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| Number | Title | Issue Date |
| 7832465 | Affordable and easy to install multi-zone HVAC system The present invention is directed to a multiple zone climate control system which includes a HVAC unit that supplies conditioned air to more than one zone, a zone controller in each zone, a central controller, one or more air flow rate regulating devices in each zon... | 11/16/2010 |
| 7360370 | Method of verifying proper installation of a zoned HVAC system A method and control is provided wherein the sensors in a plurality of zones are properly associated with the dampers associated for each of the zones after installation. A technician goes to each zone and sends a signal from the sensor, and the control then makes a... | 04/22/2008 |
| 7334632 | Variable volumetric flow heat exchanger for an air-to-air heat recovery system A variable volumetric flow heat exchanger for a building air-to-air heat recovery system that is operable at a high volumetric flow rate and at a low volumetric flow rate. The heat exchanger includes multiple heat exchange banks, including at least one continuous du... | 02/26/2008 |
| 7320362 | Dynamic fluid delivery system with compensation Flow is managed within a fluid delivery system. One illustrative fluid delivery system is a zoned HVAC system. In one illustrative embodiment, a method is provided for controlling the airflow and thus the heat or cool delivery rate to a room serviced by the zoned HV... | 01/22/2008 |
| 7315448 | Air-cooled heat generating device airflow control system A system for controlling airflow around an air-cooled heat generating device includes a cooling fluid line and heat exchangers positioned along the cooling fluid line to cool airflow around components in the heat generating device. The heat exchangers are positioned... | 01/01/2008 |
| 7278475 | Control arrangement for cooling power electronic components A control arrangement (10) comprises a first selectable controller (12) for controlling an action, and a second selectable controller (14) for controlling the action. The arrangement also includes a selector (22) for selecting one of the ... | 10/09/2007 |
| 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 |
| 7188779 | Zone climate control A zone climate control system and method of its operation. A zone can be a single room. A method for determining which zones' vents are to be closed, and which are to be opened, in performing heating or cooling, circulation to heat or cool a zone by mixing its air w... | 03/13/2007 |
| 7174239 | Retrieving diagnostic information from an HVAC component A control is provided for controlling the operation of a climate control system, which includes a processor that is capable of receiving power from a low voltage power supply adapted to be connected to an external alternating current power source, or a second extern... | 02/06/2007 |
| 7086459 | Method and apparatus for individually cooling components of electronic systems A cooling system is configured to supply individually metered amounts of cooling fluid to heat generating components, e.g., processors, micro-controllers, high speed video cards, disk drives, semi-conductor devices, and the like, of an electronic system. The cooling... | 08/08/2006 |
| 7080684 | Mold temperature control unit A mold temperature control unit with which piping connection for supply and drain of cooling water in unit setup can be extremely simply made. In a mold temperature control unit 1 which unit body 2 comprises a plurality of cooling water systems perform... | 07/25/2006 |
| 7059400 | Dual-compartment ventilation and air-conditioning system having a shared heating coil An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycle... | 06/13/2006 |
| 7055759 | PDA configuration of thermostats A device and method that may be used at nearly any place to set and adjust a control system such as a thermostat, controller or computer having numerous parameters and options that may be selected for desired operation of an air management system. One may remotely, ... | 06/06/2006 |
| 7054721 | Computer fan efficiency feedback system and method A computer fan efficiency feedback system and method are presented. In one embodiment, an indication electronic components are operating is received. A cooling system is directed to provide air flow to the electronic components. In one exemplary implementation the c... | 05/30/2006 |
| 7036743 | Continuous fan control in a multi-zone HVAC system A multi-zoned HVAC system includes a control for independently determining the amount of airflow delivered to each zone within the HVAC system. The control determines nominal zone airflow and continuous fan airflow levels for each zone based upon a user selected fan... | 05/02/2006 |
| 7028768 | Fluid heat exchange control system A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchang... | 04/18/2006 |
