Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8156754 | Carbon dioxide refrigerant-coolant heat exchanger A climate control system may include a condenser, an evaporator, a compressor, a coolant circuit, and a heat exchanger. The evaporator may be in fluid communication with the condenser. The compressor may be in fluid communication with the condenser and the evaporato... | 04/17/2012 |
| 7975501 | Air conditioning system for a motor vehicle An auxiliary air conditioning system (7) for a motor vehicle (1), comprising a first heat exchanger (17) adapted to be installed inside a passenger compartment (4) of the motor vehicle and an external unit (43) comprising an auxili... | 07/12/2011 |
| 7454922 | Vehicle air conditioning and heating method providing engine on and engine off operation An air conditioning system for use in an over-the-road or off road vehicle that provides operation during both engine on and engine off conditions. The system includes a variable speed compressor, a motor, and a controller. The controller receives electric power fro... | 11/25/2008 |
| 7448227 | Vehicle air conditioning and heating method providing engine on and engine off operation An air conditioning system for use in an over-the-road or off road vehicle provides operation during both engine on and engine off conditions. The system includes a variable speed compressor, a motor, and a controller. The controller receives electric power from the... | 11/11/2008 |
| 7434611 | Roof module A roof module (10) for a motor vehicle, with an integrated climate control system (12, 14, 16, 18). Furthermore, the roof module (10) includes a fuel cell system (32, 34, 38). The roof module (10) is preferably a pre-mounted comple... | 10/14/2008 |
| 7418824 | Refrigerating apparatus and fluid machine therefor A complex fluid machine has an expansion-compressor device, a pump, and a motor generator, wherein the expansion-compressor device, the pump, and the motor generator are operatively connected and arranged in series, and a power transmitting device for disconnecting ... | 09/02/2008 |
| 7406834 | Self-contained mobile walk-in cooler A self-contained mobile walk-in cooler is disclosed. The self-contained mobile walk-in cooler is comprised of a refrigeration unit, a gasoline generator to provide power to the refrigeration unit when a permanent power source is unavailable, and a mobile carriage fo... | 08/05/2008 |
| 7380405 | Air conditioning system Implementations of the present invention include systems, methods, and apparatus for improving the fuel efficiency (mpg/kpl) of a motor vehicle during those times when the vehicle air conditioning system is operating. Whenever the driver takes his foot off the gas, ... | 06/03/2008 |
| 7362060 | Self-learning control system and method for controlling fan speed A feedback control logic system for commanding a particular air conditioning unit fan speed is driven by a pulse-width modulated signal from a control unit. The engine control unit decrements the pulse-width modulated signal to the air conditioning unit fan and allo... | 04/22/2008 |
| 7350365 | Method for controlling cogeneration system A method for controlling a cogeneration system is disclosed. The control method determines whether or not the operation load or power load of an air conditioner corresponds to a load requiring driving of a generator, controls the generator to operate when it is dete... | 04/01/2008 |
| 7337622 | Humidity-based defog control method for a vehicle climate control system A vehicle climate control system develops a fog index based on relative humidity at or near the inner surface of the windshield, and uses the fog index to variably override the normal control settings. The relative humidity is combined with a pair of humidity thresh... | 03/04/2008 |
| 7322800 | System and method of providing hydraulic pressure for mechanical work from an engine lubricating system The method provides hydraulic pressure for mechanical work from an engine lubricating system in an internal combustion engine by supplying oil to an engine lubrication gallery for lubricating the engine and to at least one variable oil demand accessory. Each of the ... | 01/29/2008 |
| 7310962 | Evaporative coolers An evaporative cooler has a housing mounted within the roof space of a pitched roof with the housing inlet, which mounts evaporative cooling pads, lying at or adjacent to the plane of the roof. This construction avoids the unsightly protrusion normally associated wi... | 12/25/2007 |
| 7264046 | Air-conditioning system An air-conditioning system embodiment for temperature control in a vehicle comprises heater cores, controllably connected to a coolant contour, outletting the conditioned air towards a person sitting in a chair, or into a food compartment. Some cores are mounted ins... | 09/04/2007 |
| 7260947 | Air conditioning system operating on vehicle waste energy A waste energy-based vehicle air conditioning system includes efficient compression driving means coupled to refrigeration means. In one implementation, the compression driving means includes a controller (e.g., magnetic clutch) that couples mechanical waste energy ... | 08/28/2007 |
| 7243505 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which includes at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish ... | 07/17/2007 |
| 7243504 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit using a heat pump type refrigerant cycle, in which a refrigerant is circulated through at least one compressor, a four-way valve, a first outdoor heat... | 07/17/2007 |
| 7216495 | Air conditioning system Implementations of the present invention include systems, methods, and apparatus for improving the fuel efficiency (mpg/kpl) of a motor vehicle during those times when the vehicle air conditioning system is operating. Whenever the driver takes his foot off the gas, ... | 05/15/2007 |
| 7188400 | Method for mounting units for an avionic display An improved device and method for mounting an avionic system is shown. The design provides varying locations of key components, which allows a single mounting system to be used with several varieties and configurations of aircraft within the crowded confines of an i... | 03/13/2007 |
| 7182129 | Device for heating and/or air-conditioning the passenger compartment of a motor vehicle A device for air-conditioning a motor vehicle has an engine-cooling loop, a heat-pump loop containing a compressor, an evaporator as cold source of the heat pump and a condenser as hot source of the heat pump. The condenser is integrated into the engine-cooling loop... | 02/27/2007 |
