Domestic Patents (Class 126/273R)
  • Patent number: 6166353
    Abstract: A free-standing warming appliance includes an outer enclosure and an inner liner which cooperate together to form a heating chamber. A warmer drawer forming a receptacle for precooked food stuffs is selectively inserted into and withdrawn out of the heating chamber. A heating element is secured to the inner liner within the heating chamber to warm the food stuffs within the warmer drawer receptacle. A control panel has an indicator light and infinite switch for controlling the heating element. The control panel is located within the enclosure and covered by a front panel of the warmer drawer so that access to the control components of the control panel is provided only when the warmer drawer is withdrawn from the heating chamber. Oven support members are secured to the outer enclosure to support a cooking appliance, such as a built-in oven, above the free-standing warming appliance. The cooking appliance rests directly on the oven support members of the warming appliance.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: December 26, 2000
    Assignee: White Consolidated Industries, Inc.
    Inventors: Fran.cedilla.ois Senneville, Serge Laprade, Gilbert Archambault, Stephane Labadens
  • Patent number: 6098613
    Abstract: A venting system for a gas oven of a cooking range that also has a cooktop portion. The venting system includes a flat duct above the oven on each side that communicates with an elongated opening in the top of the oven on that side and the duct conducts the gases of combustion from the oven upwardly to the lateral edges of the cooktop. A vent manifold is mounted on the top along each lateral edge of the cooktop and communicates with the duct on that side to distribute the exhaust gases forwardly and rearwardly along both lateral sides of the cooktop, whereby normal operation of the cooktop gas burners is not adversely affected, no hot spots of exhaust gases from the oven are created, and the working depth of the cooktop is maximized.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: August 8, 2000
    Assignee: Distinctive Appliances, Inc.
    Inventor: Wouter J. Wiersma
  • Patent number: 6070572
    Abstract: A fireplace for food cooking having a planar member adapted to receive coals dispersed thereon and having two sides extending perpendicular therefrom on opposite sides thereof and a back extending perpendicular therefrom and between the two sides. A fireplace hood is supported on the two sides and the back. The fireplace hood has a duct extending upwardly therefrom. The duct is adapted to allow smoke to discharge from the hood. A baffle plate wall has its ends affixed to the two sides and a back side spaced from the back so as to define a hollow space therewith. The baffle plate wall is positioned between the planar member and the fireplace hood so as to define a combustion chamber and a cooking chamber. The hollow space has an upper opening and a lower opening. The lower opening defining an access mouth adapted to draw the coals in the combustion chamber.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: June 6, 2000
    Assignee: Casagarden S.R.L.
    Inventor: Isidoro Casagrande
  • Patent number: 6054227
    Abstract: An appliance is rendered self-cleaning of accumulated organic contaminants on one or more surfaces of the appliance, by coating such surfaces of the appliance with a photocatalytically-activated self-cleaning coating. Upon exposing such coated surfaces to radiation of the appropriate wavelength, for a sufficient interval of time, at least a portion of the organic contaminants present on the photocatalytically-activated self-cleaning coating are removed. The coated surface is thereby cleaned without the need of manual effort or high temperatures. The radiation is generally actinic radiation, and more particularly includes ultraviolet radiation.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: April 25, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Charles B. Greenberg, Richard A. Heilman
  • Patent number: 6050177
    Abstract: A charcoal, gas or electric-fired, fuel-isolated cooker comprising: an outer box separated by rigid insulation from an inner box, a multi-level cooking grill with a detachable grease catchpan, a heat chamber to isolate food from fuel source and to provide an additional hot surface for grilling items such as bread, removable cooking spikes, an optional flavor chip box, insulated handles, magnetized utensil hooks, a magnetically secured door, solid fuel, gas manifold or electric heating element holders, and an extendable vent pipe for use with solid fuel(charcoal briquettes) or gas combustion options.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: April 18, 2000
    Inventor: O. L. Lassig, Jr.
