CN101072530A - A food serving bar - Google Patents
A food serving bar Download PDFInfo
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- CN101072530A CN101072530A CN 200580042057 CN200580042057A CN101072530A CN 101072530 A CN101072530 A CN 101072530A CN 200580042057 CN200580042057 CN 200580042057 CN 200580042057 A CN200580042057 A CN 200580042057A CN 101072530 A CN101072530 A CN 101072530A
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Abstract
A temperature controlled food serving having at least one channel (9) of thermally conductive material for receiving at least one food-holding pan (5). The at least one channel (9) defines an elongate pan receiving cavity for placement of the at least one food-holding pan (5) at any desired location along the cavity. The at least one channel (9) comprises at least one layer of a group of layers including a heat conductive layer (25), an outer heat sink layer (29), and an inner layer (31) for protecting the heat conductive layer (25). A temperature control system comprises at least one heating element (45) for heating the at least one channel (9) to maintain food products held in the food-holding pans (5) at a food holding temperature. The at least one channel may have at least two different temperature zones extending lengthwise of the channel wherein food products in different temperature zones can be held at different food holding temperatures.
Description
Technical field
The present invention relates in general to food service industry, relates more specifically to a kind of food serving bar (food servingbar) that was used for before giving the consumer with food supply food remained under the suitable temperature.
The present invention basically with the United States Patent (USP) 6735971 of authorizing Duke Manufacturing Company in same area, this patent is incorporated into this paper as a reference, this patent disclosure a kind of food serving bar that is used to heat or cools off the controlled temperature of the food in the food holding tray that is maintained at food serving bar.
The present invention relates more specifically to a kind of food serving bar under the suitable temperature of before supply hot food being remained on.This food serving bar is usually used in for example fast food industry, before various batchings (for example meat, cheese, rice, beans etc.) are kept at high temperature at the food manufactured goods (for example taco, burrito etc.) that generate heat.
Background technology
A kind of hot food serving bar commonly used in the fast food industry is commonly referred to steam table or water bath heat preservation device, and it comprises and is placed on multirow food holding tray in the hot water storgae or the top is in high temperature with the food that keeps holding in the food holding tray.This existing design efficiency is lower, because whole heated tank must remain in high temperature, this needs lot of energy to add hot water, and hot water is used for the heated food holding tray then.In addition, steam table can make the humidity of desk working environment on every side and temperature raise owing to the steam that adds the hot water storgae generation.The temperature of surrounding environment and the increase of humidity can increase the refrigeration demand of the HVAC system in restaurant.In addition, the increase of the humidity of surrounding environment needs extra cleaning and maintenance owing to the steam near the miscellaneous equipment the steam table condenses.In addition, the food that remains in the steam table is easy to spill in the hot water storgae, and this needs frequent clean.In addition, the maintenance groove of tank continually (for example every day) drain water and cleaning to keep the hygienic operation situation of steam table.In addition, existing hot food serving bar does not allow each the row food holding tray in the food serving bar or each food holding tray are carried out independently temperature control.
Therefore, need a kind of can be effectively and keep food efficiently---in particular for the food of the heat of preparation food manufactured goods---food serving bar.
Summary of the invention
In purposes more of the present invention, should point out, a kind of food serving bar that is used for keeping with parallel row a plurality of food holding trays is provided; The supplying counter that can heat the food in each dish at least one embodiment effectively substantially equably is provided; The supplying counter that can make economically and operate is provided; Such supplying counter is provided, and promptly this supplying counter can be operated the heat that passes to the different food products dish of supplying counter with change at least one embodiment; The food serving bar that has a plurality of temperature provinces that can be heated to different temperatures at least one embodiment is provided; Thereby provide than the compacter supplying counter that needs less space of traditional food supply equipment; And provide the supplying counter that can be used for easily improving traditional steam table equipment at least one embodiment.Can completely or partially realize at least one aforementioned purpose by the present invention described in the literary composition.
Usually, the food serving bar of controlled temperature of the present invention comprises at least one passage of being made by Heat Conduction Material of admitting at least one food holding tray along the length direction of food serving bar being used to of extending.Described at least one passage limits elongated dish receiving compartment, and this dish receiving compartment extends for use in placing described at least one food holding tray in the position of coiling any hope of receiving compartment along this along the length direction of food serving bar.Described at least one passage comprises at least two layers in one group of layer, and described one group of layer comprises heat-conducting layer, outside heat-sink shell (heat sink layer) and is used to protect the internal layer of this heat-conducting layer.Temperature control system comprises that being used to heat described at least one passage is in food with the food that keeps keeping in the food holding tray and keeps at least one heating element heater under the temperature.
In another aspect of the present invention, the food serving bar of described controlled temperature comprises at least one passage of being made by Heat Conduction Material of admitting at least one food holding tray along the length direction of food serving bar being used to of extending.Described at least one passage limits elongated dish receiving compartment, and this dish receiving compartment extends for use in placing described at least one food holding tray in the position of coiling any hope of receiving compartment along this along the length direction of food serving bar.Described at least one passage comprises at least one layer in one group of layer, and described one group of layer comprises heat-conducting layer, outside heat-sink shell and is used to protect the internal layer of this heat-conducting layer.Temperature control system comprises that being used to heat described at least one passage is in food with the food that keeps keeping in the described food holding tray and keeps at least one heating element heater under the temperature.Described at least one passage has at least two different temperature provinces of extending along the length direction of this passage, and the food in the wherein different temperature provinces can remain in different food and keep temperature.
In another aspect of the present invention, the food serving bar of controlled temperature comprises bin with groove, have at least one heat-conducting layer of outer surface and inner surface and be used for supporting system at described at least one heat-conducting layer of groove internal support of described bin.At least one food holding tray in this groove contacts with the inner surface of this heat-conducting layer heat with conducting.Temperature control system comprises and is used to heat at least one heating element heater that food that described at least one heat-conducting layer is in hope with the food that keeps keeping in described at least one food holding tray keeps temperature.
In another aspect of the present invention, the temperature control system that is used for such food serving bar (promptly this food serving bar comprises the bin with groove) comprise have outer surface with the conduction of at least one food holding tray heat at least one heat-conducting layer of the inner surface that contacts.Supporting system is at described at least one heat-conducting layer of the groove internal support of described bin.Described at least one heat-conducting layer of at least one heating element heater heating keeps temperature with the food that the food that keeps keeping in described at least one food holding tray is in hope.
