Abstract: A food cooking oven having a vertically hinged access door 1 provided with an exterior glazing 2, and an inner door 3 arranged on the inner face of said door. The inner door is provided with a hinge 4 along the hinging edge of the access door 1 to the oven housing and is able to be turned with respect to the hinge to a position which is moved away and separated from said access door. The oven also includes a gutter 6 for collecting condensation water and other drippings. The gutter runs along the lower edge of the access door and is provided with a liquid shut-off means 7. A liquid collecting element 11 is arranged so as to protrude from the lower side 10 of the oven cavity opening perimeter, in a position lying underneath said liquid shut-off means, the latter being normally shut when the oven door is open, and adapted to close automatically when the door is being closed.

Abstract: A bracket member for use in mounting a window in a barbecue grill hood is disclosed, the bracket having a channel for receiving an edge of the window and spring clips which grip the window prior to installation and which are bent to engage the grill hood and secure the window and bracket to the grill hood.

Abstract: A cool multi-section oven door for use in an oven is disclosed herein. The present invention provides a plurality of pieces of glass, preferably four, each in parallel spaced relation to each other. The spaces between the pieces of glass provide channels for air flow. To provide forced air flow, a fan is positioned under the cooktop area and the air passes through the air gaps between the individual pieces of glass, thus cooling the oven door by allowing the heat to exit at the top of the door. Additionally, heat radiating fins are located on the hinges of the oven door extend into the air flow to provide further cooling.

Abstract: An oven door having a localized interior surface area exposed to high oven temperature and susceptible to the generation of excessive temperature at an adjacent outside surface area, is provided with a heat collector plate fastened over the localize interior surface area with fastening means in heat transfer relationship with said heat collecting plate and with a heat dissipator attached outside of the oven door remotely from said adjacent outside surface area, for dissipating heat to ambient atmosphere.

Abstract: A gas fireplace comprising a housing adapted to be located in a building. There is a first conduit in the housing to act as an air inlet. In insert is received within the housing. A second conduit in the insert aligns with and is received by the first conduit. The invention permits the construction of a gas fireplace in two stages, a first stage in which the housing is built into the building and a second, subsequent to all building activity, in which the insert is received within the housing.

Abstract: Self-cleaning oven including a cooking compartment, a hinged door and a venting assembly. The venting assembly includes a fan connected to an aspiration duct which is in turn connected to an interspace provided in the door. The fan is also connected to a venting duct arranged parallel to the aspiration duct and has an outlet arranged above the door. The interspace of the door has an inlet for drawing air from the outside, and an outlet connected to the aspiration duct. The fan is adapted to draw air from the outside, through the interspace, and to discharge the air through said outlet of the venting duct. A venting device is provided connecting the cooking compartment to the venting duct and an auxiliary venting duct is provided inside the venting duct, at the venting device. A tray is provided at the end of the auxiliary venting device to prevent moisture from being discharged at the venting duct outlet in the form of water.

Abstract: A new and improved oven door apparatus includes a pair of guide channel assemblies connected to a pair of sidewalls of the oven. Each of the guide channel assemblies includes a straight vertical guide channel portion, a curved, right angled guide channel portion, and a straight horizontal guide channel portion. The straight vertical guide channel portion is connected to an oven sidewall adjacent to a front, open portion of the oven which provides access to the interior of the oven. The straight horizontal guide channel portion is connected to an oven sidewall adjacent to a top portion of the oven. An articulated door assembly includes a plurality of rectangular door panel assemblies and is connected together by articulated connection assemblies, e.g. hinge assemblies. A wheel assembly is positioned adjacent to each corner of each door panel assembly. Wheels ride in the guide channel assemblies. The bottommost of the door panel assemblies includes a handle.

Abstract: In a window for ovens, in particular household baking ovens, with a window structure that consists of several panes (10, 28, 32), at least one of the panes (28) is angled in comparison to the other panes (10, 32). Because of this a lower outer surface temperature results on the outer pane (32) of the multiple pane arrangement turned away from the oven inner chamber (12) with elevated temperature. The frame (16, 34) of the multiple pane arrangement can also have openings (36) on the top and bottom in the area between the outside pane (32) and the center pane (28). In combination with this measure, which permits convection of the outside air through the outer pane intermediate space (arrows 38), an additional reduction of the temperature of the outer pane (32) can be achieved. This air convection can be increased by the fact that the angled center pane (28) converges toward the outer pane (32) at the top.