  • Patent number: 6041769
    Abstract: A portable brick oven is made with a sealed brick lining for the back, opposing side and top walls with a door mounted in the front and bottom bricks defining the cooking chamber. The bottom bricks are not sealed and are aligned to define a flat baking surface and these bricks are located so that the edges of the baking surface are spaced from the back and opposing side walls and the individual bricks are not sealed so that the flame of the burner is capable of flowing between bricks. This arrangement provides, radiant, convective and conduction heating. The brick oven is modular constructed and fits into a chassis mounted on wheels. The door is uniquely hinged and clasped to allow for the ease of access into and out of the brick oven.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: March 28, 2000
    Inventors: Joseph A. Llodra, Jr., Henry A. Tinari
  • Patent number: 5986251
    Abstract: A microwave oven includes a cavity formed by a plurality of plates with inner surfaces thereof forming a cooking chamber, outer surfaces of the plates forming a casing of the microwave oven, a shielding plate forming a machine chamber underneath the cavity to provide therein a magnetron and a high voltage transformer, and a door attached to a side surface in the cavity and opening/shielding the cooking chamber to/from an exterior thereof. The microwave oven minimizes the size while maximizing the capacity of the cooking chamber, thereby decreasing the required plate number and production cost.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: November 16, 1999
    Assignee: LG Electronics, Inc.
    Inventors: Jong-Soo Kang, Dong-Wan Seo
  • Patent number: 5916353
    Abstract: An oven is provided with structure which maintains a door, adapted to extend across and seal against an open frontal portion of a heating cavity of the oven, slightly ajar from a fully closed position so as to just break a seal between the door and the oven cavity in order to enable moisture to escape the oven cavity when utilizing the oven for dehydrating food products. For this purpose, the oven incorporates a spacer element that is movable between a de-activated position, wherein the oven can be used in a conventional manner, and an activated position for use in a drying mode of operation. In a preferred embodiment of the invention, a pivotally mounted spacer element is positioned between the door and a cabinet portion of the oven for movement between the de-activated and activated positions. In this preferred embodiment, the spacer element is automatically movable from the activated to the de-activated position due to gravity upon the opening of the door.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: June 29, 1999
    Assignee: Maytag Corporation
    Inventors: Perry A. Bennett, Kenneth E. Sauter
  • Patent number: 5878738
    Abstract: A device for the internal protection of domestic ovens comprised of a folding box. The box (3) has four walls, that is a bottom wall, two side walls (5 and 6) and the rear wall (7), and a non-spill flange (8) which forms the lower part of the front wall. Preferably the invention applies to electric household appliances.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: March 9, 1999
    Inventor: Christian Poirier
  • Patent number: 5818017
    Abstract: An improved microwave oven main body structure capable of more easily assembling an outer plate and an inner plate of the main body by providing a support member to the outer plate, so that the support member is engaged with the outer plate of the main body, which includes an outer plate having a bottom wall, a front wall, and a rear wall; a support member formed on the bottom of the outer plate; and a front- and rear-portion-opened inner plate engaged to the interior of the outer plate and having an outwardly extended side wall; wherein the lower surface of a flange formed at the lower portion of the side wall of the inner plate which is downwardly extended contacts with the upper surface of the bottom of the outer plate.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: October 6, 1998
    Assignee: LG Electronics Inc.
    Inventors: Jin Hae Ye, Jong Wook Lee
  • Patent number: 5813393
    Abstract: The invention relates to a convection oven for processing food products, preferably, an oven (1) for baking. This is provided with heat-generating devices (4).According to the invention, the heat-generating device is a catalytic burner (4) that creates at least the main part of the heat, whereby higher efficiency is achieved, less space is needed, controllability is greater, and the process is more environmentally friendly.The invention also relates to a method for generating oven heat by means of catalytic combustion.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: September 29, 1998
    Assignee: Sveba-Dahlen AB
    Inventors: Jonas Persson, Lennart Larsson
  • Patent number: 5807092
    Abstract: A gas cylinder joined to a gas appliance. Based on the knowledge that a resonance frequency of cassette type gas cylinder does not vary with a residual quantity of gas therein a transmitter and a receiver are placed in positions opposed to a weld zone of the trunk portion of the gas cylinder and which permits an output voltage of the receiver with respect to a residual quantity of the gas to be detected at a specific resonance frequency of the gas cylinder. The resonance frequency is not lower than a predetermined level, the residual quantity of a liquefied gas in the cylinder being detected by transmitting the specific resonance frequency signal from the transmitter and detecting a reception output of not lower than a predetermined level by the receiver. This enables a residual quantity of the gas in the liquefied gas containing cassette type gas cylinder to be detected reliably from the outside.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: September 15, 1998
    Assignee: Tokai Corporation
    Inventors: Hideo Mifune, Yasuaki Nakamura
  • Patent number: 5738081
    Abstract: A self-cleaning oven with improved venting system includes a bottom oven portion, a top oven portion, a back wall and a front member; the top oven portion and the bottom oven portion are separated by an inclined screen wall which is associated with the back wall and with the front member.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: April 14, 1998
    Assignee: Fulgor S.P.A.