Other purpose of the present invention and characteristic are conspicuous, and part is pointed out hereinafter.
Description of drawings
Fig. 1 is the perspective view of the food serving bar of the first embodiment of the present invention;
Fig. 2 is a perspective view of removing first embodiment of food holding tray;
Fig. 3 is the partial vertical sectional view of Fig. 2 that the passage of food serving bar is shown;
Fig. 3 A is the thin portion of the amplification of Fig. 3;
Fig. 4 is the passage of first embodiment of food serving bar and the decomposition diagram of the food holding tray in the passage;
Fig. 5 is the view that is similar to Fig. 3, and it illustrates the second embodiment of the present invention;
Fig. 6 is the bottom detailed perspective view of the passage of second embodiment;
Fig. 7 is the view that is similar to Fig. 5, and it illustrates the third embodiment of the present invention;
Fig. 8 is the bottom detailed perspective view of the passage of the 3rd embodiment;
Fig. 9 is the detail, bottom of the optional embodiment of the heating element heater that takes out from food serving bar of the present invention;
Figure 10 is the electrical schematic diagram of an embodiment of temperature control system of the present invention;
Figure 11 is the electrical schematic diagram of second temperature control system of the present invention;
Figure 12 is the schematic diagram that the temperature grid of food serving bar of the present invention is shown;
Figure 13 is the perspective view of the 4th embodiment of food serving bar;
Figure 14 is the perspective view of the 5th embodiment of food serving bar;
Figure 15 is the cutaway view of the 6th embodiment of food serving bar;
Figure 16 is the cutaway view of the 7th embodiment of food serving bar; And
Figure 17 is the cutaway view of the 8th embodiment of food serving bar.
Corresponding components is indicated with corresponding label in the accompanying drawings.
The specific embodiment
With reference to Fig. 1, food serving bar of the present invention is generally with label 1 indication.Food serving bar 1 is particularly useful for heating the food (not shown) in the food holding tray 5 that is maintained in the supplying counter.Food serving bar 1 can be used as the water that is used for being installed in existing steam table (not shown) and keeps the modified device of groove or other existing food serving bar to be provided, and perhaps this food serving bar can be used as the complete device with the bin (not shown) that is used to support food serving bar and is provided.
In the embodiment of Fig. 1-4, food serving bar 1 comprises generally with 9 three passages of indicating, each passage limits an elongated dish receiving compartment 11, and this dish receiving compartment is placed food holding tray 5 in the position in any hope along the longitudinal extension of food serving bar so that along this chamber.Food serving bar 1 has generally the frameworks with 15 indications, and this framework has two substantially parallel vertical sides 17 and two substantially parallel ends 19 around the periphery of supplying counter.Framework 15 supports the passage 9 of food serving bar 1 the bin (not shown) of the part that can create food serving bar, the bin of reusing from existing food supply equipment (for example steam table) or other suitable supporting structure.Pipe supporting structure is not how, and food serving bar 1 is usually located at the food preparation zone in restaurant, and this zone uses the batching that keeps in the food holding tray 5 to prepare the work top of food manufactured goods near being used to usually.
As shown in the specific embodiment of Fig. 3; each passage 9 has a plurality of layer, comprise the heat-conducting layer 25 that extends along the length direction of food serving bar 1, be connected the outside heat-sink shell 29 of this heat-conducting layer outside and be arranged on heat-conducting layer and food disc 5 between be used to protect the heat-conducting layer can be owing to food overflows the internal layer 31 that is corroded from food disc.In the embodiment of Fig. 1-4, each layer 25,29,31 of passage 9 all has the cross section with diapire and two sidewalls that is roughly U-shaped.Internal layer 31 defines the dish receiving compartment 11 that extends along the length of food serving bar 1.End cap 39 sealings are all passed through in the end of each passage.In the embodiment shown, three passages 9 are shown, but this quantity variable (for example two, four or more than four).Food serving bar 1 has uses 43 temperature indicative control systems generally, and this temperature control system comprises that being used on the outer surface that is connected in each outside heat-sink shell 29 heat the heating element heater 45 of corresponding passage 9.When temperature control system 43 operation, heating element heater 45 heating heat-sink shells 29 are distributing heat equably in the diapire of each passage 9 and sidewall, thereby all foods in each food holding tray 5 are maintained under the optimum temperature.As used in the text, term " heating element heater " is meant the device that is used for heat tunnel 9 of any kind, comprises one or more resistance heaters, one or more hot fluid pipeline, wherein Hot air quilt is directed in the passage with the forced air system of heat tunnel or wherein the jet of high pressure, high velocity, hot air is directed to pneumatic power system on the wall of passage.Should be understood that temperature control system 43 can carry every foot about 50-500 watt heat along the length direction of each passage 9, and temperature control system can be carried the heat of other quantity and can not deviated from scope of the present invention.
In the embodiment shown in Fig. 1-4, each heat-conducting layer 25 of passage 9 comprises diapire 47, from the upwardly extending pair of sidewalls 49 of this diapire with along vertical flange 55 of the upper end of this sidewall.Flange 55 is laterally outwards outstanding from each sidewall 49 in the plane of the diapire 47 that is basically parallel to heat-conducting layer 25.The outboard flanges 55 of two external channels 9 (one of them only is shown among Fig. 3) covers on the corresponding vertically side 17 of framework 15 of food serving bar 1.The medial flange 55 of two external channels 9 covers on the respective flanges of center-aisle.With the separators of 61 indications, its length along food serving bar 1 is extended so that each dish receiving compartment 11 is separated generally for the adjacent wall 49 of adjacent heat-conducting layer 25 and 55 formation of overlapping flange.Separator 61 can have the wear resistant caps (not shown), and can comprise the insulator (not shown) to reduce from the heat loss of heating element heater 45.Thermodynamic barrier and/or wear resistant caps in the separator 61 can be used for making the end face of food serving bar 1 heat insulation, thereby keep them cool so that tangible.
Heat-conducting layer 25 can be made with the metallic plate of bending or the Heat Conduction Material that is extruded or casts (for example aluminium or stainless steel), and can comprise single member or be joined together to form a plurality of members of this layer.In the embodiment shown, heat-conducting layer 25 comprises the thick stainless steel of 18gauge (1.2mm), but heat-conducting layer can comprise other material and can have other thickness and can not deviate from scope of the present invention.
