WO1998054517A1 - Recycling cooking oven with catalytic converter - Google Patents
Recycling cooking oven with catalytic converter Download PDFInfo
- Publication number
- WO1998054517A1 WO1998054517A1 PCT/US1998/010736 US9810736W WO9854517A1 WO 1998054517 A1 WO1998054517 A1 WO 1998054517A1 US 9810736 W US9810736 W US 9810736W WO 9854517 A1 WO9854517 A1 WO 9854517A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hot air
- stream
- cooking chamber
- cooking
- oven
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6473—Aspects related to microwave heating combined with other heating techniques combined with convection heating
- H05B6/6476—Aspects related to microwave heating combined with other heating techniques combined with convection heating the refrigerating air being used for convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/666—Safety circuits
Definitions
- the present invention relates to a recycling cooking oven, and more particularly to a recycling cooking oven having a catalytic converter.
- U.S. Patent Nos . 5,254,823; 5,434,390; and 5,558,793 describe a recycling cooking oven which provides a substantially closed environment. Recycling cooking ovens typically utilize hot air to supply the heat energy for hot air impingement cooking. In a "hybrid" recycling cooking oven, both hot air and microwaves (from magnetrons) supply the energy for cooking. Such recycling cooking ovens are highly economical as the substantially closed environment means that the heat produced for the purposes of cooking is not needlessly vented to the atmosphere outside of the oven, but is used substantially exclusively for its intended purpose of cooking.
- the hot air which moves over and around the food in the cooking chamber tends to carry with it small food particles which have become detached from the food as well as airborne grease and other particulates which have been created or released by the cooking process.
- the maintenance of clean cooking air is important for both sanitation and high quality food as well as to maximize the operating efficiency of the oven's cooking operation.
- the operating efficiency of the magnetrons used in microwave cooking is particularly sensitive to the cleanliness of the cooking air.
- the recycling oven is capable of cooking a wide variety of foods and is capable of replicating cooking methods ranging from broiling, baking, poaching and frying to roasting, toasting, steaming and grilling, etc.
- a conventional commercial oven (whether recycling or not) utilizes various methods to clear the air for re -use and to reduce the amount of airborne particles which would otherwise be deposited on the internal cooking surfaces of the cooking chamber and/or on the food items being cooked at that time or in subsequent cooking operations.
- the first method is a catch basket at the bottom of the cooking chamber which captures any large particles of food which break off during the cooking operation. The particles are held in the basket by gravity for easy removal during the daily cleaning operation.
- the second method is a metal filter screen through which all of the air which has been used in the cooking operation passes before it can be returned to the cooking chamber in a recycling oven or vented in a non-recycling oven.
- the metal filter screen mechanically removes airborne particles, including larger particles of grease, and deposits these impurities in a catch pan located beneath the filter screen. Both the filter screen and the catch pan can easily be removed from the oven for cleaning during the daily cleaning operation.
- the third method is the daily cleaning operation itself whereby all of the elements of the cooking chamber which come in contact with the air used in the cooking operation are cleaned in a prescribed manual operation.
- Another object is to provide such ah oven wherein there is a minimum of flavor and odor transfer between the different foods in simultaneous or consecutive cooks.
- a further object is to provide such an oven which does not require an overhead hood ventilation system.
- the oven includes both a thermal plenum for supplying a stream of hot air into a cooking chamber and for receiving a stream of hot air from the cooking chamber, and a cooking chamber for supplying a stream of hot air into the thermal plenum and for receiving a stream of hot air from the thermal plenum.
- the thermal plenum maintains a reservoir of hot air therein, and the cooking chamber cooks food therein at least partially with a stream of hot air, such foods adding oxidizable components to the hot air.
- the oven additionally includes means for causing the stream of hot air to circulate in substantially a continuous travel path including the thermal plenum and the cooking chamber, and a catalytic converter disposed in the travel path of the stream of hot air, downstream of the cooking chamber and upstream of the thermal plenum, for flamelessly oxidizing oxidizable components in the hot air of the stream leaving the cooking chamber, thereby both to remove them from the hot air of the stream and to release at least some additional heat energy into the hot air of the stream.
- the thermal plenum maintains the reservoir of hot air at at least 570 F
- the catalytic converter has an inlet temperature of at least 475 F.
- the light-off temperature is preferably 475-550 F.