    Inventor: Orio Puricelli
  • Patent number: 5727539
    Abstract: A convection oven is described that provides a more desirable cooking condition. The convection oven includes a cooking cavity having sidewalls, a ceiling and a floor and a combustion chamber below the cooking cavity for heating combustion gases to be supplied to the cooking cavity. A blower fan within the cooking cavity circulates air inside the cavity. As part of the airflow path from combustion chamber to the blower fan is an intermediate flow chamber disposed between the cooking cavity and the combustion chamber. By causing the combustion gases to flow through the intermediate flow chamber, a more uniform heat distribution of the combustion gases is achieved. In addition, some heat is transferred from the combustion gases to the cooking cavity floor while the combustion gases are flowing through the intermediate flow chamber. Because this heat is supplied to the cooking cavity floor rather than to the top or sides of the cooking cavity, a more desirable cooking condition is achieved.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: March 17, 1998
    Assignee: Middle by Marshall, Inc
    Inventor: Robert C. Vroom
  • Patent number: 5706796
    Abstract: An oven structure that includes a housing with an internal refractory surface and two heat diffusion walls with apertures at spaced apart and parallel relationship with respect to each other defining a centrally disposed baking chamber and two combustion chambers. The apertures allow a predetermined amount of heat to pass through to the baking chamber without affecting the object being baked by direct contact with flames or other areas with excessive heat concentration. A uniform temperature is maintained within the baking chamber with the hot gases passing through the apertures to the baking chamber where high pressure is developed but the top with the hottest gases and push the mass of gases with a lower temperature down and into the exhaust system.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: January 13, 1998
    Inventor: Nivardo Blasoni Genero
  • Patent number: 5697360
    Abstract: An oven structure (1) comprises a casing (2) provided with walls (5, 6, 7, 8, 9) defining a cooking chamber (4) open on one side (4A) of said casing (2), and below said casing (2) an element (20) provided with a cavity (19) defined by walls (21, 22, 23, 26) rising from the lower wall (24) of said element (20), said cavity (19) facing the lower wall (8) of said casing (2). At least part (26) of said element (20) is removable to allow connection to a gas heating member (29), said cavity (19) being able at choice either to receive an electrical heating member (60) or become the seat of a hot air stream generated by the gas member (29), the lower wall (8) of said casing (2) being provided with apertures (16) which are preferably closed when the cavity (19) of the lower element (20) contains the electrical heating member (60) and are open when said lower element (20) is connected to the gas heating member (29).
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: December 16, 1997
    Assignee: Whirlpool Europe B.V.
    Inventors: Enzo Cigarini, Alessandro Distaso
  • Patent number: 5601070
    Abstract: A convection oven having an insulated oven chamber bounded by a front access door, a floor, a ceiling, two side walls, and a rear wall. An inlet air passageway, which includes a heating element, delivers heated air to the oven chamber, and an exhaust passageway exhausts air from the oven chamber. A baffle plate spaced from the rear wall divides the oven chamber into a blower compartment and a baking compartment, which are connected by a return air opening in the baffle plate and at least one peripheral opening outwards of the return air opening. A blower fan in the blower compartment draws heated air into the oven chamber, mixes the heated air with air already inside the even chamber, circulates the mixed air throughout the oven chamber, and expels air through the exhaust passageway. To alleviate problems caused by high and low pressure zones created in diagonally opposing corners of the blower compartment by rotation of the blower fan, two pairs of diverter plates are disposed around the blower fan.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: February 11, 1997
    Assignee: Middleby Marshall, Inc.