In the embodiment of Fig. 1-4, the outside heat-sink shell 29 of each passage 9 comprises the elongated portion that extrudes, and this portion of extruding is connected on the outer surface of heat-conducting layer 25 of each passage.Outside heat-sink shell 29 is preferably thick than heat-conducting layer 25, thereby this exterior layer conducts equably in the entire longitudinal length of the diapire 47 of the heat-conducting layer of each passage 9 and sidewall 49 and distributes heat from heating element heater 45.In one embodiment, heat-sink shell 29 comprises the heat-conducting metal (for example aluminium) of thickness at least 1/8 inch (3.2mm), it should be understood that, can use other material and thickness.In an illustrated embodiment, outside heat-sink shell 29 is connected on this heat-conducting layer by the heat-conductive bonding agent (for example hot glue stick) between the heat-conducting layer 25 of itself and each passage 9, it should be understood that, also can use other suitable fixture known in the art (for example threaded fastener, rivet, athermanous adhesive etc.).
In the embodiment of Fig. 1-4, the outside heat-sink shell 29 of each passage 9 have be roughly U-shaped have diapire 65 and from the cross section of upwardly extending two sidewalls 69 of this diapire.Selectively, heat-sink shell 29 can only comprise the single diapire (for example, seeing Fig. 5) that contacts with the diapire 47 of heat-conducting layer 25.In addition, heat-sink shell 29 can with shown in embodiment different, difference is that sidewall 69 may extend to corresponding flange 55 places of heat-conducting layer 25, and perhaps this sidewall can extend upward than the little distance of distance shown in Fig. 1-4 from diapire 65 and can not deviate from scope of the present invention.In addition,, it is contemplated that, can on the part of one or more passages of food serving bar 1 or whole passage, omit this heat-sink shell and can not deviate from scope of the present invention although the heat-sink shell of illustrated embodiment 29 extends along the whole length of passage 9.
Shown in Fig. 3 and 4, the internal layer 31 of each passage 9 has lining, the diapire 47 of the heat-conducting layer 25 of this liner protector passage and sidewall 49 not with the Food Contact of overflowing from the food holding tray 5 that is maintained in this passage.In an illustrated embodiment, each lining 31 is along the longitudinal extension of food serving bar 1, and shape forms and is received within the passage 9 so that contact with the inner surface of heat-conducting layer 25.Preferably, lining 31 is made by corrosion-resistant and easy cleaned Heat Conduction Material (for example plastics).In an illustrated embodiment, the shape of each lining 31 all is similar to each heat-conducting layer 25, thereby each lining covers corresponding heat-conducting layer, and is arranged between food holding tray 5 and the heat-conducting layer.Should be understood that lining 31 can have other shape and size and can not deviate from scope of the present invention.For example, lining 31 can comprise the vertical section in the passage of being contained in of separation, thereby can omit lining from the part of passage.Selectively, can in one or more passages 9, omit whole lining 31 and can not deviate from scope of the present invention.In addition, each lining 31 can spray or be coated on the inner surface of heat-conducting layer 25, and perhaps each lining can be a moulded parts.
In the embodiment of Fig. 1 and 4, the temperature of each passage 9 is by heating element heater 45 controls, and this heating element heater comprises near the stratie so that passage is evenly heated near the other end that extends to this passage the end of passage 9.In the embodiment shown, each heating element heater 45 all has two terminals 83 that are used to be connected to power supply of an end of contiguous respective channel.When electric current when each heating element heater 45, from the heat of this heating element heater layer 25,29,31 by each passage to heat food holding tray 5 in each passage and the food that wherein holds.As shown in Figure 4, each heating element heater 45 all is provided with in the serpentine mode, thereby it contacts with diapire 65 with heat conduction with the sidewall 69 of the heat-sink shell of each passage 9.In the embodiment shown in fig. 4, each heating element heater 45 comprises a series of rings that separate at a distance of certain intervals ground with 85 length directions along passage 9 of indicating generally, each ring has an a pair of substantially parallel extension 87 and a bend 89, this extension 87 extends across the diapire of passage and extends upward on the opposing sidewalls of passage, the substantially parallel extension of these bend 89 connecting rings.In the embodiment shown, heating element heater 45 is configured to pass through and has basic uniform power density, thereby the heat of surf zone that is delivered to heat-conducting layer 25 is even substantially along the length of passage 9.As a result, the adjacent food holding tray 5 that remains in each passage 9 is heated to roughly the same temperature.
Should be understood that heating element heater 45 and heat-sink shell 29 can be arranged to directly to heat one or two in the sidewall 49 of heat-conducting layer 25 and can not deviate from scope of the present invention.In addition, heating element heater 45 of the present invention can comprise the section of the two or more separation with similar and different rated power, and described section is connected to current source.In addition, heating element heater 45 can comprise single heating element heater, and this heating element heater has variable power density along its length, thereby generates the heat that changes by the electric current by this heating element heater.
(Fig. 1-4) in one embodiment, each heating element heater 45 all keep contacting with the heat-sink shell 29 of each passage 9 by closed material layer 95 (for example aluminium foil), and this closed material layer covering heating elements also is connected to the outside of heat-sink shell by adhesive.One insulating barrier can center on heating element heater 45 to stop the heat loss from this heating element heater between the outer surface of confining bed 95 and heat-sink shell 29.Should be understood that heating element heater 45 can be fixed on the passage 9 by other method of attachment (for example at the carriage along the position of heating element heater) and can not deviate from scope of the present invention.
Fig. 5 and 6 illustrates the optional embodiment of food serving bar 121, and this food serving bar has the one or more heating element heaters 125 that contact with heat-sink shell 129, and this heat-sink shell is connected to generally on the diapire 131 with the heat-conducting layer 133 of the passages of 135 indications.In this embodiment, heat is the bottom of feed path 135 only, it should be understood that, heat is assigned on the sidewall 137 of heat-conducting layer 133 by conduction, thus the sidewall of heat-conducting layer and diapire 131 heated food holding tray 5 all.Should be understood that heating element heater 125 and heat-sink shell 129 can be arranged to directly to heat one or two in the sidewall 137 of heat-conducting layer 133 and can not deviate from scope of the present invention.In addition, heating element heater 125 of the present invention can comprise the section of the two or more separation with different rated power, described section is connected to current source, perhaps, this heating element heater can comprise single heating element heater, this heating element heater has variable power density along its length, thereby generates the heat that changes by the electric current by this heating element heater.