Abstract: The door of an oven comprises a shell (1) of parallelepipedal shape whose front wall (2) has a large opening having the shape of a parallelogram enclosed by a transparent plate (3). The securement of the transparent plate (3) on the shell (1) is effected by fixation members which are formed by holding tongues (P.sub.1 to P.sub.8) arranged respectively on two opposite sides (9 and 10) of the edge (4) of the opening of the shell, while the transparent plate (3) has two opposite sides (24 and 25) bearing projections (S.sub.1 to S.sub.8) adapted to come into securement, by sliding, respectively beneath the holding tongues (P.sub.1 to P.sub.8). For use in all the doors of household electric ovens.

Abstract: A pellet burning heating device (20) designed to operate at a combustion efficiency of about 90-98% (based on the oxygen-derived combustion efficiency formula), and to emit exhaust gases having a carbon monoxide concentration, by volume, of about 0.04% or less, which device does not incorporate a fan system for introducing combustion air into, or extracting exhaust gases from, the stove. High combustion efficiency and clean burning are accomplished by providing a plurality of apertures (130, 132) in the burn pot (120) of the device having a predetermined size, number, and placement. The heating device (20) also includes an aperture (200) which provides a wash of relatively cool air to the inside surface of the window in order to reduce carbon deposits. A shaker (160) located in the burn pot (120) provides a heat sink which helps to increase the efficiency of the heating device.

Abstract: An electric, gas combined or similiar oven (1) is provided comprising a door (3) provided with a window (4), said window having an outer (5) and an inner surface (6) and a panel (9) interposed therebetween, said panel (9) comprises at least one mobile portion (25, 26) which when moved within the door (3) allows visual access to the interior of the usual cooking chamber (2) of the oven (1), the movement of said portion (25, 26) being controlled from the outside of said oven (1) by a suitable control member (40).

Abstract: A pellet burning heating device (20) designed to operate at a combustion efficiency of about 90-98% (based on the carbon derived combustion efficiency formula), and to emit exhaust gases having a carbon monoxide concentration, by volume, of about 0.04% or less, which device does not incorporate a fan system for introducing combustion air into, or extracting exhaust gases from, the stove. High combustion efficiency and clean burning are accomplished by providing a plurality of apertures (130, 132) in the burn pot (120) of the device having a predetermined size, number, and placement. More specifically, the total area of the apertures in the bottom wall (122) and portions of the sidewall (124) at or below the pellet level (134) in the burn pot is equal to the total area of the apertures in the sidewall positioned above the pellet level.

Abstract: An access window for barbecue grills in which the access window is openable for acces to foods being cooked on the grill. The window includes a frame with a hinge associated therewith, the hinge being received by brackets on the grill hood. A handle is also provided for opening and closing the window.

Abstract: A heat exchanger for use in a fireplace assembly having walls surrounding a fire combustion chamber, an air passage provided therein and a flue assembly for exhausting combustion chamber effluent. The heat exchanger includes a housing adapted to be mounted in the fire combustion chamber and communicating with the air passage. The housing has a first housing wall, a second housing wall and intermediate walls connecting the first and second housing walls. The first housing wall has an opening therein to receive combustion chamber effluent. The second housing wall has an opening for emission of combustion chamber effluent which is adapted for communication with the flue of the fireplace assembly for exhaust of the combustion chamber effluent from the fireplace assembly. Intermediate walls connect the first and second housing walls in a spaced relation.

Abstract: A window unit for an oven door having a pair of rectangular window panels held in spaced parallel relation by a frame. The frame is in the form of a one-piece strip of flexible, bendable material which extends about the periphery of the panels. The frame has clamping sections along the edges of the window panels to clamp the panels together. The clamping sections terminate short of the corners of the panels so that the corners are exposed and not subject to pressure and chipping by the frame. At the corners, the frame has spacers which extend between the panels to hold the panels spaced apart. The clamping sections and spacers are integral parts of the one-piece frame.