    Inventors: Thomas C. Hotard, Robert D. Morrison
  • Patent number: 5568803
    Abstract: A gaseous fuel burner assembly for heating a space particularly an oven of a domestic cooking appliance comprises a gaseous fuel burner separated from the space by a baffle plate, and, also separated from the space by the baffle plate, a fan for withdrawing air from the space via an aperture or apertures in the plate and returning that air to the space via an exit or exits adjacent the edge of the plate, the or each aperture being so located that, during its passage from the aperture or apertures to the exit or exits, the air passes close to the burner. The fan may also draw in air from a plenum chamber behind the oven. The burner may be of the duplex variety and may have two independently controllable burner heads.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: October 29, 1996
    Inventor: Geoffrey J. E. Brown
  • Patent number: 5558010
    Abstract: An oven for maintaining the quality of stored, heated food includes sensors for sensing the temperature of water in the oven's water reservoir and for sensing the temperature of air in the oven and a control system to compensate for the loss of heat and moisture when the door is opened by increasing the temperatures of the water and air above the set values for a period of time.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: September 24, 1996
    Assignee: Properties Leasing
    Inventor: Winston L. Shelton
  • Patent number: 5528014
    Abstract: A toy oven has a heating compartment accessible through an aperture in a front wall of a housing of the oven. A door is provided which is manually movable to close off the aperture. IN one embodiment, the door is slidably mounted and in another embodiment it is pivotally mounted. A mechanical interlock engages the door to prevent it from opening if the electrical power switch is on. Another mechanical interlock prevents the door from opening when the heating compartment is at a high temperature. The oven is thus safe to use by children in normal play. A fan may be provided to cool the heating compartment when the power switch is turned off and is thereafter automatically turned off after a predetermined time or when the temperature in the heating compartment falls to a safe level. A timer may also be provided to automatically switch power off after a predetermined time of inactivity.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: June 18, 1996
    Inventors: Harvey Goldberg, David C. K. Kwan, Steven Lebensfeld
  • Patent number: 5501159
    Abstract: In a hydrocarbon release rate controlling method, a first chamber is provided capable of receiving successive batches of feed materials for thermal processing having widely varying energy content, heating is produced in the first chamber to cause pyrolyzing of the feed materials into fluid materials, a second chamber is provided communicating with the first chamber and capable of receiving the fluid materials from the first chamber and communicating the fluid materials to a discharge location, heating is produced in the second chamber to cause oxidizing of the fluid materials into discharge gases reaching the discharge location, a jacketed vessel is provided defining a channel surrounding the first and second chambers containing a flow of coolant fluid through the channel, separate variable flows of primary and secondary air are respectively produced into and through the first and second chambers, the temperatures in the first and second chambers are sensed, the temperature of the coolant in the channel of th
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: March 26, 1996
    Assignee: Bio-Oxidation, Inc.
    Inventors: Paul H. Stevers, Roger D. Eshleman
  • Patent number: 5485816
    Abstract: An oven utilizing charcoal as the source of cooking heat is disclosed, the oven having a thermostatically controlled charcoal ignition means used only to ignite and then reignite the charcoal in response to any temperature drop below a predetermined lower limit.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: January 23, 1996
    Inventors: Verlon F. Cox, Don Chaney
  • Patent number: 5474055
    Abstract: A device for inhibiting an increase in temperature in a gas cooker including a cooker body, a combustion chamber defined in the cooker body and provided with an upper burner and a lower burner both constituting a grille, a manipulation unit disposed at a front portion of the cooker body, and a flue communicated with the combustion chamber, the device comprising a plurality of air intake ports provided between the grille and the manipulation unit, an air passage communicated at one end thereof with the air intake ports and at the other end thereof with the duct, the air passage being disposed above the combustion chamber, an insulating member disposed between the air passage and the combustion chamber, and an exhaust port communicated with an outlet of the combustion chamber and the duct, whereby a natural convection type cooling construction utilizing a heat generated by a combustion carried out in the combustion chamber is obtained.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: December 12, 1995
    Assignee: Tong Yang Magic Corp.