| 7178347 | Method for refrigerant and oil collecting operation and refrigerant and oil collection controller A method for refrigerant and oil collecting operation capable of assuring the cleanliness of the inside of an existing communication pipe at a low cost and installing, at a low cost, a new air conditioner, comprising a compressor (1), a heat source side heat ... | 02/20/2007 |
| 7170191 | Electricity generating and air conditioning system with water heater A cogeneration system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, which uses the electricity generated from the generator, and includes a compressor, a directional valve, an ou... | 01/30/2007 |
| 7168400 | Cooling system for internal combustion engine A cooling system for enhanced variable cooling of internal combustion engine having a multi-speed water pump connected to an internal combustion engine for pumping conventional refrigerant. A radiator is connected to the multi-speed water pump and is in fluid commun... | 01/30/2007 |
| 7162880 | Cooling apparatus, systems and methods The present invention is directed toward a method, apparatus and system for cooling goods, such as, for example, agricultural products, in a substantially sealed chamber. A method of the invention includes placing goods on a surface; forming a chamber over the goods... | 01/16/2007 |
| 7152421 | Heating and cooling system A heating and cooling system incorporates a heat pump that operates conventionally with air drawn from outside the system through its condenser coils that remove heat to the exterior for cooling. In the heating cycle, the condenser motor blower stops and reverses ro... | 12/26/2006 |
| 7145258 | Electricity generating and air conditioning system An electricity generating and air conditioning system including an engine, a generator connected to an output shaft of the engine to generate electricity, an air conditioner, which uses the electricity generated from the generator and includes a compressor, an indoo... | 12/05/2006 |
| 7124586 | Individual cogeneration plant and local network The invention concerns a cogeneration plant preferably using a compressor-alternator unit equipped with a thermal heater operating independently, by drawing compressed air supplied by one or several compression stages, which is then heated to increase its temperatur... | 10/24/2006 |
| 7086241 | Hydraulic power unit for a refrigeration system A hydraulic power unit for a refrigeration system. According to one aspect of the invention, the power unit is provided for driving the refrigeration system of a truck having an engine for propelling the truck and a power take off from the engine. The refrigeration ... | 08/08/2006 |
| 7069983 | Air conditioner An air conditioner for a vehicle includes a refrigerant cycle having an evaporator which is disposed in a blowing duct and cools air by refrigerant evaporation in the blowing duct; a compressor setting the evaporated refrigerant at a high temperature and high pressu... | 07/04/2006 |
| 7065977 | Refrigerated merchandiser with foul-resistant condenser A refrigerated cold beverage merchandiser (10) includes an enclosure defining an insulated, refrigerated display cabinet (25) and a compartment (30) heat insulated therefrom wherein a compressor (40) a condenser (50) and a condense... | 06/27/2006 |
| 7055590 | Air conditioning apparatus for vehicle An air conditioning apparatus includes a valve for selectively introducing the coolant discharged from a compressor to either a flow path for a water-coolant heat exchanger or another flow path to avoid the heat exchanger, a thermostat for detecting the temperature ... | 06/06/2006 |
| 7048044 | Heat control system There are provided a water-refrigerant heat exchanger 30 for exchanging heat between refrigerant discharged from a compressor 21 and engine-cooling water circulating an engine-cooling water circuit 10, prior to being fed into the radiator 22,... | 05/23/2006 |
| 7029242 | Hermetic compressor with one-quarter wavelength tuner A compressor including a housing defining an interior plenum; a refrigerant received within the interior plenum and having a resonant wavelength; a motor disposed within the housing; a compression mechanism disposed within the housing and operably connected to the m... | 04/18/2006 |
| 7028496 | Air-conditioning system for vehicle An air-conditioning system for a vehicle includes an electronic control unit which detects a collision of the vehicle and activates an air bag of the vehicle, and a circulation passage for a refrigerant or R152a. The system further includes a discharge device which ... | 04/18/2006 |
| 7017360 | Control method for a vehicle having an engine and an accessory device A method for controlling cycling of an air conditioning compressor coupled to an internal combustion engine interrupts normal cycling based on operation conditions. In addition, normal engaged and disengaged cycling durations are adaptively estimated in real-time. T... | 03/28/2006 |
| 7007491 | Thermal management system for a vehicle A thermal management system for a vehicle includes an engine operable to generate energy. An energy storage unit may be associated with the engine and adapted to receive and store the energy generated by the engine. A temperature control unit may be associated with ... | 03/07/2006 |
| 7003964 | Heat pump system A heat pump system (10) including a heat generator (15), a heat engine (26) supplied with heat engine working fluid (18) by the heat generator (15) having a heat engine cylinder chamber (34), a heat engine piston (32)... | 02/28/2006 |
| 6945061 | Control unit for variable displacement compressors A control unit for variable displacement compressors is used for two independent air conditioning cycles, wherein two compressors 1, 11 driven by a common external drive source 8 include electromagnetic displacement control valves 6, 16, respect... | 09/20/2005 |
| 6932148 | Vehicle heating and cooling system A heating and air-conditioning system has an auxiliary engine for heating and cooling of a vehicle while the primary engine of the vehicle is not operating. The vehicle has a sleeper compartment with a sleeper compartment air conditioning unit powered by the main en... | 08/23/2005 |
| 6933687 | Dual motor configuration with primary brushless motor and secondary integrated speed control motor A dual motor configuration 10 is provided for driving two fans for moving air to cool an engine. The dual motor configuration includes a primary brushless motor 18 constructed and arranged to be electronically controlled to drive a first fan 16 ... | 08/23/2005 |