- the oxidizable components include grease, fats, oils and like hydrocarbons produced by cooking food in the cooking chamber, and the oxidizable components are oxidizable essentially to carbon dioxide and water.
- FIG. 1 is an isometric view of an oven according to the present invention
- FIG. 2 is an isometric view similar to FIG. 1, but without the oven housing
- FIG. 3 is an exploded schematic view of the oven without the oven housing.
- FIG. 4 is a sectional view of the oven taken along the line 4-4 of FIG. 1.
- FIG. 1 therein illustrated is a recycling oven according to the present invention, generally designated by the reference numeral 10.
- the functioning parts of the oven 10 are disposed in a housing 12 supported by feet 14.
- the functioning parts are illustrated in FIG. 2 without the housing and are schematically illustrated in the exploded view of FIG. 3, wherein the arrows represent the travel path of the stream of hot air.
- the oven 10 comprises a thermal plenum generally designated 20, a cooking chamber generally designated 22, and means 24, 26 for causing the stream of hot air to circulate in a substantially continuous travel path (illustrated by the arrows of FIG. 3) including the thermal plenum 20 and cooking chamber 22.
- the circulating means 24, 26 includes a motor-driven blower 24 (the motor not being shown) and ducting 26.
- the thermal plenum 20 is configured and dimensioned to maintain a reservoir of hot air therein of adequate volume such that, once the oven has been warmed-up, the plenum 20 has sufficient hot air therein to immediately commence the process of cooking whatever foods are placed in the cooking chamber
- the thermal plenum 20 contains heating means (not shown) such as electrical heating elements
- a temperature sensor (not shown) is preferably disposed within the thermal plenum 20 to regulate the heating means and ensure that the reservoir of hot air is maintained at an appropriate temperature.
- the thermal plenum 20 preferably maintains the reservoir of hot air at at least 570° F. for reasons which will become apparent hereinafter.
- the plenum 20 supplies a stream of hot air into the cooking chamber 22 via a series of perforations, manifolds, or the like, as necessary to provide hot air impingement cooking of the food within the cooking chamber 22, and receives a stream of hot air from the cooking chamber 22 via the ducting 26, the blower 24, etc .
- the cooking chamber 22 supplies a stream of hot air into the thermal plenum 20 via the ducting 26, blower 24 and the like, and receives a stream of hot air from the thermal plenum 20 via a series of perforations, manifolds 30 or the like.
- the cooking chamber cooks the foods therein (not shown) at least partially with the stream of hot air and, in turn, the foods undergoing the cooking process add oxidizable components to the hot air of the stream.
- the oxidizable components released from or formed by the foods include grease, fats, oils and like hydrocarbons produced by or resulting from the cooking of the foods in the cooking chamber 22.
- the cooking chamber 22 includes an oven housing door 32 which may be opened for the placement of foods within the cooking chamber 22 and the removal of cooked foods therefrom.
- a motor-driven blower 24, preferably of variable speed, causes the stream of hot air to circulate in substantially a continuous travel path including the thermal plenum 20, the cooking chamber 22 and the various elements of ducting 26.
- the ducting 26 includes a filter mechanism 26a, a vertical duct 26b leading from the filter mechanism 26a to the blower 24, and a horizontal duct 26c which receives the hot air from the blower 24 and introduces it into the thermal plenum 20. Just above the filter mechanism 26a the bottom surface of the cooking chamber 22 has a large circular void.
- a donut-shaped catch basket 23 is disposed in the void at the bottom of the cooking chamber 22 and captures any large particles of food which break off during the cooking operation, with gravity holding the large particles of food in the catch basket for easy removal during the daily cleaning operation.
- the cooking disc (not shown) , which supports the food product during cooking, is mounted on the oven housing door 32 for movement therewith and sits atop this catch basket 23 during cooking.
- the filter mechanism 26a includes an inclined metal filter screen 40 which is disposed in a filter housing 42. All of the hot air which has been used in the cooking operation passes through the screen 40. This screen 40 mechanically removes airborne particles, including larger particles of grease, and deposits these in a catch pan 43 located therebelow.
- the catch pan 43 is preferably located just below the interface of the filter housing 42 and a filter door 44 enabling access to the filter housing 42, thereby to capture any seepage from the interface, especially when the door 44 is open.