Fig. 7 and 8 illustrates the optional embodiment of food serving bar 151, wherein passage 153 extends along the length direction of food serving bar, and each passage includes heat-conducting layer 155 and the backing layer 157 (having removed the heat-sink shell 29 of first embodiment) that is arranged on this heat-conducting layer.In this embodiment, the heating element heater 161 of temperature control system directly is connected on the heat-conducting layer 155 of passage 153.As shown in Figure 7, heating element heater 161 to be being connected with the similar mode of the heating element heater of front embodiment, and is arranged to provide even heating along the length direction of passage 153.As shown in Figure 8, each heating element heater 161 has two terminals 163 that are used to be connected to the power supply (not shown) of an end of contiguous respective channel 153.The heating element heater 45 of the heating element heater 161 and first embodiment is provided with similarly, wherein each heating element heater comprises a series of rings that separate at a distance of certain intervals ground with 165 length directions along passage 153 of indicating generally, each ring has an a pair of substantially parallel extension 167 and a bend 171, this extension 167 extends across the diapire of passage and extends upward on the opposing sidewalls of passage, the substantially parallel extension of these bend 171 connecting rings.Should be understood that the heating element heater 161 of this embodiment can be in any of the above methods or any alternate manner known in the art change, the heat of variation is provided with the length along each passage.
Fig. 9 illustrates the optional embodiment that is used for providing along the longitudinal length of passage 135 heating element heater 181 of variable heat.Specific heating element heater 181 shown in Fig. 9 is removed from the food serving bar 121 of Fig. 5 and 6, and size forms the diapire 131 that is used to heat heat-conducting layer 133.The heating element heater 181 of Fig. 9 has two terminals 183 being used to be connected to power supply and generally with two end section of 185 indications, described end section be constructed with than heating element heater generally with the 189 high power densities of centre portion of indicating.When electric current passes through the heating element heater 181 of Fig. 9, produce three different heating regions, each heating region all extends along the length direction of passage 135.Should be understood that and the heating element heater that similarly contacts with diapire 65 with the sidewall 69 of heat-sink shell 29 with the element of Fig. 1-4 can be set in a similar fashion to produce two or more different heating regions.For example, the ring 85 of heating element heater 45 can be at interval nearer with zone that one or more higher power densities are provided to produce higher temperature, perhaps at interval farther with zone that one or more lower-wattage density are provided to produce lower temperature.In addition, the heating element heater of any embodiment of the present invention can have along the section of the separation with similar and different power density of the length direction extension of passage, described section in series is electrically connected to single power supply, and perhaps each section can be by the control of its oneself power supply.
Figure 10 illustrates the schematic diagram of an embodiment of the temperature control system 201 of the temperature that is used to control the food holding tray 5 in the food serving bar 1, and this food serving bar has at least three passages 9 and is electrically connected at least three heating element heaters 45 (heating element heater of each passage) of power supply 203.This temperature control system comprises temperature controller 205, and this temperature controller receives signal from the temperature sensor 209 in the food serving bar 1, and allows the operator to regulate the temperature of the food holding tray 5 in the food serving bar.Temperature controller 205 can be used for increasing or reducing to supply with according to the input that receives from the operator magnitude of current of three heating element heaters 45.In addition, control system 201 comprises relay 213, and this relay allows all heating element heaters of food serving bar are carried out ON/OFF control simultaneously.In the embodiment of Figure 10, heating element heater 45 connects up in parallel, thereby the magnitude of current that heating element heater was set and sent to the temperature of all passages 9 according to the temperature of controller 205 increases or reduces.The heating element heater 45 that should be understood that each passage 9 can have different resistance, thus each passage in food holding tray 5 can remain in other passage in the different temperature of food holding tray.In addition, heating element heater 45 can be constructed with variable power density---and for example as shown in Figure 9, thereby the temperature of crossing the length of each passage 9 can change.Temperature control system 201 shown in Figure 10 allows to set the temperature that makes all three passages 9 by the single temperature of regulating temperature controller 205 and raises or reduction.It is contemplated that temperature sensor 209 can be positioned at central passage 9 or two external channels.In addition, each passage 9 can have independent temperature sensor 209, regulates the magnitude of current that flows to food serving bar 1 thereby can set according to the maximum in three passages 9 any one or minimum temperature.In addition, each passage 9 can have a plurality of temperature sensors 209 so that set for each passage provides a plurality of temperature.
Figure 11 illustrates generally the schematic diagram with second temperature control systems of 221 indications, and wherein the temperature of each passage 9 of food serving bar 1 temperature that can be independent of other passage is regulated.The temperature control system 221 of this embodiment comprises temperature controller 225, and this temperature controller is from being independent of the temperature sensor that separates 229 received signals that other passage ground and each passage 9 of food serving bar 1 are associated.Temperature controller 225 has operator interface 231 (shown in Figure 11 is " display "), the temperature that this interface allows operator's monitoring and regulates each passage 9 of food serving bar 1.Touch-screen or other display unit of the electric current of each passage read and allowed to offer according to the adjustment that is shown to the operator to the temperature that operator interface 231 can provide passage 9.In this embodiment, each heating element heater 45 has special-purpose heater circuit, and it has special-purpose current sensor 235 and on/off relay 239 is controlled the electric currents that flow through each heating element heater with permission separately by temperature controller 225.Like this, can be by regulating the temperature that the magnitude of current comes and two other passage is regulated each passage 9 independently that flows to each heating element heater 45 from power supply 245.
Should be understood that each heating element heater 45 can be constructed with variable power density---for example as shown in Figure 9, thereby along the variable temperaturesization of the length of each passage.In addition, the temperature control system of Figure 11 can be arranged so that also one or more passages 9 have a plurality of heating element heaters 45, each heating element heater all can be controlled independently by independent current sensor 235 and relay 239, to allow control along the temperature in the discrete heating region of the length direction extension of each passage.For example, the schematic diagram of the temperature control system 221 shown in Figure 11 illustrates this temperature system that can independently control that is used for single passage 9, wherein this passage has the heating region that three discrete length directions along passage extend, and each zone has special-purpose heating element heater 45 and current sensor 235.Should be understood that temperature control system 221 can be arranged to independently controlling greater or less than three heating region and can not deviating from scope of the present invention.