Abstract: An oven with double door is disclosed formed of a rigid projecting frame which supports, through guide rods, an inner plate which is urged by springs. Closure is provided by the inner plate which slides with respect to the frame and supports a peripheral seal.

Abstract: A free-standing, thermostatically controlled stove provides positive draft combustion of bio-mass pellets or cereal grains. Particulate bio-fuel is gravity fed from a hopper into a first slower moving auger conveyor which feeds a second faster moving sugar conveyor that communicates with the lower side portion of a combustion container carried in a combustion chamber. A pilot burn is continuously maintained in the combustion container end of the second conveyor. The combustion container has vertically spaced air plena that provide combustion air and input holes to allow recirculation of combustion chamber gases for secondary combustion. The fire chamber exhausts combustion gases through a negative pressure, downdraft type exhausts with a selectively openable valved orifice to allow updraft operation at critical burning periods.

Abstract: A window for a domestic oven having a reduced thermal transmission so that the external glass surface, which can be touched, is maintained at an acceptable temperature. Between the walls of the window there is an evacuated space. Preferably at least the internal surface of the outer wall is coated with a transparent layer of reflecting material. A non-evaporable getter material is contained within the evacuated space.

Abstract: High temperature furnaces are described containing a movable viewing window that is heated so that the work charge can be scanned along the length of the furnace without creating a thermal disturbance. A system is also disclosed for controlling the operation of the furnace based on comparison of viewed images with stored sample images.

Abstract: A window for a domestic oven is described which has a reduced thermal transmission so that the outer glass surface, which can be toughed, is maintained at an acceptable temperature. Between the surface of an outer glass sheet and an inner glass sheet of the window there is a rare gas filled enclosed volume. Preferably at least the inner facing surface of the outer glass sheet is coated with a transparent layer of reflecting material. A non-evaporable getter material is contained within said enclosed volume.

Abstract: A solid fuel burning space heating appliance comprises a combustion chamber including front, side and rear walls, a top and a bottom. An apertured grate arrangement is provided in the combustion chamber for supporting solid fuel. An ash collecting region is located under the grate arrangement, with an air inlet for providing combustion air. A first air outlet in the combustion chamber is located below the grate arrangement, and a second air outlet in the combustion chamber is located above the grate arrangement. An air diverting arrangement is provided for selectively diverting air from the air inlet between the first and second air outlets. A glass cleaning system provides a vertical curtain of air over the interior surface of a glass panel. The glass cleaning system includes an air supply adjacent one side wall, an air reservoir connected to the air supply and a dam defining a tapered outlet slot for providing the curtain of air from the air reservoir.

Abstract: High temperature furnaces are described containing a movable viewing window that is heated so that the work charge can be scanned along the length of the furnace without creating a thermal disturbance. A system is also disclosed for controlling the operation of the furnace based on comparison of viewed images with stored sample images.

Abstract: A semi-frameless door, per se, and in combination with a firebox opening and the like, utilizes a specially configured spacer frame to seal inner and outer glass panes and also, if desired, the firebox opening. Retainer plates affixed only to the outer glass ends and the spacer frame permits the outer pane to be curved with longitudinally extending exposed edges flush with the edge of the spacer frame to create a full glass covering of the opening. The glass size differences and black colored spacer frame create a size illusion and a shadow glow reflection when viewing the fire in the firebox. Inner retainer plates sealing the inner glass to the inside surface of the spacer frame have lip edges which are forced into contact with a fibrous seal disposed in a channel configuration within the opening when the door is latched to insure sealing of the opening should the door hinge ever loosen during extended use.

Abstract: A freestanding wood, gas log or coal burning stove includes a pair of hinged glass or screen doors which are movable to storage compartments within the stove where they are completely concealed from view. In one embodiment, side panels are hinged to the stove frame assembly, and each door is hinged to one of the side panels in such a way that the door can be folded into a storage compartment between the stove frame assembly and the side panel. In another embodiment, fixed side panels define storage compartments between the side panel and the stove frame assembly, and each door slides into one of the storage compartments, In both embodiments, the storage compartment can include openings for circulation and heating of room air.