- the housing door 44 When the housing door 44 is opened, it enables passage of the filter housing 42 (including the screen 40) through the doorway. Both the filter screen 40 and the catch pan 43 are easily removed from the oven 10 during the daily cleaning operation.
- the interior oven surface (below the filter housing 42) is preferably inclined towards the center and provided with a waste tube 46 which transfers any liquid waste accumulating in the center towards a removable pan 48 disposed outside the housing 12 (e.g., slidably attached to the bottom exterior surface of the oven) .
- a hybrid oven according to the present invention may rely as well on microwave cooking.
- the center of the donut-shaped catch basket 23 may be capped off in a manner which permits microwave transmission therethrough.
- the oven 10 of the present invention includes a catalytic conversion unit or converter 50 and a holder
- the catalytic converter 50 is disposed in the travel path of the hot air stream downstream of the mechanical filter 40.
- the holder 52 fits into the rear of filter housing 42 and supports the converter 50, preferably at least partially in vertical duct 26b leading to the blower 24.
- the mechanical filter screen 40 is removed from its housing 42, the converter 50 is pushed upwardly all the way into vertical duct 26b, the filter housing 42 and converter holder 52 are removed through a passageway, and then the converter 50 is pulled down and removed through the same passageway.
- the oxidation catalyst 50 acts on a combustion mixture in much the same way that the spark or flame ignition does, but at a lower temperature and without a flame. Thus, to complete combustion both ignition or "light-off" and sufficient oxygen must be present. However, an important difference between catalytic oxidation and ignition firing is that the former can cause total combustion of very low concentrations of combustible material, which could not sustain combustion in the absence of the catalyst or very high temperatures. The reason is that the combustion reaction actually takes place at the surface of the catalyst .
- the catalytic converter causes the combustion of the airborne grease from cooking to occur between 475°-550°F, which includes the normal operating range of the oven (with the temperature sensor in the thermal plenum 20 set for 570°F and the cook temperature being 520 F) .
- airborne grease will combust at temperatures of 700-800°F, which is significantly higher than the temperature at which an oven typically operates, i.e., 475-550°F.
- the catalyst materials typically function most effectively for this application within a temperature range of 475°F to 550°F. Normal grease and odor-laden air streams emanating from cooking operations are effectively oxidized at a temperature of about 500 °F.
- the conversion of airborne grease to heat energy is approximately 20% for each pass of the circulating hot air stream through the converter 50. Since the volume of air utilized by the oven is re-circulated rapidly and frequently, successive and cumulative conversion allows for a continual and complete clean-up of the air stream.
- catalysts and substrate structures which is useful in the practice of the invention, it is to be understood that catalysts and substrate structures other than those specifically described and illustrated herein can be utilized without departing from the scope of the invention.
- Various catalysts capable of flameless oxidation of greases, oils, etc. and the fumes and odors characteristic thereof can be used, different catalysts having different operating temperature ranges and being most effective for different hydrocarbons at differing sub-ranges within the operating temperature ranges thereof .
- a preferred catalytic system comprises a honey-comb substrate of refractory material which is coated with a platinum-containing catalyst.
- the honey-comb substrate offers a large surface area for coating by the catalyst and, thus, a large effective surface area for contact between the catalyst and the organic materials which are to be oxidized.
- Catalysts suitable for coating the honey-comb substrate include platinum-based catalysts such as tetramine platinum nitrate (NH 3 ) 4 Pt (N0 3 ) , mixtures of chloroplatinic acid, alumina and dextrose, or a solution of tetramine platinum nitrate of the formula (NHX,
- Pt(N0 3 ) 2 Mixtures of a platinum compound with a compound of another additive metal ' , such as palladium, rhodium, ruthenium, iridium, etc., in various ratios, usually with the platinum compound predominating, are also useful in the practice of this invention.
- the catalyst material is deposited on the surfaces of the substrate, usually by dipping of the substrate into a dispersion or solution thereof and then drying or heat treating the coated substrate to fix the catalyst material on the substrate.
- the honey-comb substrate can be formed of Torvex, a ceramic made by the DuPont Corporation, or of similar materials manufactured by Dow Corning, Inc. or Minnesota Mining and Manufacturing, Inc., etc.
- Catalyst-coated granules of a silica/alumina substrate material are also useful as are other well-known refractory metal oxides. Other catalytic methods include the use of pellets, etc.
