Abstract: Methods of operating a refrigerator appliance are provided. The refrigerator appliance includes a cabinet defining a food storage chamber with a drawer slidably mounted within the food storage chamber. The refrigerator appliance also includes a sensor operable to detect an atmospheric condition within the food storage chamber of the drawer and a camera assembly positioned and configured for monitoring the drawer. The methods generally include obtaining an image using the camera assembly and analyzing the image to identify a first food item and a second food item in the food storage chamber of the drawer.

Abstract: An indoor smoker includes an exhaust duct and an air handler fluidly coupled with the exhaust duct for urging a flow of smoke from a smoking chamber, through the exhaust duct, and out of a discharge vent. A catalytic converter is positioned within the exhaust duct, the catalytic converter comprising a catalytic element and a catalyst heater, and an air quality monitoring system is operably coupled to the exhaust duct. A controller is configured to measure an air quality of the flow of smoke passing through the exhaust duct using the air quality monitoring system, determine that an emissions control failure has occurred based at least in part on the air quality, and stop the flow of smoke in response to determining that the emissions control failure has occurred.

Abstract: A bracket for a display unit includes a retainer. The retainer includes a front surface and is operable to selectively interface with a display unit. The bracket includes a coupler attached to the front surface of the retainer. The coupler includes a socket having a first receptacle defining a first width and a second receptacle defining a second width different than the first width.

Abstract: Bismuth-based alloys comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 90 to about 97% by weight bismuth and about 3 to about 9% by weight silver. A plug comprising an alloy of bismuth, tin, and antimony; and a plug comprising an alloy of bismuth and silver. A method of using a plug made from a bismuth-based alloy to seal a well, wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Abstract: Methods of operating a refrigerator appliance are provided. The refrigerator appliance includes a cabinet defining a food storage chamber with a drawer slidably mounted within the food storage chamber. The refrigerator appliance also includes a sensor operable to detect an atmospheric condition within the food storage chamber of the drawer and a camera assembly positioned and configured for monitoring the drawer. The methods generally include obtaining an image using the camera assembly and analyzing the image to identify a first food item and a second food item in the food storage chamber of the drawer.

Abstract: An ammonia stripper (32) and method for stripping ammonia from ammonia-containing water is described, comprising an ammonia-containing water inlet (56), a steam inlet (70), and a forced air inlet (82), and an ammonia-containing gas outlet (36) and a wastewater outlet (72). The steam and air contact the ammonia-containing water in counter-flow to release ammonia from the ammonia-containing water. The ammonia stripper further comprises a steam and air mixing duct (200) shaped to create turbulence in the steam and air flow to promote mixing of the steam and air flow prior to contacting the ammonia-containing water. Also described is an ammonia stripper and method comprising a precipitation unit for precipitating solids from the ammonia-containing water prior to the inlet, and an ammonia stripper and method comprising a steam flash vessel for generating steam from the wastewater produced by the ammonia stripper for recycling into the ammonia stripper.

Abstract: A system and method for removing ammonia from an ammonia-containing liquid is described. The system comprises a primary heat exchanger 12 for heating the ammonia-containing liquid to operational temperature, an ammonia stripper 14 for stripping ammonia from the ammonia-containing liquid from the primary heat exchanger and discharging it as ammonia-containing gas, and an acid scrubber 16 for reacting the ammonia in the ammonia-containing gas with acid to form an ammonium salt. The acid scrubber comprises a scrubbed air outlet 32 in fluid communication with a hot air inlet 20 of the ammonia stripper, such that scrubbed air which is discharged from the acid scrubber may be recycled for use in the ammonia stripper. Also described is a system and method for removing ammonia from an ammonia-containing liquid, wherein the system comprises a cold-water scrubber for removing ammonia from the ammonia-containing gas discharged from the ammonia stripper.

Abstract: A method of sealing a surface is provided, the method comprising the steps of providing a metallic composition; providing a propellant; heating the metallic composition to above the melting point of the metallic composition to provide at least partially liquid metallic composition; accelerating the at least partially liquid metallic composition towards the surface by means of the propellant; and applying the at least partially liquid metallic composition to the surface.

Abstract: Bismuth-based alloys and the use of plugs made from such alloys to seal wells as well as the plugs themselves are provided. There is provided an alloy of bismuth, tin, and antimony comprising at least about 50% by weight bismuth, about 30 to about 35% by weight tin, and about 1.8 to about 2.8% by weight antimony; and an alloy of bismuth and silver comprising about 91 to about 97% by weight bismuth and about 3 to about 9% by weight silver. There is also provided a method for producing a plug comprising an alloy of bismuth, tin, and antimony; and a method for producing a plug comprising an alloy of bismuth and silver; wherein a length of a well is filled with the molten alloy and the molten alloy is allowed to solidify.

Abstract: A system and method for removing ammonia from an ammonia-containing liquid is disclosed. The system comprises a primary heat exchanger 12 for heating the ammonia-containing liquid to operational temperature, an ammonia stripper 14 for stripping ammonia from the ammonia-containing liquid from the primary heat exchanger and discharging it as ammonia-containing gas, and an acid scrubber 16 for reacting the ammonia in the ammonia-containing gas with acid to form an ammonium salt. The acid scrubber comprises a scrubbed air outlet 32 in fluid communication with a hot air inlet 20 of the ammonia stripper, such that scrubbed air which is discharged from the acid scrubber may be recycled for use in the ammonia stripper. Also disclosed is a system and method for removing ammonia from an ammonia-containing liquid, wherein the system comprises a cold-water scrubber for removing ammonia from the ammonia-containing gas discharged from the ammonia stripper.