    Inventor: Chang-Su Kang
  • Patent number: 5460157
    Abstract: A convection oven is given a lower profile so that two ovens may be stacked without exceeding a height so that the uppermost of the stacked ovens may be comfortably reached by a relatively short person. Also, the oven requires less floor space for installation and operation. The height of the oven is reduced by placing inshot burners at an inlet to the oven. Heretofore, the burners were placed under the oven, which increased the space which must be provided to enclose the burner, and therefore the overall height of the burner. The height of the oven is reduced by allowing the flue gas flow from front to rear before entering the cooking cavity. Heretofore, the flue gas flowed from under the cooking cavity to the sides and up towards the top of the cooking cavity. From there, it traveled to the top of the cooking cavity before entering the cooking cavity itself.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: October 24, 1995
    Assignee: Southbend, A Middleby Company
    Inventor: Gajanan M. Prabhu
  • Patent number: 5419305
    Abstract: An oven safety door latch has a pair of elongated latch arms pivotably connected to each other and to a base at a point intermediate their length. The arms project beyond the base and have end portions with opposed latching noses. A pawl is rotatably mounted on the base adjacent an end of the arms and has a blocking element engageable with the arms. A spring biases the latch arms and thereby the noses towards each other, and a stop element limits this movement of the noses towards each other. A thermally responsive element is operatively connected to the pawl to rotate it between a first position in which the blocking element is spaced from the arms, and a second position in which the blocking element is engaged with the end portions of the arms to limit their movement and thereby the movement of the noses away from each other to maintain the latch in engagement with the oven door.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: May 30, 1995
    Inventor: Roger T. Hanley
  • Patent number: 5413033
    Abstract: An oven for baking a food product. The oven comprises a stone covered bottom that includes a baking area in which the food product may be baked. A top is connected to the bottom and constructed to form a domed chamber over the baking area. A constant heat source is connected to the bottom to provide a constant heat within the chamber. A first passageway extends through the top and has a size sufficient to pass an unbaked food product into the chamber. A second passageway extends through the top and has a size sufficient to remove a baked food product from the chamber.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: May 9, 1995
    Inventor: Renato S. Riccio
  • Patent number: 5386099
    Abstract: A pyrolytic self-cleaning stove includes at least one wall region defining an oven chamber, a muffle disposed in the at least one wall region, a heating element with additional ambient air heating for operating the muffle, an ambient air blower for ventilating the muffle, a device associated with the muffle for pyrolytic self-cleaning, and a sensor array disposed in the cooking chamber for detecting oven soiling values caused by operation. A pyrolytic self-cleaning method for stoves includes on-line optimization of a definable pyrolysis temperature range up to approximately C.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: January 31, 1995
    Assignee: Bosch-Siemens Hausgeraete GmbH
    Inventor: Uwe Has
  • Patent number: 5372833
    Abstract: A roasting system and method for avoiding contact between food to be roasted and combustion materials, in which a heat exchanger is heated by a heated flow from a combustion chamber and the heated flow exhausts through an exhaust outlet associated with the heat exchanger. To avoid food contact with the heated flow, an intake air flow duct draws in outside air and conveys the drawn-in air past the heat exchanger free of contact with the heated flow or heated material forming the heated flow for heating the drawn-in outside air by induction. A surround chamber surrounding the combustion chamber in heat exchange relationship therewith is connected with the intake air flow after it is heated by the heat exchanger for conveying the heated intake air flow to the surround chamber for heating thereof the surround chamber by heat from the combustion chamber, then the heated air flow is conveyed to a roasting chamber for heating the food.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: December 13, 1994
    Assignee: Petroncini SpA
    Inventor: Stefano Farina
  • Patent number: 5365833
    Abstract: A pizza baking pan includes a wok having a center through hole, a rack having an inside annular flange raised from a recessed center portion thereof and a plurality of vent holes around the border thereof surrounding the recessed center portion for passing heat, a ceramic baking plate supported on the inside annular flange inside the recessed center portion, and a dome cover covered on the rack over the ceramic baking plate and having a transparent lid in the center for viewing the inside of the pan.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: November 22, 1994
    Inventor: Ming-Jing Chen
  • Patent number: 5361749