- An especially preferred catalytic converter formed of a calcined alumina substrate with platinum on a stainless steel support is available under the trade name CAMET OXIDATION CONVERTER (from W.R. Grace & Co . of
- Another especially preferred catalytic converter is made of corrugated ferritic stainless-steel foil arranged in a design that promotes contacting with the hot air stream.
- the foil is coated with an aluminum oxide washcoat containing various metal oxide promoters and small amounts of an active catalyst from the platinum group -- that is, platinum, palladium, or rhodium.
- Poisoning of the catalytic sites due to chemical reactions with the catalyst and the masking of sites may be dealt with in the normal manner, typically using various cleaning or replacement techniques.
- the efficiency of the catalytic conversion process vastly reduces the amount of airborne grease- -and accompanying odor- -which is re-circulated over food products cooked simultaneously or sequentially. This allows the operator to cook a wider variety of food products, each maintaining its distinctive flavor, with a much higher production through-put than conventional cooking methods, which require similar foods to be segregated and cooked separately.
- a delicate puff pastry can be baked in the same or a subsequent cooking sequence as a raw fish fillet.
- cooked pepperoni pizza has a distinctive aroma associated with the pepperoni that can linger in an oven due to the presence of grease in circulating air.
- the present invention not only minimizes heat energy costs and provides superior cooking of a variety of different food products (either simultaneously or sequentially) , but it also reduces the amount of manual labor required in the daily cleaning operation.
- the catalytic combustion process removes a large amount of airborne grease (and converts it to heat energy) so that it is not deposited on the surfaces of the cooking chamber and the mechanical filters. Since grease is the most insidious foreign element produced in the cooking process, its removal substantially reduces the time (and cost) required for cleaning the oven by hand in the daily maintenance procedures.
- the present invention greatly reduces the amount of airborne grease which is discharged into the air in a restaurant kitchen, it eliminates the need for an overhead hood ventilation system and minimizes the noticeable and often unpleasant airborne grease odor wafting to the customers, especially in "open kitchen" configurations where customer traffic comes into direct contact with the cooking area .
- the present invention provides a recycling oven which requires the addition of only a minimum of heat energy for continued cooking operation, permits different foods to be cooked in simultaneous or consecutive cooks with only a minimum of flavor and odor transfer between the different foods. Further, the oven does not require an overhead hood ventilation system and minimizes the amount of manual labor required for the daily cleaning operation.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98923793A EP1023559A4 (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
CA002282742A CA2282742C (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
GB0030875A GB2354820B (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
NZ502132A NZ502132A (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
JP11500843A JP2000510568A (en) | 1997-05-27 | 1998-05-27 | Recirculating cooking oven with catalytic converter |
AU76002/98A AU740847B2 (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
GB9921957A GB2337104B (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
HK01106884A HK1038393A1 (en) | 1997-05-27 | 2000-02-28 | Recycling cooking oven with catalytic converter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/863,671 | 1997-05-27 | ||
