Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7258606 | Modular retrofit heating, ventilating and air conditioning system A modular heating, ventilation and air conditioning system including a rectangular sleeve that can be secured through an exterior wall of a building for moving air between an exterior of the building and the interior of the building, an electrical outlet fitted with... | 08/21/2007 |
| 7237598 | Refrigerating device for a water station A refrigerating device for a water station comprises cold storage cabinet, cold water container and refrigerating system. Said cold water container is installed in the cold storage cabinet, one end of which is connected to a water storage pail via a pipeline, and th... | 07/03/2007 |
| 7234311 | Prevention of compressor unpowered reverse rotation in heat pump units A heat pump is provided with a method and control for eliminating compressor un-powered reverse rotation at shutdown. In particular, the position of the four-way reversing valve is changed and the heat pump is moved to the opposite mode of operation as compared to t... | 06/26/2007 |
| 7207189 | Refrigerator having dispenser A dispenser of a conventional refrigerator supplies only cold water. Therefore, the dispenser cannot meet a variety of users' needs. Further, the conventional refrigerator has a problem in that various kinds of water supplied from a water source cannot be properly p... | 04/24/2007 |
| 7165414 | System for the dehumification of air An improved air conditioner system for controlling a desired temperature and a reduced humidity level in a space to be environmentally controlled, that comprises an additional second heat exchanger and third heat exchanger in the separate indoor air flow path. The r... | 01/23/2007 |
| 7117937 | Combined refrigerator-oven apparatus A combined refrigerator-oven (20) includes an enclosed chamber (28) having a top wall (22), a bottom wall (24), and vertical side walls (26). The refrigerator-oven (20) further includes a heating unit (50) and a refri... | 10/10/2006 |
| 7100392 | Machine for producing granita and similar beverages A granita production machine includes a bowl (2) designed to receive a water solution to be transformed into granita. The bowl (2), which is provided with a cover (3) and a granita dispensing tap (4), surrounds a cooling drum (11),... | 09/05/2006 |
| 7096929 | PCM (phase change material) system and method for shifting peak electrical load A PCM system and method of shifting peak electrical load is provided with a PCM system including a heat exchanger, a storage tank coupled to the heat exchanger for storing PCM slurry, a pump coupled to the heat exchanger, an air conditioning unit coupled to the heat... | 08/29/2006 |
| 7069731 | Cooling apparatus Cooling apparatus for use on a vehicle. The apparatus includes a heat exchanger in which heat is removed from a heat load by a coolant, and first and second coolant supplies. The first coolant supply is adapted to receive a first coolant and to supply the first cool... | 07/04/2006 |
| 7044213 | Constant temperature refrigeration system for extensive temperature range application and control method thereof A constant temperature refrigeration system for extensive temperature range application comprising a refrigerator, a low-temperature heat exchanger, a medium-temperature heat exchanger, a high-temperature heat exchanger, a pump, a first solenoid valve, a second sole... | 05/16/2006 |
| 6996995 | Systems and methods for freezing and storing biopharmaceutical material The present invention provides a system for freezing, thawing, and storing biopharmaceutical materials which includes a flexible container, a conduit, and a temperature control unit. The flexible container is adapted to receive a biopharmaceutical material therein f... | 02/14/2006 |
| 6976524 | Apparatus for maximum work An apparatus for maximum work comprising central equipment comprising a refrigeration machine, a water heater, an evaporative cooler and hot and cold storage tanks. Airside equipment for providing supply air to a room or zone. A hot supply/return pipe, a cold supply... | 12/20/2005 |
| 6973958 | Heat transfer apparatus having anti-oxidization device A heat transfer apparatus includes one heat exchanging system having a compressor coupled between a condenser and a heat exchanger. A further heat exchanging system includes a water pump, an ion exchange filter coupled between the water pump and the heat exchanger, ... | 12/13/2005 |
| 6951166 | Unit for preparing baby formula A unit heats water to a specified temperature and then alerts a user or automatically mixes the heated water with dry baby formula and dispenses the mixture into a baby bottle. ... | 10/04/2005 |
| 6918258 | Semi-frozen beverage dispensing apparatus A method of controlling semi-frozen liquid beverage in a dispensing machine having a bowl to contain the beverage, a motor to turn a helical auger blade within the bowl to scrape the semi-frozen beverage, and a compressor to cool the beverage. The method includes th... | 07/19/2005 |
| 6866094 | Temperature-controlled chuck with recovery of circulating temperature control fluid A system and method for controlling temperature in a workpiece chuck are described. A fluid circulation system circulates a temperature control fluid, such as an engineered HFE fluid, through te workpiece chuck. A fluid recovery system coupled to the fluid circulati... | 03/15/2005 |
| 6802368 | Temperature control system for a workpiece chuck A system for and method of controlling the temperature of a flat workpiece such as a semiconductor wafer are disclosed. The workpiece is mounted on a workpiece chuck which is mounted over a base between the chuck and a host machine such as a wafer prober used to tes... | 10/12/2004 |
| 6679314 | Frozen beverage machine control system and method A method of operating a frozen beverage machine is disclosed that utilizes a short "burst" heating of the beverage machine's freezing chamber. The method includes monitoring a beverage mixture within the freezing chamber of the frozen beverage machine, an... | 01/20/2004 |
| 6513578 | Frozen beverage machine control system and method A method of operating a frozen beverage machine is disclosed that utilizes a short "burst" heating of the beverage machine's freezing chamber. The method includes monitoring a beverage mixture within the freezing chamber of the frozen beverage machine, an... | 02/04/2003 |
| 6497276 | Combined refrigerator-oven apparatus A combined refrigerator-oven (20) includes an enclosed chamber (28) having a top wall (22), a bottom wall (24), and vertical side walls (26). The refrigerator-oven (20) further includes a heating unit (50) and a refrigeration unit (70). A controller (118)... | 12/24/2002 |