Figure 12 illustrate can be by any one realization in the said temperature control system 201,221 food serving bar of the present invention 1 use 261 temperature indicative grids generally.Each horizontal line 263 of grid 261 is represented the passage 9 of the heating region that is divided into three separation 265 of food serving bar 1.Each heating region can be corresponding to the single food holding tray 5 in the food serving bar 1 or the position of a plurality of food holding trays.The heating element heater 45 of each passage 9 is configured to provide the heating region 265 of separation as described above.For example, the heating element heater 45 of the top passageway 9 shown in the grid 261 has three different zones 265, and each zone has different temperature and sets (T1, T2 and T3).Center-aisle 9 has heating element heater 45, and this heating element heater is set (T3) for two end heating regions 265 provide identical temperature, and sets (T1) for zone line 265 provides different temperature.The heating region 265 that should be understood that each passage can have that identical temperature is set or each temperature province can have different temperature and sets, and can not deviate from scope of the present invention.In addition, each heating region 265 can comprise heating element heater 45 and the temperature sensor that can independently control, to allow to control independently the temperature in each heating region.In one embodiment, the setting of the temperature of each passage 9 can be from about 150 (66 ℃) to about 250 (121 ℃).The retention time of the food that keeps in the food holding tray 5 of food serving bar 1 is typically about 4 hours, it should be understood that this retention time can change according to the type (for example meat, cheese, beans etc.) of the food that keeps in this food serving bar.
In a specific embodiment of the present invention, the total length of food serving bar 1 is about 39 inches (99cm), and overall width is about 21.5 inches (54.6cm).The size of three passages 9 forms and makes that width of each dish receiving compartment 11 is about 6 inches (152mm) to hold No. 1/3 of standard (6-15/16 inch * 12-3/4 inch (175mm * 374mm)) food storage dish, No. 1/6 (6-7/8 inch * 6-1/4 inch (175mm * 159mm)) dish and No. 1/9 (6-7/8 inch * 4-1/4 inch (175mm * 108mm)) dish.Should be understood that any combination that in the food serving bar 1 of illustrated embodiment, can use No. 1/3, No. 1/6 and No. 1/9 food holding tray.In the embodiment in figure 1, each passage 9 of food serving bar 1 keeps two 1/3 dialers 5 in the end of passage, and keeps one 1/6 dialer 7 between two end-caps.Should be understood that food serving bar 1 can keep other the dish size combination (for example four 1/6 dialers and two 1/9 dialers) and can not deviate from scope of the present invention.It is contemplated that in addition the size of the passage 9 of food serving bar 1 of the present invention can form holds any other standard food holding tray size (for example full-scale dish (full-sizepans)) or non-standard food holding tray size.
Figure 13 illustrates the optional embodiment of food serving bar of the present invention, and each food serving bar (generally with 281 indications) has and similar substantially four passages of the passage 9 of first embodiment (generally with 283 indications).In the embodiment of Figure 13, the length of food serving bar 281 increases, thereby each passage 283 can hold two No. 1/3 food holding trays 287 and three No. 1/6 food holding trays 289.Should be understood that other combination (for example four No. 1/6 food holding trays and six No. 1/9 food holding trays) of receivability dishes in the passage 283 of this embodiment and can not deviate from scope of the present invention.
Figure 14 illustrates generally the optional embodiment with the food serving bars of 293 indications, have six passages but the embodiment of this food serving bar and front is similar, each passage all forms with 295 indications and size generally and admits three 1/3 dialers 297, or two 1/3 dialers and two 1/6 dialers 299.Should be understood that other combination (for example six 1/6 dialers and nine 1/9 dialers) of receivability dish in the passage 295 and can not deviate from scope of the present invention.
Food serving bar of the present invention is compared with existing food serving bar technology has some advantages.These advantages comprise and can will keep the temperature subregion by control area of using one or more heating element heaters with variable power density, separation or the segmented heating element with different rated power; Do not need evenly heated food dish of hot water; Eliminate or reduced maintenance time/cost; And be used for realizing energy-conservation by making of more effective direct conduction heat transfer and heat-sink shell.In addition, food serving bar of the present invention is compacter than the tank food serving bar of prior art, and has more vertical space to can be used for storage in the present invention.
Should understand, food serving bar of the present invention can be used as to have and is used to support this food serving bar and is provided with the complete device that is installed in the bin in the restaurant, and perhaps this food serving bar can be used as the modified device that is used to be installed on the existing food serving bar and is provided.For example, the food serving bar of the present invention water that can be supported in the existing steam table food serving bar that water has been discharged from keeps in the groove.Resulting improved supplying counter will have all advantages of the present invention, comprise the higher efficiency of heating surface and to the variable heating of the food holding tray in the supplying counter.Should be understood that any embodiment with all temps control characteristic described in the literary composition can be used as to the remodeling of existing food serving bar or as complete device.
Figure 15 illustrates of the present invention generally with the optional embodiment of food serving bars of 401 indications.In this embodiment, food serving bar 401 comprise in the bin 407, bin generally with the grooves of 411 indications with generally with 421 a plurality of (for example three) heat-conducting layers of indicating, described groove 411 has bottom surface 413, relative sidewall 415,417, relative end (not shown), with the supporting system supporting of 425 indications, this supporting system is installed on the bottom surface of described groove described heat-conducting layer by generally.In the embodiment of Figure 15, the form of each heat-conducting layer 421 is the passage of the upward opening that limits an elongated dish receiving compartment 429, this dish receiving compartment extends along the length direction of food serving bar 401, so that place one or more food holding trays 433 in the position along any hope in this chamber.Dish receiving compartment 429 preferably is parallel to each other.In the embodiment shown, each heat-conducting layer 421 is as heat-sink shell and can form the single parts that extend on the whole length of groove 411 substantially, or selectively, it can form mutual next-door neighbour or a series of short parts of the end-to-end placement in ground that reclines.Heat-conducting layer 421 contacts with food holding tray 433 direct heat preferably to heat the food that keeps in this dish by the conduction heat transfer from this heat-conducting layer to dish.As used in the text, term " direct heat contact " is that the outer surface of graduated dial 433 contacts (promptly Face to face with the inner surface of corresponding heat-conducting layer, on two surfaces or very close to each other between certain zone on these two surfaces at least), the inner surface that perhaps is close to heat-conducting layer is settled (that is, the gap is 0.5 inch or littler).In fact, need certain little gap (0.5 inch or littler) to help from corresponding heat-conducting layer taking-up dish.