    Abstract: A convection oven is given a lower profile so that two ovens may be stacked without exceeding a height so that the uppermost of the stacked ovens may be comfortably reached by a relatively short person. Also, the oven requires less floor space for installation and operation. The height of the oven is reduced by placing inshot burners at an inlet to the oven. Heretofore, the burners were placed under the oven, which increased the space which must be provided to enclose the burner, and therefore the overall height of the burner. The height of the oven is reduced by allowing the flue gas flow from front to rear before entering the cooking cavity. Heretofore, the flue gas flowed from under the cooking cavity to the sides and up towards the top of the cooking cavity. From there, it traveled to the top of the cooking cavity before entering the cooking cavity itself. Cool ambient air is blown over oven controls in order to cool them before the air is heated by the burners.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: November 8, 1994
    Assignee: Southbend
    Inventors: Mark Jr. Smith, Gajanan M. Prabhu
  • Patent number: 5353719
    Abstract: An apparatus for controlled processing of materials includes a coolant jacketed vessel defining a first pyrolysis chamber and a second oxidation chamber, first heating elements mounted in the vessel to pyrolyze materials in the first chamber, second heating elements mounted in the vessel to oxidize materials in the second chamber, an induction fan, airflow inlet valves and an air intake proportioning valve connected to the vessel for producing separate variable flows of primary and secondary air into and through the first and second chambers, first sensors mounted on the vessel for sensing the temperatures in the first and second chambers and in the coolant, a second sensor mounted on the vessel for sensing the proportion of a predetermined gas in the discharge gases, and a control system responsive to the temperatures sensed in the first and second chambers and the coolant and to the proportion of the predetermined gas sensed in the discharge gases for controlling the induction fan and air intake proportioni
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: October 11, 1994
    Inventors: Roger D. Eshleman, Paul H. Stevers
  • Patent number: 5315922
    Abstract: To provide for both top and bottom heating of baked goods in a portable table-top baking oven, a bottom part (2, 2') is closed off by a removable cover (3, 3') which is essentially dome-shaped, and made of unglazed heat-resistant stoneware. The space beneath this cover defines a baking space. The cover is formed with introduction openings 4, 4', preferably three or four, uniformly positioned about the lower circumference and open at the bottom. The cover is seated on the bottom part which, in one embodiment, retains fuel-supplied heaters, for example three, positioned circumferentially around the outer circumference of the bottom part, heat being distributed through an apertured heat distribution plate 7 beneath a carrier plate (10) for the goods to be baked, and around the outside through a gap (16) between the carrier plate and the dome-shaped cover and into the baking space of the dome-shaped cover; in another embodiment (FIGS.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: May 31, 1994
    Assignee: Robert Keller AG
    Inventor: Robert Keller
  • Patent number: 5286943
    Abstract: A stove with pyrolytic self-cleaning includes an oven having at least one wall region and an outgoing air path. A heating element is disposed in the at least one wall region for operating the oven. A forced-air and/or convection blower vents the oven. A forced-air and/or convection heater is optionally provided for the oven. A device is provided for pyrolytically self-cleaning the oven. A gas sensor is disposed in the outgoing air path for issuing sensor signals. An evaluation unit for pyrolytic self-cleaning is connected to the gas sensor. The evaluation unit has a logic system adapted to a pyrolysis operation for analyzing the sensor signals. The evaluation unit uses the sensor signals after a typical pyrolysis operating time to determine a minimum pyrolysis temperature and an optimized total pyrolysis time being dictated by a type of soiling.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: February 15, 1994
    Assignee: Bosch-Siemens Hausgeraete
    Inventor: Uwe Has
  • Patent number: 5241947
    Abstract: This disclosure is directed to a simulated wood burning oven which includes a housing having an oven spatially disposed therein to define a heated chamber around the oven. A burner is disposed within the heated chamber below the oven for generating products of combustion to heat the oven to baking temperatures. A secondary burner is disposed within the oven for producing a yellow flame to simulate a wood burning flame. Disposed adjacent to the access opening of the oven is a manifold having orifices through which air is directed under pressure to form a curtain of air across the access opening for retaining the heat within the oven during operation. Temperature regulating dampers are disposed adjacent the sides of the oven for controlling the baking or cooking temperatures within the oven.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: September 7, 1993
    Inventor: Ralph Sandolo
  • Patent number: 5215073
    Abstract: An improved arrangement for insulating the oven liner in a domestic range in which a single batt of insulating material is wrapped around the top, bottom and side walls of the oven liner such that the opposite end portions of the batt overlap each over the entire top wall of the oven liner to provide a double layer of insulation over the top wall and a single layer over the side and bottom walls. The batt is held in place by the oven exhaust vent stack which pierces both overlapping layers. The use of the vent stack for this purpose, together with the reduced thickness of the batt covering the side walls, eliminates the need for bands to secure the batt.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: June 1, 1993