Abstract: A grill, such as an outdoor charcoal or gas grill includes a conventional bottom portion having a heat generating source and a rack for supporting a food product above the heat generator. The grill includes a cover which serves to enclose an air space above the rack to permit roasting or baking of food products supported on the rack. The cover also includes an opening and a transparent panel is provided for the opening, preferably by an elongate hinge. The hinge is located at the bottom of the panel and the cover also includes an opening mechanism, whereby the upper portion of the panel may be displaced from the cover to create an opening in the vicinity of the top of the cover. The opening of the panel permits grilling or broiling of the food product, and the user of the grill, by observation of the cooking process occurring in the grill through the transparent panel can open and close the panel by desired amounts and at appropriate times to control cooking operations.

Abstract: An oven door includes a peripheral frame, an internal transparent pane adhesively secured to the frame and an external transparent pane releasably mounted on the frame. The frame has lower and upper rims formed with openings for the circulation of air through an interspace between the two panes. A profile member is secured to the upper rim of the frame and has a central handle. The profile member has an internal cavity communicating with the openings of the upper rim and with the interior of the oven chamber. First deflector elements within the internal cavity direct a flow of air from the interior of the oven into the interspace. Second deflector elements within the cavity define venturi-type passages for facilitating the escape of air from the interspace.

Abstract: An instrument for viewing the vent of a chimney while the chimney is working that includes a quartz rod that is mounted in the chimney above the flue entrance thereto. The rod is adapted to transmit light travelling down the chimney to a viewing station outside the chimney wall to provide valuable visual information concerning the condition of the chimney and the burning efficiency of the fire.

Abstract: A heating appliance having which a viewport through which combustion can be viewed incorporating a portion which is reflectorized to reflect some of the radiant heat of the burning fuel in the fire chamber back into the fire chamber to maintain high temperatures in the fire chamber for efficient combustion while reducing the temperature of the outer surface of the viewport and accordingly the likelihood of injury to persons accidentally touching the viewport and the possible damaging effects of thermal exposure and shock. The viewport is reflectorized in the preferred embodiment by a treatment which enhances the reflectivity of the transparent or translucent portion over that of transparent glass.

Abstract: Device for mounting a glass pane on an oven door. The glass pane is situated at some distance from the inside face of the door and is fixed thereon, the inside face of said glass pane cooperating with a joint which surrounds the oven aperture to achieve the closure of the latter. The invention finds an application in the manufacture of ovens.

Abstract: An instrument for viewing the vent of a chimney while the chimney is working that includes a quartz rod that is mounted in the chimney above the flue entrance thereto. The rod is adapted to transmit light travelling down the chimney to a viewing station outside the chimney wall to provide valuable visual information concerning the condition of the chimney and the burning efficiency of the fire.

Abstract: A unique structure of a door for a microwave oven having integrally assembled bent-members comprising: a choke cavity provided with a sectional slit along the external periphery of the door body for the prevention of microwaves from leakage to the outside; a metal contact part held in contact with part of the peripheral edge of the opening of the oven; and a punching portion securely covering the front surface of the opening of the oven.

Abstract: An oven door having an inner panel between the back and front panels. The back and inner panels have aligned window openings. A window unit between the back panel and inner panel has a pair of glass panes aligned with the window openings. A suspended glass pane between the inner panel and front panel is aligned with the window openings. The front panel has a glass pane provided with a viewing area aligned with the window openings, or it may have a window opening aligned with the window openings in the back and inner panels and there may be another suspended glass pane to cover the window opening in the front panel. Fasteners connect the inner panel window unit and suspended glass pane or panes to the back panel.

Abstract: A slidable sight panel for a cooking unit wherein the panel member is slidably positioned in a guide track over an opening in a cover member with one of the panel sections spaced away from the opening and another panel orientated with the opening. One of the panel members is transparent so that when it is orientated with the opening in the grill the contents inside the grill cover can be inspected. The other panel is usually of a nontransparent material and covers the opening when it is not necessary to view the contents of the grill. In this manner, the transparent section is kept clean from the smoke and grease which usually accompany cooking in a barbecue grill unit. A light source is mounted outside the cooking unit for illuminating the interior thereof through a window unit.