As the previous embodiment, each heat-conducting layer 421 can have generally the heating element heaters with 441 indications, and this heating element heater is connected in the temperature control system (not shown) so that described heat-conducting layer is heated to common temperature or selected different temperatures.Each heat-conducting layer 421 is distributed to heat the food holding tray 433 that contacts with this heat-conducting layer direct heat equably.
In the embodiment of Figure 15, supporting system 425 comprises the elongated passage component 451 under shed, and these parts have the reclinate sidewall 457,459 that is roughly flat roof 455 and the bottom surface 413 that contacts groove 411 of three heat-conducting layers 421 of supporting.Each heat-conducting layer 421 is connected on the passage component 451 by cramp bar 463, and this cramp bar can be threaded securing member (for example bolt) or other supporting member (for example stud bolt, rivet etc.).Supporting system 425 can have other configuration and can not deviate from scope of the present invention.
As shown in figure 15, each in two external channel shape heat-conducting layers 421 includes diapire 467, the exterior side wall 469 adjacent with the respective side walls 415,417 of groove 411 and the internal side wall 471 with the vertical flange 475 that contacts with middle tunnel-shaped heat-conducting layer.Be provided with seal 481 between in the exterior side wall 469 of two external channels 421 each and the corresponding sidewall of groove 411 415,417, drop in the space between passage and the groove sidewall to prevent food 437.Middle heat conductive layer 421 has diapire 485 and two relative sidewalls 487,489, and each sidewall has vertical flange 491,493 in the top, and this flange contacts the respective flanges 475 of described two outside heat-conducting layers.
Figure 16 illustrate with the embodiment of Figure 15 similarly generally with the optional embodiment of 521 food serving bars of indicating.In the embodiment of Figure 16, food serving bar 521 comprises generally a plurality of (for example three) heat-conducting layers with 523 indications, and the form of this heat-conducting layer supports the absorber plate of the elongated almost parallel of the food holding tray 527 in the groove of food serving bar 521 for the length direction along groove 529 being used to of extending.Absorber plate 523 by being connected groove 529 diapire 539 and/or the carriage 531,533 on the sidewall 541,543 be installed in the groove 529.As the previous embodiment, with the heating element heaters heating of 547 indications, this heating element heater can be to be connected the stratie 549 on the outer surface of absorber plate 523 and/or to be connected (descending) the lip-deep metal tube heater outward of absorber plate and/or the heating element heater of any other type by carriage 555 by metal forming by generally for absorber plate 523.Food serving bar 521 also comprises on the vertical end wall (not shown) that is connected groove 529 so that food holding tray 527 is placed in two dish support dividers 559 (for example partition rod) in the groove.In the embodiment of Figure 16, the antelabium 561 of food holding tray 527 is by the sidewall 541,543 and 559 supportings of dish support dividers of groove 529.The bottom surface 565 of food holding tray 527 contacts (defining as mentioned) and preferably heat conduction contact with end face 567 direct heat of each absorber plate 523, thus the conduction heat heating that each food holding tray is transmitted from corresponding absorber plate.
In the embodiment of Figure 16, two outer heat sink plates 523 are bearing in by a supporting system in the groove 529 of food serving bar, and this supporting system comprises two the interior support carriages 531 on the diapire 539 that is connected groove and is connected two external support carriages 533 on the respective side walls 541,543 of groove.Inside and outside frame support bracket 531,533 has the cooperation shoulder 571,573 that engages outer heat sink plates 523.Two interior support carriages 531 supportings of middle heat sink plate 523 by having the cooperation shoulder 575,577 that engages middle heat sink plate.Absorber plate 523 can be bearing in the groove 529 by other device.
Figure 17 illustrates the similar optional embodiment with the embodiment of Figure 15 and 16, but this embodiment has the detachable heat-absorbing model 603 that is supported in generally with on the bottom surface 607 of the groove 609 of the food serving bars of 601 indications.The same with the embodiment of Figure 15 and 16, the food serving bar 601 of Figure 17 has generally a plurality of (for example three) heat-sink shells with 613 indications, and this allows the food holding tray 617 in this course food serving bar directly to carry out conduction heat transfer.As shown in figure 17, heat-conducting layer 613 comprises the passage of elongated upward opening, and the size and dimension of this passage forms admits food holding tray 617.As the previous embodiment, food holding tray 617 supports separator 629 (for example partition rod) supporting by the sidewall 623,625 of groove 609 and the dish that is connected on vertical end wall (not shown) of this groove.In addition, heat-conducting layer 613 is heated by heating element heaters with 635 indications generally, and this heating element heater can be to be connected the stratie 637 on the outer surface of heat-conducting layer and/or to be connected metal tube heater 643 on the outer surface of heat-sink shell by carriage and/or the heating element heater of any other type by metal forming 639.
In the embodiment of Figure 17, heat-conducting layer forms and has with the corresponding diapire 659 of food holding tray 617 and contact with sidewall 661,663 direct heat the diapire 651 of (definition as mentioned) and the passage of two sidewalls 653,655.The one or more heat-conducting layers 613 that should be understood that this embodiment 601 can also be the absorber plates that only contacts with the diapire of food holding tray and can not deviate from scope of the present invention.
As shown in figure 17, each heat-conducting layer 613 all is bearing in the groove 609 by a supporting system, and this supporting system comprises a plurality of supporting members 671 that contact with the bottom surface 607 of groove 609.As shown in the figure, each supporting member with 671 indications are shapes of inverted-channel generally, and it has the roof 673 of outer (descend) surperficial 675 of thermal contact conductance layer 613 and two sidewalls 677 of the bottom surface 607 that contacts groove 609.In the embodiment shown, the roof 673 of supporting member 671 also support can with the similar heating element heater 635,643 of above-mentioned heating element heater.Supporting member 671, heating element heater 635 and heat-conducting layer 613 form dismountable heat-absorbing model 603, and this module can be placed in the groove 609 of bin 681 and take out from this groove.