    Assignee: General Electric Company
    Inventor: Arthur C. Wilson
  • Patent number: 5205273
    Abstract: A convection and radiant heated oven has a cooking chamber and an air heating chamber below and spaced from the cooking chamber. Shield means above the heating chamber defines, with the oven bottom, a heat space in which an apertured duct receives heated air from the heating chamber and conducts it to a convection fan where it mixes with air from the cooking chamber and is ducted into the cooking chamber. Heated air is also passed upward from the heat space directly into the cooking chamber.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: April 27, 1993
    Assignee: Viking Range Corporation
    Inventors: Michael W. Sparks, Bob G. Harrell
  • Patent number: 5203315
    Abstract: A gas convection oven having a radiant burner and fuel feeding apparatus which enables the single burner to be operated in either a broil mode or a bake mode. In the broil mode, the radiant burner is operated in conventional manner with the flame being held by an inner screen to heat the outer screen to a radiant luminous temperature. In the bake mode, forced air is injected into the burner by a fan thereby providing a leaner fuel-air mixture with higher velocity. As a result, the flame burns outside the outer screen of the burner with the outer screen serving as a flame holder. Therefore, hot combustion gases as produced while the outer screen remains non-luminous.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: April 20, 1993
    Assignee: Raytheon Company
    Inventors: Lawrence G. Clawson, Edward R. Cook
  • Patent number: 5197378
    Abstract: A pizza screen or pan receiving and holding assembly for use in combination with a pizza baking oven is disclosed. The assembly includes a main frame formed of side and end rails interconnected in a generally rectangular pattern with casters provided at the four corners to position the main frame in the open space beneath the baking sections of pizza baking oven. Cross members extend laterally of the side rails to define an open lattice for receiving pizza baking screens or baking pans. Upright members extend upwardly from the front and rear sides of the main frame. A box support frame of a generally rectangular shape formed of interconnected side and end shaft members is secured to the upright members and is inclined rearwardly downwardly. A plurality of boxes sized to receive different dimensioned pizza screens or pans are removably received on the box support frame. The boxes have opened front ends and closed rear ends.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: March 30, 1993
    Inventor: Guy G. Scalise
  • Patent number: 5193520
    Abstract: A domestic cooker has a plenum chamber positioned to the rear of its oven cavity. Air is pump into the chamber by a fan which draws air around the outside of the cavity. Air exits from the chamber to atmosphere via a duct above the oven cavity having first passed over the cooker control panel to keep the latter at an acceptable temperature. The oven cavity has a door of a composite construction with inner and outer door panels spaced apart by a passageway open at the top and at the bottom of the door. Air from the plenum chamber flows to the passageway via a second duct located beneath the cavity. In another embodiment of the invention the cooker has two oven cavities each with a door of the composite construction, the passageways between the inner and outer panels of each door being supplied with air from a plenum chamber at the rear of the cavities.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: March 16, 1993
    Assignee: Stoves Limited
    Inventors: Benjamin F. Gostelow, Geoffrey J. E. Brown
  • Patent number: 5167003
    Abstract: A food preparation oven includes a cooking chamber (1) in which a device (12) is provided for generating heat waves and for directing them in a suitably concentrated manner onto the surfaces (6, 7, 8, 9, 10,11) of the walls of the chamber (1); the device (12) is removably arranged in the cooking chamber (1) and is mobile therein so as to direct the heat waves onto the entire surface of the walls, the concentrated waves scanning the surfaces (6, 7, 8, 9, 10, 11) but covering only portions of them at any given time, creating only in and around these portions a high temperature which results in the pyrolysis of the impurities which have been deposited on the surfaces (6, 7, 8, 9, 10, 11) during the use of the oven. The heat waves can also be used for food preparation.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: November 24, 1992
    Assignee: Whirlpool International B.V.
    Inventors: Carlo Montanari, Giovanni Franzetti
  • Patent number: 5150803
    Abstract: A lid assembly for attachment to a decanter for varying the overall height of the decanter comprising a mounting sleeve which is attachable to the open upper end of the decanter and a lid dimensioned to be attached to the mounting sleeve. The sleeve includes an opening extending therethrough communicating with the interior of the decanter, and at least one column of vertically aligned, horizontally oriented slots. Each of the slots has a side communicating with the opening through the sleeve. A recess is formed in the sleeve adjacent the column of slots, the recess being in communication with the opening through the sleeve and communicating with each of the slots. The lid is dimensioned to be telescopically received within the opening in the sleeve and be rotatable within the sleeve.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: September 29, 1992
    Assignee: Mr. Coffee, Inc.