Abstract: A door of a microwave oven comprises a frame-like door plate having a central window, upper and lower sashes secured to the door plate, a screen to cover the central window, outer and inner barriers for protecting the screen, and a contact plate to be brought into contact with a peripheral portion of the oven. A door cover made of a heat-resistant material is provided around the contact plate and engageable portions are provided for securing the door cover in its position without utilizing machine screws and the like.

Abstract: A stove for burning wood, coal and other fuels comprised of flammable solids that among other things produce one or more flammable gases when heating or burning. The preferred form of the stove has three modes of operation--a rapid burning mode, a normal or medium burning mode and a banked mode. The user makes a preliminary decision as to whether the stove is to be operated in its normal mode or banked mode. Thereafter, controlled by temperature responsive means, the stove moves itself fully automatically back and forth from the rapid burning mode to whichever one of the other two modes of operation has been preselected by the user.

Abstract: A gasket arrangement for a two-panel door or observation window of a high temperture oven has, preferably, two gaskets disposed one on each side of one panel of the door or window around its periphery so as to provide a seal between the panels and to allow sealing of the door or window against a further member, for example frame, of the oven. A layer of vapor impermeable material extends between the gaskets so as to prevent escape of fumes from the oven. The gaskets are preferably of glass fibre, and the vapor impermeable material a metallic foil.

Abstract: A stove for burning solid fuel such as firewood. a lower level air inlet opening is provided for so-called "primary air," and another air inlet opening is provided at a higher level for so-called "secondary air." The volume of air introduced into the stove from each inlet opening is separately controlled. An air metering means controls the amount of secondary air introduced into the stove through the higher level air inlet opening. The lower level air inlet opening and the air metering means both have a finite number of predetermined, fixed air transmitting conditions and no other air transmitting conditions. The lower level air inlet opening has preferably two predetermined, fixed air transmitting conditions--a maximum and a minimum. The air metering means has at least a predetermined, fixed maximum air transmitting condition and preferably also a predetermined, fixed minimum, transmitting condition. The level at which the two air inlet openings are located is specified.

Abstract: The invention provides a stove for burning a charge of fuel by primary air directed either above or underneath through the firebed. A firebed support is defined by an array of alternating fixed and movable bars, the movable bars having a length greater than their width when viewed endwise and being rotatable between a vertical attitude in which they permit upward passage of air and downward passage of ash through said support and a horizontal attitude in which they permit build up of a layer of ash at the base of the firebed. An air distribution chamber has an inlet for primary air, a first outlet from which primary air passes to a space above the firebed and a second outlet from which primary air passes to a space below the firebed. An air diversion flap is movable between positions in which air is selectively directed through the first and through the second outlet.

Abstract: A novel chimney sentinel is disclosed which facilitates detection of wood stove flue fires. A sight glass is provided which is kept clear during use through a controlled ventilation of the interior surface of the sight glass. The sight glass is easily removed by hand, even during flue operation, to provide fire extinguisher access to the flue interior.

Abstract: A cooking appliance comprising a heating chamber with a window provided on one side. At least one surface of the window is coated with a film of a reflecting metal oxide, such as indium oxide, to such a thickness that food in the heating chamber can be seen through the window.

Abstract: Apparatus for viewing the interior of a working chimney so that smoke patterns and the condition of the chimney walls can be continually monitored without the need of discontinuing the operation of a connected stove. The viewing apparatus is rendered airtight so that a fire extinguisher operably connected thereto can fire dry chemicals directly into the chimney in the event a chimney fire is detected.

Abstract: A wood-burning stove includes side walls joined together in an airtight manner to form a firebox and a heat chamber thereabove. The firebox contains upstanding rails to support wood logs for combustion. Streams of heated air are discharged from a manifold that extends from rail-to-rail outwardly from one terminal end of each rail between opposite side walls of the stove. A plate is adjusted to control the flow of air into the manifold. An access door has openings in a spacer side wall for supplying air as desired to the firebox. The spacer walls of the door support a glass panel at an outwardly-spaced location from a deflector to prevent deposits of creosote and other materials on the glass.