Referring again to Figure 17, infill panel 687 bridge joints of the gap 683 between the adjacent supports 671 by contacting with the roof 673 of supporting member.Infill panel 687 prevents that food 689 from spilling in the gap 683 between the supporting member.Infill panel 687 can fix (for example welding) on supporting member 671 to form stiff member, this assembly can be used as parts and takes out from groove 609.Should be understood that infill panel 687 can omit or be free of attachment on the supporting member to allow being placed on this supporting member in the groove independently or to take out and can not deviate from scope of the present invention from groove from food serving bar 601.
Should be understood that food serving bar of the present invention can be used as and has the complete device that is used to be installed in the bin in the restaurant and be provided, perhaps this food serving bar can be used as the modified device that is used to improve existing food serving bar and is provided.For example, the food serving bar of the present invention water that can be contained in the existing steam table that water has been discharged from keeps in the groove.Resulting improved supplying counter will have all advantages of the present invention, comprise the higher efficiency of heating surface and to the variable heating of the food holding tray in the supplying counter.Should be understood that any embodiment with all temps control characteristic described in the literary composition can be used as original device, has the complete device installation of bin or is used to improve existing food supply equipment.
When introducing the element of the present invention or its preferred embodiment, article " ", " being somebody's turn to do " and " described " are meant and have one or more these elements.Term " comprises ", " comprising " and " having " will be inclusive, and is meant also has other element except the element of listing.
In view of above, as seen realized purposes more of the present invention and obtained other favourable result.
All the elements that comprise in the above-mentioned specification or shown in the drawings can not deviate from scope of the present invention because can in said structure, carry out multiple change, so all will be understood that it is illustrative and not restrictive.
Claims (34)
1. the food serving bar of a controlled temperature comprises:
Admit at least one passage of making by Heat Conduction Material of at least one food holding tray along the length direction of food serving bar being used to of extending, described at least one passage limits elongated dish receiving compartment, this dish receiving compartment extends for use in placing described at least one food holding tray in the position of coiling any hope of receiving compartment along this along the length direction of food serving bar
Described at least one passage comprises at least two layers in one group of layer, and described one group of layer comprises heat-conducting layer, outside heat-sink shell and be used to protect the internal layer of described heat-conducting layer, and
Temperature control system, this temperature control system comprise that being used to heat described at least one passage is in food with the food that keeps keeping in described at least one food holding tray and keeps at least one heating element heater under the temperature.
2. according to the food serving bar of the controlled temperature of claim 1, it is characterized in that described at least one passage comprises a plurality of passages, each in described a plurality of passages all is heated independently with other passage.
3. according to the food serving bar of the controlled temperature of claim 1, it is characterized in that, described at least one passage comprises at least two different temperature provinces of extending along the length direction of this passage, and the food holding tray that described temperature control system keeps in each described temperature province provides variable heat.
4. according to the food serving bar of the controlled temperature of claim 1, it is characterized in that described at least two layers of described at least one passage comprise in heat-conducting layer and outside heat-sink shell and the internal layer.
5. according to the food serving bar of the controlled temperature of claim 1, it is characterized in that described at least two layers of described at least one passage comprise heat-conducting layer and internal layer.
6. according to the food serving bar of the controlled temperature of claim 5, it is characterized in that described at least two layers also comprise heat-sink shell, this heat-sink shell contacts with described heat-conducting layer.
7. according to the food serving bar of the controlled temperature of claim 1, it is characterized in that described food serving bar is the modified device that is used to be installed on the existing food serving bar.
8. the food serving bar of a controlled temperature comprises:
Admit at least one passage of making by Heat Conduction Material of at least one food holding tray along the length direction of food serving bar being used to of extending, described at least one passage limits elongated dish receiving compartment, this dish receiving compartment extends for use in placing described at least one food holding tray along any desired location place of this dish receiving compartment along the length direction of food serving bar
Described at least one passage comprises at least one layer in one group of layer, and described one group of layer comprises heat-conducting layer, outside heat-sink shell and be used to protect the internal layer of described heat-conducting layer, and
Temperature control system, this temperature control system comprise that being used to heat described at least one passage is in food with the food that keeps keeping in described at least one food holding tray and keeps at least one heating element heater under the temperature,
Described at least one passage comprises at least two different temperature provinces of extending along the length direction of this passage, and the food in the wherein different temperature provinces can remain in different food and keep temperature.
9. the food serving bar of controlled temperature according to Claim 8 is characterized in that, described temperature control system provides variable heat to described at least one passage.
10. the food serving bar of controlled temperature according to Claim 8 is characterized in that, described at least one heating element heater has variable power density, to keep heating under the temperature food in the different temperature provinces at different food.
11. the food serving bar of controlled temperature according to Claim 8 is characterized in that, described at least one passage comprises three passages, and described at least one heating element heater comprises each a heating element heater that is used for heating described three passages.
12. the food serving bar according to the controlled temperature of claim 11 is characterized in that each heating element heater has different resistance, keeps under the temperature thereby the food holding tray in each passage can be remained on different food.
13. the food serving bar according to the controlled temperature of claim 12 is characterized in that described temperature control system has operator interface, this operator interface makes the food that can regulate each passage simultaneously keep temperature.
14. food serving bar according to the controlled temperature of claim 12, it is characterized in that, described temperature control system has operator interface, and the food that this operator interface makes the food that can be independent of other passage keep temperature to regulate each passage keeps temperature.
15. the food serving bar according to the controlled temperature of claim 14 is characterized in that, described temperature control system comprises and is used for the special-purpose heater circuit that the electric current of each heating element heater is flow through in control separately.
16. the food serving bar of controlled temperature according to Claim 8 is characterized in that, described temperature control system comprises at least two heating element heaters of the food in described at least two the different temperature provinces that are used to heat described passage.
17. the food serving bar according to the controlled temperature of claim 16 is characterized in that described temperature control system has operator interface, this operator interface makes the food that can regulate each temperature province independently keep temperature.
18. the food serving bar of a controlled temperature comprises:
Bin with groove,
At least one heat-conducting layer with outer surface and inner surface,
Be used for supporting system at described at least one heat-conducting layer of groove internal support of described bin,
At least one the food holding tray that in described groove, contacts with the inner surface heat of described heat-conducting layer with conducting, and
Temperature control system, this temperature control system comprise and are used to heat at least one heating element heater that food that described at least one heat-conducting layer is in hope with the food that keeps keeping in described at least one food holding tray keeps temperature.