    Inventor: Mark Cartellone
  • Patent number: 5107821
    Abstract: An oven in which at least one cooling air blower generates a cooling air current in cooling air ducting in the housing containing an incoming air duct and an exhaust air duct, this current flowing through the space in the oven door between the outer panel of the oven door and an inner panel of the oven door. A more uniform cooling action on the surface of the panel of the oven door is achieved by designing the air ducting to match the temperature distribution on the outermost panel of the oven door with a varying air flow across the width of the door, the greatest volume of air flow occurring in the middle section.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: April 28, 1992
    Assignee: Gaggenau-Werke Haus-und Lufttechnik GmbH
    Inventor: Georg von Blanquet
  • Patent number: 5101805
    Abstract: A gas cooker includes a case defining a cooking chamber therein. A support for a food carrier is provided within the chamber, and a flame type of gas burner is situated at the bottom of the chamber. A heat control mechanism is situated between the burner and the food carrier, which can be adjusted to permit flames of the burner to reach the food carrier for grill-type cooking, or prevent the flames from reaching the food carrier for oven-type cooking.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: April 7, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang Y. Noh
  • Patent number: 5078121
    Abstract: The device adjusts reflecting angles of grill reflectors for a grill burner in a gas oven range. Rotation of a driving means 21 is transmitted through a transmission means 17 to an adjusting means 16 and converted into a linear movement of bearing means 13 in reflecting plate 10A and 10B hingedly mounted on a hinge pin 11, thereby the angle between the plates 10A and 10B is adjusted.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: January 7, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae J. Ha
  • Patent number: 5038747
    Abstract: A gas range having at least one stove top surface burner and an interior cooking chamber with a cooking burner includes a chimney extending above the cooking chamber to an exhaust opening at the rear of the top surface. A porous catalyzer plate fits into the exhaust opening and an afterburner is located in the chimney adjacent to the exhaust opening to partially burn and heat exhaust gases. The hot gases then activate the catalyzer to an optimum temperature for effecting their decomposition.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: August 13, 1991
    Assignees: Paloma Kogyo Kabushiki Kaisha, Toho Gas Co., Ltd.
    Inventors: Mitsuo Tsuchiya, Masafumi Matsubara, Hideo Chikazawa, Kazunori Ueyama
  • Patent number: 5016606
    Abstract: A gas-fired oven is disclosed wherein heated air is delivered to an oven's interior from a gas burner located outside the oven in a way to enhance the convection heating properties and capacity of the oven. This is accomplished by means of a conduit which receives air heated by the external gas burner and internally discharges this heated air into the return air path of a blower used to recirculate hot air within the oven. The internal discharge end of the conduit is located adjacent to the blower's return air path so that the conduit does not obstruct the recirculating air. The external gas burner may be either an atmospheric burner or a power burner. Its gas burner head is axially aligned with the conduit's exterior inlet end and spaced a short distance from this inlet. The spacing between the burner head and the conduit inlet controls the dilution air which is required to regulate the temperature of the hot air according to the oven's function such as heating food.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: May 21, 1991
    Assignee: Gas Research Institute
    Inventors: Robert L. Himmel, Frank E. Parobechek
  • Patent number: 4986253
    Abstract: A baking oven utilizes a vapor chamber for at least three of its six inside alls. A vaporized heat transfer medium is circulated through the walls of the oven to provide a more uniform temperatrure distribution throughout the oven.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: January 22, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Walter B. Bienert, Edward J. Jopson, Richard J. Lanza
  • Patent number: 4901705
    Abstract: A gas heating cooker to be used as a grill or an oven, wherein the blow-off air current of the blowing apparatus blows along the flames of the lower burner to get the hot current to reach far, so that the heating chamber becomes superwide enough to allow a lot of cooking, with the result that the heating operation may be effected with uniform heat distribution in the full face of the heating chamber, and a superior cooking property from even cooking is provided.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: February 20, 1990
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Manabu Takata, Junzo Tanaka, Yoshiharu Shimada, Yoshiteru Kagomoto
  • Patent number: 4888460
    Abstract: In a support structure of an internal compartment of a cooking appliance where the rear side of an internal compartment is fixed to a back plate of an external housing using screws, flanges are provided on a rear plate of the internal compartment and other internal compartment members adjacent to the rear plate are overlaid with each other, and the screws are theadably engaged with the contraction holes formed on both overlaid flanges.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: December 19, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yuichiro Oya
  • Patent number: D412807
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: August 17, 1999
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kensaku Noda, Yasunori Kusachi, Masatoshi Okuda