Abstract: A windowed door assembly for a combination microwave and hot air oven having a choke-coupling type seal formed around the periphery of the window opening to suppress the leakage of microwave energy from the area between the main body of the door and the window portion of the door. The window portion is removably connected to the main body of the door in a region of relatively high capacitive impedance to reduce the importance of the mechanical connection in suppressing the leakage of microwave energy from the oven.

Abstract: A self-contained window unit that may be installed in a solid fuel burner or like device. The window unit comprises a safety shield which may consist of a glass pane and/or a safety screen, and a frame surrounding the safety shield. The frame is composed of frame elements fabricated in separate lengths with brackets at the corners of the frame to secure the frame elements together. Preferably there is a cushion element between the safety shield and the frame to minimize the risk of breakage. The unit may be mounted on the fuel burner by hanger brackets on the frame or by threaded studs carried by the brackets.

Abstract: The combination stove has a fire chamber that is partially cylindrical including a side loading door for loading wood or other combustible material such as coke or coal into the fire chamber. The front of the stove may be opened to enable viewing of the wood or coal burning in the stove by means of an arcuate sliding door that is operable to substantially totally close the chamber or open a section of the front thereof for viewing purposes. The sliding door is covered by a window construction including a tempered glass face. The stove is provided with an open base for supporting the chamber in a shroud covering the top and back of the chamber, preferably including blower means associated therewith. Particularly for wood combustion, the chamber is provided with a top draft extending longitudinally of the chamber and has supported therein a grate.

Abstract: In a substantially transparent insulating structure, positionable between a warmer region and a colder region, the improvement comprising an infrared reflecting visible light transmitting coating, applied to a surface of a pane in the structure. The coating reflects a substantial portion of infrared radiation incident thereon, so as to restrict substantial transmission of infrared radiation from the warmer region to the colder region. The reflected infrared radiation heats the surface exposed in use to the warmer region sufficiently to inhibit formation of a visibility-impeding layer thereon, without using electrical energy therefor. The reflected infrared radiation is reradiated into the warmer region, thereby inhibiting reradiation of such reflected infrared radiation into the colder region. The coating further transmits a substantial portion of visible light radiation incident thereon, to enable substantially clear visibility therethrough.

Abstract: A stove for burning solid fuels such as wood, briquettes, peat and the like includes a stove structure having a front and rear and two side walls. The front and rear walls have a width greater than the width of the two sidewalls, and one of the two sidewalls is provided with an access fire door for feeding the solid fuel into the side of the stove.

Abstract: A wood burning stove having a lower main fire box and a vertically offset oven unit. Directly under the cooking surface of the lower firebox is an auxiliary firebox; the air supply inlet has means to selectively direct the incoming air to either firebox so that a small cooking fire can be used alone. The main firebox door has a glass panel and a removable stainless steel plate to reflect heat back to the glass to burn off accumulated deposits thereon.

Abstract: A microwave oven has a cooking chamber; a microwave window in one of the chamber walls; a glass-ceramic plate covering the window; a securing frame affixed to the chamber wall and immobilizing the plate by engaging peripheral portions thereof; a microwave connecting housing adjoining the window externally of the cooking chamber; a microwave generating and guiding device bounding at least in part the space defined by the connecting housing for directing microwave energy into the cooking chamber through the connecting housing and the window; and an electric resistance heater in the cooking chamber. A high-temperature resistant seal is interposed between the securing frame and the plate; the seal is bonded to the chamber wall and the plate. The space defined by the connecting housing is maintained at a pressure which is greater than that prevailing in the cooking chamber.

Abstract: A draft air deflecting device is mountable proximate to a window contained in a firebox and serves as a conduit which directs draft air across the inner surface of the window prior to its supporting combustion of the fuel in the firebox. In this respect, the draft air deflecting device is formed as a box which communicates with draft air holes located in the firebox and which includes a forwardly extending lip serving to define a nozzle for both increasing the velocity and directing the incoming draft air across the firebox window. The incoming draft air is thus utilized to cool and to prevent soot, creosote and other particulates from accumulating on the window.