| 6427761 | Meal tray with chemical heating and cooling A meal trolley has an insulated casing and food dishes or plates supported therein for cooling and heating by thermochemical reactions. The reagents of the chemical reactions are stored in containers and reservoirs carried by the trolley and selectively c... | 08/06/2002 |
| 6415858 | Temperature control system for a workpiece chuck A system for and method of controlling the temperature of a flat workpiece such as a semiconductor wafer are disclosed. The workpiece is mounted on a workpiece chuck which is mounted over a base between the chuck and a host machine such as a wafer prober ... | 07/09/2002 |
| 6250372 | Air conditioner An air condition includes a suction grill for sucking the air in a room, a front panel including an inlet port for sucking the air from the suction grill inside and a blowout port for blowing the air out into the room, a heat exchanger for heat exchange o... | 06/26/2001 |
| 6244329 | Method and apparatus for producing controlled freezing of a liquid A system and method for producing controlled cooling of a liquid including the steps of: removing heat from the liquid so as to cause formation of solid portions therein; and generally simultaneously with removing heat from the liquid, supplying energy to... | 06/12/2001 |
| 6213199 | Temperature selectable water supply device A temperature selectable water supply device for one of heating and cooling water provided by a water supply system to an outlet in a structure. The device includes a main water tank including an inlet conduit for receiving water from a water supply tank ... | 04/10/2001 |
| 6123147 | Humidity control apparatus for residential air conditioning system A system for controlling the humidity with a residential air conditioning system without compressor or air flow control employs a simple control technique of matching inlet air temperature prior to the refrigeration coils of the air conditioning system to... | 09/26/2000 |
| 6073547 | Food temperature maintenance apparatus A food temperature maintenance cart transports meals of hot and cold food items prepared at a meal assembly area to a meal serving area where the meals are to be served, while keeping hot foods hot and cold foods cold for extended periods of time. The car... | 06/13/2000 |
| 5967226 | Slush machine A slush machine which is capable of selectively providing a slush state or hot drink. The machine includes a main body casing, a refrigerating cycle apparatus including a compressor installed in the main body machine, a condenser connected with the compre... | 10/19/1999 |
| 5894615 | Temperature selectively controllable body supporting pad A bed pad has embedded in it a circuit of continuous tubing. Portable heating and refrigerating means are operatively connected to a second tubing circuit by quick disconnect couplings. Electrical control means are selectively operated to heat or cool the... | 04/20/1999 |
| 5692556 | Precision temperature test chamber Milli-Kelvin temperature control in an air chamber by use of coarse and fine temperature control systems, and through the use of structure for handling air flow within the chamber. The coarse control system provides enough heating or cooling power to hold... | 12/02/1997 |
| 5507337 | Heat pump and air conditioning system incorporating thermal storage A heat pump and air conditioning system is provided with a thermal storage device, a variety of distribution devices for blocking or allowing flow of the system working fluid, and a controller for manipulating the distribution devices to control flow of t... | 04/16/1996 |
| 5448838 | Apparatus for restoring plastic surfaces An apparatus for finishing or restoring the surface of a plastic article. A receiving chamber receives the article and conveys the article to a finishing chamber. The surface of the article is exposed to a control led concentration of solvent vapor for a ... | 09/12/1995 |
| 5388427 | Refrigerator with kimchi compartment A refrigerator has a freezer compartment, a refrigeration compartment located beneath the freezer compartment, and a heating/cooling compartment located beneath the refrigeration compartment. The heating/cooling compartment contains its own heating and co... | 02/14/1995 |
| 5289868 | Absorption chiller heater and unit-type air conditioning system An unit-type air conditioning system is provided to enable low-load operation of an absorption chiller heater, to thereby improve the load responsiveness, and to use such a chiller heater as an outdoor unit. A plurality of burners are provided in a high t... | 03/01/1994 |
| 5245150 | Selective reheating device for food products Device for reheating and dispensing cooked meals arranged on a meal tray and stored on stand-by in a refrigerated enclosure. Each tray may contain different foodstuffs, and can therefore be selected by the consumer. Reheating is carried out by a sliding o... | 09/14/1993 |
| 5211713 | Temperature control method with simultaneous heating and cooling near the set-point A temperature control method for controlling a temperature in a chamber comprises the steps of: providing heating means which can select large and small heating powers for heating the chamber and refrigerating means for cooling the chamber; detecting a pr... | 05/18/1993 |
| 4984628 | Apparatus for maintaining liquid temperature at a constant level An apparatus for maintaining liquid temperature at a constant level comprises a reaction vessel for containing liquid, a cooling device connected with the reaction vessel for cooling the liquid, a heating device connected with the cooling device for heati... | 01/15/1991 |
| 4963499 | Method for the calorimetry of chemical processes A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described. The present invention also relates to a method of operation of this appara... | 10/16/1990 |
| 4961455 | Countergravity casing apparatus and method with magnetically actuated valve to prevent molten metal run-out The casting apparatus and method include a magnetically responsive valve disposed in the molten metal inlet passage of the mold for movement between an open position during mold filling and a closed position after mold filling and during removal of the mo... | 10/09/1990 |
| 4913223 | Apparatus for defreezing frozen foods A defrosting apparatus comprises a housing defining therein a frozen food storage space. Within the housing, air is heated and supplied to the storage space through a hot-air entrance passage formed between a side wall of the housing and one of paired she... | 04/03/1990 |