US08/863,671 US5927265A (en) | 1997-05-27 | 1997-05-27 | Recycling cooking oven with catalytic converter |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998054517A1 true WO1998054517A1 (en) | 1998-12-03 |
Family
ID=25341552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/010736 WO1998054517A1 (en) | 1997-05-27 | 1998-05-27 | Recycling cooking oven with catalytic converter |
Country Status (10)
Country | Link |
---|---|
US (1) | US5927265A (en) |
EP (1) | EP1023559A4 (en) |
JP (1) | JP2000510568A (en) |
CN (1) | CN1147680C (en) |
AU (1) | AU740847B2 (en) |
CA (1) | CA2282742C (en) |
GB (1) | GB2337104B (en) |
HK (1) | HK1038393A1 (en) |
NZ (1) | NZ502132A (en) |
WO (1) | WO1998054517A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2341677B (en) * | 1999-11-20 | 2000-12-27 | Merrychef Ltd | Ovens with catalytic converters |
EP1224425A1 (en) * | 1999-10-29 | 2002-07-24 | TurboChef Technologies, Inc. | Vented recycling oven with separate catalytic converter |
US7308852B2 (en) | 2001-12-28 | 2007-12-18 | Sharp Kabushiki Kaisha | Heating cooking device |
WO2015082757A1 (en) | 2013-12-05 | 2015-06-11 | R-Menu Oy | Oven for heating and frying food |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7092988B1 (en) | 1997-05-27 | 2006-08-15 | Jeffrey Bogatin | Rapid cooking oven with broadband communication capability to increase ease of use |
JP2002516978A (en) * | 1998-05-23 | 2002-06-11 | エナシスト、ディヴェラップマント、センタ、エル、エル、シー | High heat transfer convection oven for fat processing and smoke reduction |
US6376817B1 (en) | 1998-10-09 | 2002-04-23 | Turbochef Technologies, Inc. | Compact quick-cooking oven |
US6472640B2 (en) | 1999-09-13 | 2002-10-29 | Maytag Corporation | Preheat system for convection cooking appliance |
US6603102B2 (en) | 1999-09-13 | 2003-08-05 | Maytag Corporation | Pressure monitoring arrangement for heating system of a convection cooking appliance |
US8224892B2 (en) | 2000-04-28 | 2012-07-17 | Turbochef Technologies, Inc. | Rapid cooking oven with broadband communication capability to increase ease of use |
US6723961B2 (en) | 2000-08-29 | 2004-04-20 | Maytag Corporation | Self-cleaning system for convection cooking appliance |
US6872919B2 (en) * | 2000-08-29 | 2005-03-29 | Maytag Corporation | Multi-stage catalyst for a cooking appliance |
US6592364B2 (en) | 2001-11-30 | 2003-07-15 | David Zapata | Apparatus, method and system for independently controlling airflow in a conveyor oven |
US9351495B2 (en) * | 2002-07-05 | 2016-05-31 | Turbochef Technologies, Inc. | Air fryer |
US8006685B2 (en) * | 2002-07-05 | 2011-08-30 | Turbochef Technologies, Inc. | Re-circulating oven with gas clean-up |
BRPI0309916B1 (en) | 2002-07-05 | 2018-06-12 | Turbochef Technologies, Inc. | SPEED COOKING OVEN |
US6730881B1 (en) | 2002-12-13 | 2004-05-04 | Maytag Corporation | Cooking appliance having accelerated cooking system |
US8011293B2 (en) * | 2003-07-07 | 2011-09-06 | Turbochef Technologies, Inc. | Speed cooking oven with sloped oven floor and reversing gas flow |
US7886658B2 (en) * | 2003-07-07 | 2011-02-15 | Turbochef Technologies, Inc. | Speed cooking oven with improved radiant mode |
US8035062B2 (en) * | 2003-07-07 | 2011-10-11 | Turbochef Technologies, Inc. | Combination speed cooking oven |
US8658953B2 (en) * | 2003-07-07 | 2014-02-25 | Turbochef Technologies, Inc. | Antenna cover for microwave ovens |
US7946224B2 (en) * | 2003-07-07 | 2011-05-24 | Turbochef Technologies, Inc. | Griddle |
US20080105249A1 (en) * | 2003-07-07 | 2008-05-08 | Turbochef Technologies, Inc. | Speed cooking oven with radiant mode |
US20050056946A1 (en) * | 2003-09-16 | 2005-03-17 | Cookson Electronics, Inc. | Electrical circuit assembly with improved shock resistance |
EP1676465B1 (en) * | 2003-10-21 | 2010-09-29 | TurboChef Technologies, Inc. | Speed cooking oven with slotted microwave antenna |
MXPA06010098A (en) * | 2004-03-05 | 2007-04-25 | Turbochef Tech Inc | Conveyor oven. |
