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| Number | Title | Issue Date |
| 7353861 | Transpiration cooled heat sink and a self contained coolant supply for same A transpiration cooled heat sink, a self contained coolant supply and a method of using a transpiration cooled heat sink and a self contained coolant supply is provided and includes a heat sink base structure, the heat sink base structure having a coolant inlet for ... | 04/08/2008 |
| 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 |
| 7333345 | Combination current sensor and relay A combination current sensor and relay has an improved housing. In one aspect, the housing includes light emitting diodes on an upper surface that indicate open circuit and short circuit conditions. In another aspect, the housing includes a securement structure for ... | 02/19/2008 |
| 7261242 | Sound insulation for electric relay An electric unit, such as a room thermostat has a circuit board and an electromechanical switch mounted to the circuit board. The circuit board and the electromechanical switch are housed in a casing. The casing is filled with a sound insulation material with the el... | 08/28/2007 |
| 7189949 | Power control system and method for regulating power provided to a heating device A circuit includes a switching device for controlling a power signal to be applied to a heating device. A control circuit is configured for comparing a temperature signal, indicative of the temperature of the heating device, to a temperature setpoint to generate a g... | 03/13/2007 |
| 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 |
| 7143724 | Power supply device for vehicle A power supply device for a vehicle, for driving a motor which is mounted on a vehicle and makes the vehicle travel. The power supply device for a vehicle includes: a battery unit having a plurality of secondary batteries; a battery temperature sensor for detecting ... | 12/05/2006 |
| 7131490 | Fan coil controller A fan coil controller for a hot and cold water system of a building that turns off the fan while the hot water and cold water coils are flushed. A fan coil control circuit is configured to periodically and temporarily operate a hot water flow control circuit and a c... | 11/07/2006 |
| 7053342 | Electric cooking apparatus and method of controlling heaters thereof An electric cooking apparatus and method of controlling heaters thereof, in which the heaters operate according to power-ON periods and power-OFF periods set in view of a temperature of the heaters, consumption of unnecessary power is reduced, and variations of heat... | 05/30/2006 |
| 6889764 | Cooling device and cooling method A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval, temperatur... | 05/10/2005 |
| 6742582 | Modular climate control unit An apparatus for internal climate control. The apparatus comprises an inlet and outlet for air, a tangential fan that rotates about a vertically oriented axis, a fan coil assembly through which air is circulated by the tangential fan from the inlet to the outlet, a ... | 06/01/2004 |
| 6671175 | Assembly of computer peripherals An assembly of computer peripherals, which has the functions of (temperature control and fan rotation speed regulation, includes a host casing, a temperature sensing circuit, a fan driver circuit, a liquid crystal display (LCD) driver circuit, an alarm ci... | 12/30/2003 |
| 6427772 | Electronic refrigeration control system The present invention is direct to a system and method for electronically controlling the refrigeration and/or heating of the product storage compartment in a vending machine. The system includes a temperature sensor for sensing the temperature in the pro... | 08/06/2002 |
| 6223817 | Electronic refrigeration control system The present invention is direct to a system and method for electronically controlling the refrigeration and/or heating of the product storage compartment in a vending machine. The system includes a temperature sensor for sensing the temperature in the pro... | 05/01/2001 |
| 6216475 | Cooling device and cooling method A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval,... | 04/17/2001 |
| 6134134 | Thermostat voltage adapter The present invention is a voltage adapter for a low voltage thermostat which permits the following input voltage ranges: 100-132 VAC/50 or 60 Hz, 200-264 VAC/50 or 60 Hz, and 265-330 VAC/50 or 60 Hz maintaining an output of at or just effectively about 24 VAC.... | 10/17/2000 |
| 6089310 | Thermostat with load activation detection feature A thermostat for control of an AC-operated HVAC unit (or a unit providing only heating or only cooling) is provided with load activation detection sensing for increased reliability of latching relay activation. The thermostat includes a sensing transforme... | 07/18/2000 |
| 5941083 | Cooling device and cooling method A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval,... | 08/24/1999 |
| 5878811 | Apparatus and method for the controlled cooling of chemical tanks An apparatus for the controlled cooling of chemical tanks containing a chemical which must be kept at a first prescribed temperature includes at least one heat-exchanger coil immersed inside a chemical tank and through which there is made to circulate a f... | 03/09/1999 |
| 5819845 | Temperature control method for a heating/cooling system A temperature control method and apparatus therefor controls an air temperature in a room by determining an error temperature between a set temperature and an actual room temperature. An auxiliary reference calorie is initially set as a previous state cal... | 10/13/1998 |
| 5646358 | High accuracy weathering test machine A weathering testing machine or the like is provided with improved stabilization of conditions such as temperature and humidity, coupled with more accurate readout from sensors on a moving member in the machine, and other sensors and microprocessors.... | 07/08/1997 |