19. food serving bar according to the controlled temperature of claim 18, it is characterized in that, described at least one heat-conducting layer is the passage that limits the upward opening of elongated dish receiving compartment, and this dish receiving compartment extends for use in placing described at least one food holding tray in the position of coiling any hope of receiving compartment along this along the length direction of food serving bar.
20. the food serving bar according to the controlled temperature of claim 18 is characterized in that, described at least one heat-conducting layer is that the length direction along described groove extends so that at the elongated substantially parallel plate of described at least one the food holding tray of this groove internal support.
21. the food serving bar according to the controlled temperature of claim 18 it is characterized in that described at least one heat-conducting layer comprises three heat-conducting layers, and described supporting system is included at least one elongated passage component of described these three heat-conducting layers of groove internal support.
22. the food serving bar according to the controlled temperature of claim 21 is characterized in that described at least one passage component comprises three passage components, each this passage component supports a corresponding heat-conducting layer.
23. the food serving bar according to the controlled temperature of claim 18 is characterized in that described supporting system comprises at least two cooperation carriages that are used at described at least one heat-conducting layer of described groove internal support.
24. a temperature control system that is used for such food serving bar, promptly this food serving bar comprises the bin with groove, and described temperature control system comprises:
At least one heat-conducting layer with outer surface and the inner surface that contacts with at least one food holding tray direct heat,
Be used for supporting system at described at least one heat-conducting layer of groove internal support of described bin,
Be used to heat described at least one heat-conducting layer is in the food maintenance temperature of hope with the food that keeps keeping in described at least one food holding tray at least one heating element heater.
25. temperature control system according to claim 24, it is characterized in that, the contact of described direct heat is included in the gap between the described inner surface of the outer surface of described at least one food holding tray and described at least one heat-conducting layer, this gap about 0 inch in about 0.5 inch scope.
26. temperature control system according to claim 24, it is characterized in that, described at least one heat-conducting layer comprises at least two different temperature provinces of extending along the length direction of this heat-conducting layer, wherein the food in the different temperatures zone can remain in different food maintenance temperature, and described at least one heating element heater has the density of variable power with the food in the different temperature province of heating under different maintenance temperature.
27. the temperature control system according to claim 26 is characterized in that, the food of described at least one heating element heater in each described temperature province provides variable heat.
28. temperature control system according to claim 24, it is characterized in that, described at least one heat-conducting layer comprises three heat-conducting layers, each heat-conducting layer contacts with at least one food holding tray direct heat, and described at least one heating element heater comprises three heating element heaters, and each heating element heater is arranged for heat-conducting layer of heating.
29. the temperature control system according to claim 28 is characterized in that, each heating element heater has different resistance, thereby each heat-conducting layer can be to transmitting different heats with described at least one food holding tray of corresponding heat-conducting layer contact.
30. the temperature control system according to claim 29 is characterized in that, described temperature control system has operator interface, and this operator interface makes can regulate the heat that transmits from each heating element heater simultaneously.
31. the temperature control system according to claim 29 is characterized in that, described temperature control system has operator interface, and this operator interface makes the food that can be independent of other heat-conducting layer keep temperature to regulate the heat that transmits from each heating element heater.
32. the temperature control system according to claim 31 is characterized in that, described temperature control system also comprises the special-purpose heater circuit that is used for controlling separately the electric current that flows through each heating element heater.
33. temperature control system according to claim 24, it is characterized in that, described at least one heat-conducting layer comprises at least two temperature provinces of extending along the length direction of this heat-conducting layer, and described temperature control system comprises at least two heating element heaters that are used for the food in described at least two temperature provinces is heated to food maintenance temperature separately.
34. the temperature control system according to claim 33 is characterized in that, described temperature control system also comprises operator interface, and this operator interface makes the food that can regulate each temperature province independently keep temperature.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61926604P | 2004-10-15 | 2004-10-15 | |
| US60/619,266 | 2004-10-15 | ||
| US60/662,685 | 2005-03-17 | ||
| US11/250,778 | 2005-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101072530A true CN101072530A (en) | 2007-11-14 |
Family
ID=38899421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580042057 Pending CN101072530A (en) | 2004-10-15 | 2005-10-14 | A food serving bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101072530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103099472A (en) * | 2011-10-24 | 2013-05-15 | 曼尼托沃食品服务有限公司 | Multiple tier holding display |
| CN103582441A (en) * | 2011-03-30 | 2014-02-12 | 戴尔菲尔德公司 | Food pan guide |
| CN108601472A (en) * | 2016-01-22 | 2018-09-28 | 特励达科学与成像有限责任公司 | Vibrate microchannel kitchen tools |
| CN111065298A (en) * | 2017-09-13 | 2020-04-24 | 夏普株式会社 | Heating cooker |
| CN111650977A (en) * | 2020-06-16 | 2020-09-11 | 四川长虹电器股份有限公司 | Intelligent temperature control dining table top and working method thereof |
-
2005
- 2005-10-14 CN CN 200580042057 patent/CN101072530A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582441A (en) * | 2011-03-30 | 2014-02-12 | 戴尔菲尔德公司 | Food pan guide |
| CN103582441B (en) * | 2011-03-30 | 2016-03-23 | 戴尔菲尔德公司 | Food preservation device |
| CN103099472A (en) * | 2011-10-24 | 2013-05-15 | 曼尼托沃食品服务有限公司 | Multiple tier holding display |
| CN103099472B (en) * | 2011-10-24 | 2016-12-21 | 曼尼托沃食品服务有限公司 | Food display cabinet and forming method thereof |
| CN108601472A (en) * | 2016-01-22 | 2018-09-28 | 特励达科学与成像有限责任公司 | Vibrate microchannel kitchen tools |
| CN111065298A (en) * | 2017-09-13 | 2020-04-24 | 夏普株式会社 | Heating cooker |
| CN111065298B (en) * | 2017-09-13 | 2022-03-04 | 夏普株式会社 | Heating cooker |
| CN111650977A (en) * | 2020-06-16 | 2020-09-11 | 四川长虹电器股份有限公司 | Intelligent temperature control dining table top and working method thereof |
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