US7235763B2 (en) * | 2004-04-08 | 2007-06-26 | Aga Foodservice Group | Cooking appliance including combination heating system |
CA2807937C (en) | 2004-12-14 | 2015-09-08 | Enodis Corporation | Double enclosure impingement/convection/microwave oven and method |
US20060283441A1 (en) * | 2005-06-16 | 2006-12-21 | Ming-Tsung Lee | Oven with filter for filtering oil smoke |
US8653482B2 (en) * | 2006-02-21 | 2014-02-18 | Goji Limited | RF controlled freezing |
WO2008102334A1 (en) | 2007-02-21 | 2008-08-28 | Rf Dynamics Ltd. | Rf controlled freezing |
US10674570B2 (en) | 2006-02-21 | 2020-06-02 | Goji Limited | System and method for applying electromagnetic energy |
EP3585135A1 (en) | 2006-02-21 | 2019-12-25 | Goji Limited | Electromagnetic heating |
US8839527B2 (en) * | 2006-02-21 | 2014-09-23 | Goji Limited | Drying apparatus and methods and accessories for use therewith |
ES2533575T3 (en) * | 2006-07-10 | 2015-04-13 | Goji Limited | Method and system for multifrequency microwave heating |
US8026463B2 (en) * | 2007-05-15 | 2011-09-27 | Appliance Scientific, Inc. | High-speed cooking oven with optimized cooking efficiency |
US7435931B1 (en) | 2007-05-15 | 2008-10-14 | Appliance Scientific, Inc. | High-speed cooking oven with optimized cooking efficiency |
US8129665B2 (en) * | 2007-05-15 | 2012-03-06 | Appliance Scientific, Inc. | Apparatus and method for heating or cooling an object using a fluid |
US8134102B2 (en) * | 2007-05-15 | 2012-03-13 | Appliance Scientific, Inc. | High-speed cooking oven with cooking support |
US8455797B2 (en) * | 2007-05-15 | 2013-06-04 | Appliance Scientific, Inc. | High-speed cooking oven with optimized cooking efficiency |
US8022341B2 (en) | 2007-05-15 | 2011-09-20 | Appliance Scientific, Inc. | High-speed cooking oven with optimized cooking efficiency |
IL184672A (en) | 2007-07-17 | 2012-10-31 | Eran Ben-Shmuel | Apparatus and method for concentrating electromagnetic energy on a remotely-located object |
US9131543B2 (en) | 2007-08-30 | 2015-09-08 | Goji Limited | Dynamic impedance matching in RF resonator cavity |
DE112008002708B4 (en) * | 2007-10-09 | 2017-09-28 | Acp, Inc. | Air circulation for a cooking appliance with a combination heating system |
US9006619B2 (en) * | 2007-10-09 | 2015-04-14 | Acp, Inc. | Cooking appliance including combination heating system |
WO2010052724A2 (en) | 2008-11-10 | 2010-05-14 | Rf Dynamics Ltd. | Device and method for heating using rf energy |
CN102598851B (en) | 2009-11-10 | 2015-02-11 | 高知有限公司 | Device and method for heating using RF energy |
KR20130113313A (en) | 2010-05-03 | 2013-10-15 | 고지 엘티디. | Loss profile analysis |
US8993945B2 (en) | 2010-05-04 | 2015-03-31 | Appliance Scientific, Inc. | Oven circulating heated air |
WO2011140503A1 (en) | 2010-05-06 | 2011-11-10 | Appliance Scientific, Inc. | A plurality of accelerated cooking ovens with master-slave power assembly |
US9326639B2 (en) | 2011-03-31 | 2016-05-03 | Ovention, Inc. | Oven having a rotating door |
US9480364B2 (en) | 2011-03-31 | 2016-11-01 | Ovention, Inc. | Oven having an H-shaped rotating door |
US9683747B2 (en) | 2011-12-16 | 2017-06-20 | Alto-Shaam, Inc. | Combination oven with catalytic converter |
KR200474296Y1 (en) | 2013-08-06 | 2014-09-04 | 청송기계(주) | Casting product for dust collecting booth |
CA2926029C (en) * | 2013-10-03 | 2021-06-22 | Ovention, Inc. | Oven having a rotating door |
WO2015189788A1 (en) * | 2014-06-10 | 2015-12-17 | Duke Manufacturing Co. | Oven for heating food |
US10337745B2 (en) | 2015-06-08 | 2019-07-02 | Alto-Shaam, Inc. | Convection oven |
US9677774B2 (en) | 2015-06-08 | 2017-06-13 | Alto-Shaam, Inc. | Multi-zone oven with variable cavity sizes |
US9879865B2 (en) | 2015-06-08 | 2018-01-30 | Alto-Shaam, Inc. | Cooking oven |
US10088172B2 (en) | 2016-07-29 | 2018-10-02 | Alto-Shaam, Inc. | Oven using structured air |