| 5592989 | Electronic thermostat having high and low voltage control capability An electronic thermostat having high and low voltage control capability and varied functional capabilities. The thermostat is particularly suited for use with fan coil heating and cooling units. Specifically the thermostat uses relays to actuate external ... | 01/14/1997 |
| 5582237 | Apparatus for preventing thermal deformation of a machine tool An apparatus for preventing thermal deformation of a machine tool has a feed unit which heats a heat transfer fluid and pumps it out to a heat exchanging portion. The heat exchanging portion has at least one heat exchanging unit capable of being expanded ... | 12/10/1996 |
| 5560422 | Controller for air conditioner A controller for an air conditioner is provided wherein an operation mode is not unnecessarily changed in accordance with variations in temperature. When room temperature t is in a range of T+3.0>tࣙT+1.5, and when a timer expires (steps 212, 214), it is... | 10/01/1996 |
| 5558274 | Dual duct control system The present invention relates to a dual duct control system for use in an environmental control system. The dual duct control system is preferably utilized in a dual duct VAV box. The control system advantageously receives room temperature values, mixed a... | 09/24/1996 |
| 5520327 | Electronic thermostat having safety feature An electronic thermostat having a safety feature includes a controller which sends control signals to circuitry used for activating a system for conditioning air. The control signals are used to control the active state of the system for conditioning air.... | 05/28/1996 |
| 5515682 | Peltier control circuit and a peltier device structure A Peltier control circuit detects a temperature of a device combined with a Peltier device and controls a current flowing through the Peltier device so as to keep the temperature of the device at a predetermined value. The circuit has a temperature sensin... | 05/14/1996 |
| 5460221 | Fan coil thermostat with circuitry to assure minimum power for relay pull-in A thermostat capable of accommodating primary and secondary loads is taught. Preferably a hydronic valve actuator is the primary load and a fan coil of variable speed is the secondary load. Temperature sensing is electronic and both heating and cooling as... | 10/24/1995 |
| 5452762 | Environmental control system using poled diodes to allow additional controlled devices in existing four wire system An environmental control system for controlling heating, ventilation, humidification and air conditioning equipment located in plant area of a house includes a kit consisting of a remote control unit located in a living space of a house that is linked by ... | 09/26/1995 |
| 5450727 | Thermoelectric cooler controller, thermal reference source and detector A thermoelectric cooler controller, a thermal reference source employing the controller, a thermal reference source, and a thermal calibration system. The controller controls the temperature of a thermoelectric cooler. The controller includes a temperatur... | 09/19/1995 |
| 5381954 | Temperature control apparatus A temperature control apparatus and method which utilizes a characteristic of a temperature detection device which detects temperature over a wide range of changing temperature and makes it possible to control a unit by detecting a wide range of changing ... | 01/17/1995 |
| 5352930 | System powered power supply using dual transformer HVAC systems A power supply to supply power to a secondary system. The power supply is adapted to receive power from a plurality of primary systems. The power supply having a first rectifier which supplies power to the secondary system from a first primary system. At ... | 10/04/1994 |
| 5320162 | Single pole double throw thermostat for narrow range temperature regulation A thermostat is disclosed having a bimetallic strip actuating a single pole, double throw switch, one throw to sense temperatures below the lower limit of a set point range and the other throw to sense temperatures above the upper limit of the set point r... | 06/14/1994 |
| 5277034 | Air conditioning system An air-conditioning system for a cooling operation and a heating operation comprises a first heat exchanger to which a high-pressure and high-temperature refrigerant which has not been substantially cooled and adiabatically expanded after being compressed... | 01/11/1994 |
| 5224648 | Two-way wireless HVAC system and thermostat A building automation system comprising: means for conditioning air; means, associated with the air conditioning means, for distributing the conditioned air to at least one space to be conditioned and means for sensing environmental conditions in the at l... | 07/06/1993 |
| 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 |
| 5161606 | Interactive electronic thermostat with minimum and maximum temperature thermal limit switches An interactive electronic thermostat operates to communicate with an installer through an audible or visual display and keypad to instruct the installer to perform tasks and enter observations to effect proper connections at the thermostat of heater/air c... | 11/10/1992 |
| 5154226 | Automatic changeover thermostat with single bi-metal and common set lever having individual heat and cool setpoint indicators A single bimetal automatic changeover thermostat has heating, cooling and changeover switches mounted to the bimetal. A single control point adjustment lever for rotating the bimetal has separate shaped heat and cool set point indicators which are movable... | 10/13/1992 |
| 5103896 | Air-conditioning system and operation method thereof An air conditioning for a room of a high-rise building, for example, is carried out in consideration of the difference in temperatures in a central interior zone and a circumferential perimeter zone of the room changeably to heating and cooling in accorda... | 04/14/1992 |
| 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 |
