TOP-VIEW WITH ACCESSORY OF USE WITH FOOD IN COOKING. Three quarters' top-view of the right side stove referred to the previous figure where is noted the food placed on the accessory of use at the first stage of cooking.

23 FIGURE 24 - THREE QUARTERS' TOP-VIEW OF THE RIGHT SIDE STOVE PROVIDED OF ACCESSORY WITH FOOD IN COOKING. Three quarters' top-view of the right side stove referred to the previous figure where the food placed on the accessory of use at the final stage of cooking is evidenced.

The present innovation is not limited to the described example of realization, on the contrary includes any varying of execution is it of shape, material, technique of manufacture, colour and chromatic combinations.