US10890336B2 (en) | 2015-06-08 | 2021-01-12 | Alto-Shaam, Inc. | Thermal management system for multizone oven |
CA3220275A1 (en) * | 2021-06-11 | 2022-12-15 | Rehm Brands, Inc. | Oven with heat management system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2658742A (en) * | 1950-01-09 | 1953-11-10 | Harold R Suter | Catalytic fume incineration |
US2795054A (en) * | 1954-10-07 | 1957-06-11 | Oxy Catalyst Inc | Method and apparatus for heat recovery from drying oven effluents |
US3364912A (en) * | 1966-09-22 | 1968-01-23 | Gen Electric | Self-cleaning gas oven |
US3785778A (en) * | 1971-03-23 | 1974-01-15 | Smokontrol Corp | Smoke eliminating device |
DE2640684A1 (en) * | 1975-09-11 | 1977-03-17 | Matsushita Electric Ind Co Ltd | COOKING AND ROASTING APPARATUS WITH CLEANING EQUIPMENT |
JPS5644536A (en) * | 1979-09-20 | 1981-04-23 | Matsushita Electric Ind Co Ltd | Heating apparatus |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA927460A (en) | 1970-05-05 | 1973-05-29 | Prototech Company, A Division Of Bolt Beranek And Newman Inc. | Electric cooking oven with catalytic combustion unit |
US3828760A (en) * | 1973-05-23 | 1974-08-13 | Lca Corp | Oven |
US4138220A (en) * | 1978-02-13 | 1979-02-06 | Colonial Metals, Inc. | Apparatus for catalytic oxidation of grease and fats in low temperature fumes |
US4494525A (en) * | 1980-04-02 | 1985-01-22 | Corning Glass Works | Stove with catalytic converter |
US4437451A (en) * | 1981-08-17 | 1984-03-20 | Atlanta Stove Works, Inc. | Stove with catalytic combustor and bypass |
DK153696C (en) * | 1982-03-03 | 1988-12-27 | Lytzen Ing Ks | FILTER SEAL FOR AN AIR-SEATED STERILIZATION OVEN |
US4460332A (en) * | 1982-08-27 | 1984-07-17 | General Signal Corporation | Temperature controlled oven with internal filter |
JPH0331242Y2 (en) * | 1985-03-15 | 1991-07-02 | ||
DE3636622C2 (en) * | 1986-10-28 | 1994-05-05 | Kueppersbusch | Baking or roasting oven with a fan heater and a catalyst |
JPH02302527A (en) * | 1989-05-18 | 1990-12-14 | Matsushita Electric Ind Co Ltd | Electric oven |
US5166487A (en) * | 1989-12-15 | 1992-11-24 | Tecogen, Inc. | Cooking oven with convection and microwave heating |
US5434390A (en) | 1991-09-17 | 1995-07-18 | Turbochef, Inc. | Quick-cookig oven |
US5254823A (en) * | 1991-09-17 | 1993-10-19 | Turbochef Inc. | Quick-cooking oven |
DE4139904A1 (en) | 1991-12-04 | 1993-06-09 | Kueppersbusch Ag, 4650 Gelsenkirchen, De | Catalytic assembly for fan assisted baking oven - has porous mesh of wire or ceramic coated with catalyst giving free flow of circulating air and large surface area. |
-
1997
- 1997-05-27 US US08/863,671 patent/US5927265A/en not_active Expired - Lifetime
-
1998
- 1998-05-27 CA CA002282742A patent/CA2282742C/en not_active Expired - Fee Related
- 1998-05-27 WO PCT/US1998/010736 patent/WO1998054517A1/en active IP Right Grant
- 1998-05-27 AU AU76002/98A patent/AU740847B2/en not_active Ceased
- 1998-05-27 JP JP11500843A patent/JP2000510568A/en active Pending
- 1998-05-27 EP EP98923793A patent/EP1023559A4/en not_active Withdrawn
- 1998-05-27 CN CNB988054191A patent/CN1147680C/en not_active Expired - Fee Related
- 1998-05-27 GB GB9921957A patent/GB2337104B/en not_active Expired - Lifetime
- 1998-05-27 NZ NZ502132A patent/NZ502132A/en not_active IP Right Cessation
-
2000
- 2000-02-28 HK HK01106884A patent/HK1038393A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2658742A (en) * | 1950-01-09 | 1953-11-10 | Harold R Suter | Catalytic fume incineration |
US2795054A (en) * | 1954-10-07 | 1957-06-11 | Oxy Catalyst Inc | Method and apparatus for heat recovery from drying oven effluents |
US3364912A (en) * | 1966-09-22 | 1968-01-23 | Gen Electric | Self-cleaning gas oven |
US3785778A (en) * | 1971-03-23 | 1974-01-15 | Smokontrol Corp | Smoke eliminating device |
DE2640684A1 (en) * | 1975-09-11 | 1977-03-17 | Matsushita Electric Ind Co Ltd | COOKING AND ROASTING APPARATUS WITH CLEANING EQUIPMENT |
