Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7407002 | Air conditioner and outdoor unit therefor An air conditioner comprises an outdoor unit and an indoor unit provided with an indoor heat exchanger and an indoor expansion device, wherein the outdoor unit comprises a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchanging a refr... | 08/05/2008 |
| 7380588 | Heat pump control system and method of operating to provide automatic backup heating modes A heat pump type heating and air conditioning system includes a gas furnace or other auxiliary heat source and a thermostat and controller associated with the heat pump and the auxiliary heat source for automatically energizing the heat pump if the auxiliary heat so... | 06/03/2008 |
| 7331383 | Shore power system including a HVAC system A shore power HVAC system for a vehicle is provided. The vehicle has a vehicular HVAC system with an engine compressor, a condenser, and an expansion valve and an evaporator coupled to each other in series by a plurality of conduits. The shore power HVAC system incl... | 02/19/2008 |
| 7320458 | Heating tower apparatus and method with isolation of outlet and inlet air A method for heating a fluid using a heating tower. The method includes the steps of drawing an air stream into the heating tower through an inlet and passing the air stream over a series of coils. The method for heating a fluid also includes discharging the air str... | 01/22/2008 |
| 7316267 | Heat pump water device A flash water heater using a heat pump includes a heat exchanger in which a refrigerant flow path exchanges heat with a water flow path. Tap water is led directly to the water flow path, and hot water supplied from the water flow path is used. The water heater inclu... | 01/08/2008 |
| 7305841 | Cogeneration system A cogeneration system is disclosed. The cogeneration system includes a heat pump type air conditioner, a waste heat recoverer to recover waste heat of a drive source, a waste heat supplying heat exchanger, which is heated by the waste heat recovered by the waste hea... | 12/11/2007 |
| 7290599 | System for heating and cooling the interior of a motor vehicle A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool a front area of the interior, and a second climate control device designed to heat or cool a rear area of the interior. A first evaporat... | 11/06/2007 |
| 7287581 | Full function vehicle HVAC/PTC thermal system The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted during dehumidification of the ventilation air to be transferred into d... | 10/30/2007 |
| 7275382 | Cogeneration system A cogeneration system including a generator, a drive source operating to drive the generator, and thus, to cause the generator to generate electricity, a heat pump type air conditioner including a compressor, a 4-way valve, an indoor heat exchanger, an expansion dev... | 10/02/2007 |
| 7253379 | High voltage circuit breaker with cooling In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one... | 08/07/2007 |
| 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 |
| 7240509 | Heating and cooling system A heating and cooling system includes a compressor for pumping a heat medium through a tubing device, a heat exchanger coupled to the compressor for receiving compressed heat medium from the compressor, a flowing control device coupled to the heat exchanger, another... | 07/10/2007 |
| 7243044 | Method and system for assessing energy performance A computerized system and method for benchmarking energy performance in a building are provided. The method includes receiving utility use data for the building, receiving weather data for the building, and computing a best thermodynamic break-even temperature for t... | 07/10/2007 |
| 7240504 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish... | 07/10/2007 |
| 7216698 | Air-conditioning system An air-conditioning system for a building includes a hot water distribution circuit, a cold water distribution circuit, and several terminal air conditioning units. Each of the terminal air conditioning units includes a fan blowing air in a space of the building, a ... | 05/15/2007 |
| 7216697 | Method of operating a cooling and heating circuit of a motor vehicle In a method for operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine, a first cooling medium path is provided through a bypass conduit, a second cooling medium path is provided through a main cooler of the internal combu... | 05/15/2007 |
| 7210303 | Transcritical heat pump water heating system using auxiliary electric heater Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. An auxiliary electric heater is activated to further heat the heated water exiting the gas cooler when the heating capacity of ... | 05/01/2007 |
| 7207379 | Automotive air conditioning system An automotive air conditioning system comprising a main heating unit 4 for heating air passing through an air conditioning duct 2 with cooling water of an engine E and a refrigeration cycle device 20 having a first refrigerant circulating circui... | 04/24/2007 |