Abstract: A microwave oven includes a top wall, side walls, and a bottom wall at least partially defining a cavity of the microwave oven, and a table coupled to the bottom wall. The table has a top surface and an opposing bottom surface. The top surface is configured to support an item within the cavity. A light source directs light to the table. The table is configured to diffuse light emitted from the light source into the cavity.

Abstract: A system for removing ammonia from landfill leachate comprising an economizer for producing high pressure hot water in a hot water circuit from heat exchange with a hot gas stream carrying waste heat; a boiler which is heated by the high pressure hot water to produce steam; and an ammonia stripper. The ammonia stripper has a leachate inlet connected to a leachate flow path, and an ammonia containing gas outlet. A leachate discharge outlet is connected to a leachate discharge flow path, and a steam inlet is provided which is connected to the boiler by a conduit. At a lower end of the ammonia stripper there is a forced air inlet. A randomly packed bed located between the upper end and the lower end. In use there is a flow of steam and air in one direction and of leachate in the opposite direction which releases ammonia from the leachate.

Abstract: This invention provides a system for removing ammonia from landfill leachate. The system comprises: an economiser 22 for producing high pressure hot water in a hot water circuit from heat exchange with a hot gas stream carrying waste heat; a boiler 26 which is heated by the high pressure hot water to produce steam; and an ammonia stripper 32. The ammonia stripper 32 has a leachate inlet 56 connected to a leachate flow path, and an ammonia containing gas outlet 36, at an upper end thereof. A leachate discharge outlet 72 is provided which is connected to a leachate discharge flow path 74, and a steam inlet 70 is provided which is connected to the boiler 26 by a conduit. At a lower end of the ammonia stripper there is a forced air inlet 68. A randomly packed bed 60, 64 located between the upper end and the lower end. In use there is a flow of steam and air in one direction and of leachate in the opposite direction which releases ammonia from the leachate.

Abstract: Systems and methods for appliance remote control identification are provided. An exemplary method includes receiving, at the appliance, an operational command message from a remote control device which instructs the appliance to perform an operation. The method further includes obtaining an identification attribute associated with the remote control device. Further, the identification attribute is presented on a display of the appliance. An exemplary system includes an exemplary appliance having a user interface including a display, a controller, and a remote device interface. The exemplary system further includes a network and a plurality of remote control devices.

Abstract: A system and methods are disclosed for providing a double line break having a secondary power break to function components in a microwave oven. The double line break includes at least two power switches, such as relay devices that provide back-up protection in case one switch fails, or a primary interlock switch corresponding to a door of the oven.

Abstract: A microwave oven includes a top wall, side walls, and a bottom wall at least partially defining a cavity of the microwave oven, and a table coupled to the bottom wall. The table has a top surface and an opposing bottom surface. The top surface is configured to support an item within the cavity. A light source directs light to the table. The table is configured to diffuse light emitted from the light source into the cavity.

Abstract: An appliance for drying or warming associated laundry items includes a housing having a wall forming a stationary cavity dimensioned to receive the associated laundry items. At least one article support member is preferably contained within the cavity. A heater increases a temperature of associated air within the cavity and a fan circulates the heated air within the cavity. A vent is dimensioned to allow air to exit the housing cavity, and a controller regulates circulation of the associated heated air within the cavity.

Abstract: A method and apparatus for forming a plug in a passageway. The apparatus comprises a carrier which in use is lowered into the passageway, the carrier comprising an elongate body of a material resistant to creep which supports at least two spaced apart portions that are a sliding fit in the well such that a gap is formed between each of the portions and the passageway. A body of material the melting point of which is higher than the temperature within the passageway and which expands as it solidifies is supported on the carrier. A heating device is provided for melting the body of material such that the melted material fills a space defined between the first and second portions. The carrier is cooled preferentially to ensure that the molten material solidifies rapidly adjacent the two spaced apart portions, thereby resisting flow of the material as it solidifies past the spaced apart portions.

Abstract: A method of playing a game on a rink including a center planar playing surface surrounded by end and side boards. Two goals are provided opposite to one another on the planar playing surface. Each player utilizes a modified lacrosse stick used to manipulate a ball into the opponent's goal. Unlike, lacrosse, the ball may be rolled on the ground as in hockey, although the main movement of the ball will be airborne from net to net. Passing maneuvers are caught, carried, rolled or thrown.

Abstract: This application discloses a method of extracting hydrocarbons from a submarine well, which is characterized in that a displacement fluid, e.g. water, is injected under pressure into the submarine well, or into a reservoir connected to the submarine well, from a submerged buoy or from a submerged part of a buoy. Typically, the injection fluid is rawwater. A buoy is also disclosed which comprises an upper section (2) arranged to extend above the sea level; and a lower, submerged section (1), characterized in that the lower, submerged section comprises means for providing a displacement fluid under pressure to an output which is connected or is connectable to a submarine well.