JPS5644536A (en) * | 1979-09-20 | 1981-04-23 | Matsushita Electric Ind Co Ltd | Heating apparatus |
Non-Patent Citations (1)
Title |
---|
See also references of EP1023559A1 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1224425A1 (en) * | 1999-10-29 | 2002-07-24 | TurboChef Technologies, Inc. | Vented recycling oven with separate catalytic converter |
EP1224425A4 (en) * | 1999-10-29 | 2007-10-31 | Turbochef Tech Inc | Vented recycling oven with separate catalytic converter |
GB2341677B (en) * | 1999-11-20 | 2000-12-27 | Merrychef Ltd | Ovens with catalytic converters |
US6712063B1 (en) | 1999-11-20 | 2004-03-30 | Merrychef Limited | Ovens with catalytic converters |
US7308852B2 (en) | 2001-12-28 | 2007-12-18 | Sharp Kabushiki Kaisha | Heating cooking device |
WO2015082757A1 (en) | 2013-12-05 | 2015-06-11 | R-Menu Oy | Oven for heating and frying food |
US10383182B2 (en) | 2013-12-05 | 2019-08-13 | R-Menu Oy | Oven for heating and frying food |
Also Published As
Publication number | Publication date |
---|---|
EP1023559A4 (en) | 2008-04-16 |
GB9921957D0 (en) | 1999-11-17 |
CA2282742C (en) | 2004-03-30 |
GB2337104B (en) | 2001-03-07 |
NZ502132A (en) | 2001-01-26 |
CN1257571A (en) | 2000-06-21 |
HK1038393A1 (en) | 2002-03-15 |
CN1147680C (en) | 2004-04-28 |
EP1023559A1 (en) | 2000-08-02 |
AU740847B2 (en) | 2001-11-15 |
AU7600298A (en) | 1998-12-30 |
GB2337104A (en) | 1999-11-10 |
CA2282742A1 (en) | 1998-12-03 |
JP2000510568A (en) | 2000-08-15 |
US5927265A (en) | 1999-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5927265A (en) | Recycling cooking oven with catalytic converter | |
CA2388556C (en) | Vented recycling oven with separate catalytic converter | |
US9157639B2 (en) | Cooking oven comprising exhaust gas purification assembly | |
US4113439A (en) | Cooking apparatus employing a purging device | |
US5622100A (en) | Catalytic assembly for cooking smoke abatement | |
US20090050129A1 (en) | Catalytic converter unit and method for treating cooking emissions | |
JP2673090B2 (en) | Filter device and method for flame prevention and contaminant adsorption in reducing exhaust contact of meat grill | |
US2933080A (en) | Cooking apparatus | |
GB2354820A (en) | Recycling cooking oven with catalytic converter | |
JPS6187512A (en) | Cooker | |
JP3265917B2 (en) | Fish roaster | |
MXPA99008261A (en) | Recycling cooking oven with catalytic converter | |
CN101310658A (en) | Barbecue stove | |
CN112617625B (en) | Cooking utensil and cooking utensil cleaning method | |
JPH0559114U (en) | Heating cooker | |
JP3317119B2 (en) | Fish roaster | |
KR200255434Y1 (en) | Roaster by using a catalyst burner | |
JP3509739B2 (en) | Cooking device | |
JPH05154059A (en) | Thermal cooker | |
JPH0722557B2 (en) | Roasting machine | |
JPH04203811A (en) | Heating and cooking device | |
JPH01244723A (en) | Baking device employing far infrared radiation | |
JPS63223435A (en) | Grill | |
JPS54134074A (en) | Waste gas cleaner | |
JPH0910118A (en) | Environmental purifier for meat grill |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 98805419.1 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1998923793 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2282742 Country of ref document: CA Ref document number: 2282742 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1999/008261 Country of ref document: MX |
|
ENP | Entry into the national phase |
Ref document number: 9921957 Country of ref document: GB Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 1999 500843 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 76002/98 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 502132 Country of ref document: NZ |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 1998923793 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 76002/98 Country of ref document: AU |