Abstract: A dishwasher includes a housing, a wash chamber in the housing that receives kitchenware therein, a detergent dispenser for introducing a detergent into the wash chamber, and a heater for raising temperature in the wash chamber. The dishwasher further includes a controller for selectively controlling water supply to and from the dish chamber. The controller establishes a temperature of the wash fluid circulating in the wash chamber during the first period in a range from about 115° F. (46° C.) to about 135° F. (58° C.) to enhance the wash performance of enzyme-based detergents and establishes a temperature of the wash fluid during a second period in the range from about 150° F. (65° C.) to about 160° F. (72° C.) to enhance wash performance of a chlorine-based detergent.

Abstract: A dishwasher having a washing chamber includes at least one prewash cycle for removing loose soil from associated kitchenware, a steam cycle instituted after the at least one prewash cycle for softening soil not removed in the at least one prewash cycle, a main wash cycle commenced after the steam cycle cleaning the associated kitchenware, and at least one rinse cycle commenced subsequent to the main wash cycle for rinsing detergent and remaining soil off of the associated kitchenware. The dishwasher includes a housing having a wash chamber that receives associated kitchenware therein and a controller for selectively controlling water supply from an associated source, water removal to an associated drain, and energization of a heating element contained in the wash chamber.

Abstract: A control system for controlling a fill operation of a dishwasher having a pump and a pump motor driving the pump, and the dishwasher having a valve for controlling the flow of water to the dishwasher includes a monitoring device configured to be coupled to at least one of the pump and the pump motor. The monitoring device generates an output relating to at least one of an operating current and a speed of the pump motor. The control system also includes a controller configured to be operatively coupled to the valve, wherein the controller receives the output and is configured to operate the valve based on the output. The output relates to a fill condition of the dishwasher.

Abstract: The present invention is a hybrid diesel fuel and method of manufacture. The fuel composes a petroleum diesel fuel mixed into a biosynthetic waste or virgin oil and further containing a stabilizer. The hybrid fuel consists essentially of about 10% to 50% of Diesel Number 1, Diesel Number 2, or Farm Diesel petroleum fuels, and up to 90% filtered and polished biosynthetic oil, measured by volume. The biosynthetic oil can contain all levels of common commercial vegetable and animal fats in any ratio. The hybrid fuel also contains up to about 0.17% stabilizer, which further contains cetane boosters, cleaning agents to remove deposits from the fuel system, a lubricant, demulsifiers, and anti-gelling agents. The invention functions as biocide to inhibit bacterial growth. The invention is substantially equivalent to Diesel Number 2 in terms of power and engine speed, but is cleaner burning and considerably less costly.

Abstract: A dishwasher includes a cabinet having a wash chamber defined therein, a tub positioned within the wash chamber, a door coupled to the cabinet, and a fan positioned within the cabinet. An air conduit is positioned within the dishwasher and includes a conduit body configured to be mounted onto the door. The conduit body includes an air inlet and an air outlet, the air inlet is configured to be coupled in flow communication with the fan. The air conduit body is configured to channel air from the wash chamber through the conduit to an outside of the dishwasher, isolate the air within the conduit body from contacting the door, and provide a receptacle for condensed water other than a wash chamber tub.

Abstract: A dishwasher includes a cabinet, an upper rack and a lower rack disposed within the cabinet. The upper and lower racks support articles to be cleaned. The dishwasher also includes a first spray arm and a second spray arm rotatably mounted within the cabinet. The first and second spray arms are operated based on a wash cycle. A controller is operatively coupled to the first and second spray arms for controlling the wash cycle.

Abstract: In one aspect, a dishwasher having an upper rack wash operation is described. In one example embodiment, the dishwasher comprises a tub, and a fluid circulation assembly for circulating water. The assembly comprises a pump, a lower spray arm, and at least one other spray arm. The at least one other spray arm comprises one of a mid level spray arm and an upper spray arm. The pump is in flow communication with the lower spray arm via a water passage, and the pump is in flow communication with the other spray arm via a conduit that permits water flow around the water passage. The dishwasher further comprises a water flow blocking mechanism comprising a water flow blocking device, a magnet positioned outside the water flow path, and a magnet positioning device coupled to the magnet. The water flow blocking device is normally positioned in a pocket in the conduit. The magnet positioning device is configured to cause the magnet to move from a first position to a second position.