| 7181919 | System utilizing waste heat of internal combustion engine A waste heat energy recovery system has a refrigerant cycle and a Rankine cycle. When the cycle operation is changed from the refrigerant cycle to the Rankine cycle, an expansion device is started after the pump is started. When the cycle operation is changed from t... | 02/27/2007 |
| 7180211 | Temperature sensor A temperature sensor is comprised of a device adapted to provide a first signal having a parameter responsive to temperature. A generator provides a reference signal having a parameter that is substantially consistent over a preselected temperature range. A comparat... | 02/20/2007 |
| 7174727 | Cogeneration system and method for controlling the same A cogeneration system including a pre-heater to pre-heat outdoor air blown toward the outdoor heat exchanger during a heating operation of a heat pump type air conditioner, an auxiliary evaporator to evaporate a refrigerant emerging from the outdoor heat exchanger d... | 02/13/2007 |
| 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 |
| 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 |
| 7140427 | Vehicle air conditioner with defrosting operation in exterior heat exchanger In a vehicle air conditioner for heating a passenger compartment by a heater core and a heat pump cycle, when operation of a heat pump cycle is switched from a defrosting operation to a heating assist operation, a heating degree of the heater core is increased highe... | 11/28/2006 |
| 7119308 | Forced-air heater control system and method The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant from the heating element(s). The control system, in this embodiment, tak... | 10/10/2006 |
| 7108478 | Blower housing and cabinet with improved blower inlet airflow distribution An airhandling unit for an HVAC system includes a cabinet having an electric motor driven centrifugal blower disposed therein. The blower includes a scroll or volute type blower housing which may be formed of opposed releasably connectable housing parts. The blower ... | 09/19/2006 |
| 7085626 | Method and apparatus to prevent low temperature damage using an HVAC control A heating control method is provided for a multi-stage heating system including a heating circuit having a compressor, a condenser and an evaporator. An auxiliary heater is provided that is selectively controlled independently of the heating circuit. During a heatin... | 08/01/2006 |
| 7082352 | Temperature control apparatus for a heater using an encoder switch and method thereof Disclosed is a temperature control apparatus for a heater using an encoder switch and method thereof that controls an indoor temperature by driving a burner in accordance with a change of an indoor temperature and ventilating heated air indoors. The temperature cont... | 07/25/2006 |
| 7080520 | Air conditioning system The invention is based on a climate control system for a vehicle that is driven by an internal combustion engine (10), having a heating heat exchanger (24) which is connected to a coolant loop (12) of the engine (10) and is preceded upstr... | 07/25/2006 |
| 7076964 | Super-critical refrigerant cycle system and water heater using the same In a heat-pump water heater with a super-critical refrigerant cycle, a valve open degree of a decompression valve is controlled to control a pressure of high-pressure side refrigerant so that a temperature difference between refrigerant flowing out from the water-re... | 07/18/2006 |
| 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 |
| 7065978 | Air conditioner An air conditioner is disclosed, which has an improved structure to use with easiness by connecting a duct thereto, the duct being in communication with the inside. The air conditioner includes a cabinet having an inlet for supplying air of an indoor room to the ins... | 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 |
| 7028767 | Vehicle air conditioner with hot-gas heater cycle A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a heating mode in which the interior heat exchanger is operated as a radiator for heatin... | 04/18/2006 |
| 7028492 | Hybrid dehumidication system A hybrid dehumidification system includes a compressor, a condenser, an expansion device and an evaporator connected for flow of working fluid through a fluid circuit; a reheat coil positioned relative to the evaporator for heating at least a portion of a stream of ... | 04/18/2006 |
| 7028501 | Air-conditioning system for a motor vehicle In an air-conditioning system for a motor vehicle having an integrated heat pump for cooling and heating, in which refrigerant is circulated and which allows heat exchange with the incoming air for the interior compartment of the motor vehicle, the heat transfer is ... | 04/18/2006 |
| 7021073 | Heat pump hot water supply system of hot water storage type When heating up the water in the lower inner part of a hot water tank by a heat pump unit, a control unit stops the heat-up operation while leaving the hot water in an amount corresponding to the residual water capacity in the hot water tank detected by water level ... | 04/04/2006 |
| 7012223 | Forced-air heater control system and method The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant from the heating element(s). The control system, in this embodiment, tak... | 03/14/2006 |