| 7017827 | Method and system for automatically optimizing zone duct damper positions A control is functional to perform a method of determining a maximum desired airflow for each of a plurality of zones in a multi-zone HVAC system, and an expected airflow to those zones. In part, these determinations are based upon an algorithm that calculates the r... | 03/28/2006 |
| 7014124 | Automated air flow system and method The disclosed embodiments provide and automated air flow system and method. An automated register is coupled to at least one sensor for providing data associated with a structure. The automated register is configured to automatically provide air flow into the struct... | 03/21/2006 |
| 6994158 | Multi-load thermal regulating system having electronic valve control System and method for reducing temperature variation among components in a multi-component system. In this respect, component temperatures are controlled to remain relatively constant (approximately within 5° C.) with respect to other components, while allowing for... | 02/07/2006 |
| 6978634 | Separately air-conditionable vehicle air conditioning apparatus A vehicle air conditioning apparatus has discharging openings, each of which is disposed near a corresponding one of passenger seats. Accordingly, air discharged from air outlets does not flow so as to concentrate on one discharging opening and instead flows toward ... | 12/27/2005 |
| 6964174 | Method and system for determining relative duct sizes by zone in an HVAC system A control and method are disclosed to determine the relative duct sizes of a plurality of ducts leading to a plurality of zones in a multi-zone HVAC system. In a disclosed method, the dampers leading to each of the zones are operated such that one damper is held mor... | 11/15/2005 |
| 6951998 | Controller, temperature regulator and heat treatment apparatus A plurality of individually corresponding heaters and temperature sensors are provided along with a plurality of a PID control means. An average temperature/gradient temperature calculating means calculates the average temperatures of the temperatures measured by th... | 10/04/2005 |
| 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 |
| 6865449 | Location adjusted HVAC control A system and method allows occupants in various locations to provide indications as to their respective levels of comfort. The indications as to comfort level are provided to a network computer. The network computer is operative to compute overall levels of comfort ... | 03/08/2005 |
| 6628997 | Method for programming a thermostat A method for programming a thermostat, comprising the steps of providing a thermostat programmed to convert programming codes into time-temperature schedules; determining a desired time-temperature schedule; developing a programming code corresponding to ... | 09/30/2003 |
| 6415617 | Model based economizer control of an air handling unit A strategy for controlling an air side economizer of an HVAC system uses a model of the airflow through the system to estimate the load in two modes when minimum and maximum amounts of outdoor air are being introduced into the building. Transitions betwee... | 07/09/2002 |
| 6397943 | Thermostatic coolant circulating device A thermostatic coolant circulating device includes a supply circuit for circulating a coolant to a load and a cooling circuit for cooling the coolant from a temperature to which the coolant was raised by cooling the load. The supply circuit includes a tan... | 06/04/2002 |
| 6389826 | High capacity air conditioning system with redundant staged recirculation air mixing for an aircraft In an air conditioning system for an aircraft, two pre-mixing units respectively mix cold air from two air conditioning units with recirculated fuselage interior air from two recirculation units, to prepare two pre-mixed air flows that are both directed i... | 05/21/2002 |
| 6386280 | Thermostatic coolant circulating device A coolant circuit 21 for circulating a coolant to a load 20 includes a temperature sensor 35 that measures the temperature of the coolant sent out from a heat exchanger 25. A refrigerating circuit 22 in which the aforesaid coolant has its temperature rais... | 05/14/2002 |
| 6304803 | HVAC control system for an automobile A heating, ventilation, and air conditioning system for a vehicle including a front HVAC control system that communicates with a rear HVAC control system. The rear HVAC control system includes a control panel having mode, temperature, and blower speed con... | 10/16/2001 |
| 6213404 | Remote temperature sensing transmitting and programmable thermostat system The present invention is a system of wireless, battery operated temperature sensing devices which transmit ambient or other sensed temperature information to a programmable thermostat. The compact construction and multi-level programming of the temperatur... | 04/10/2001 |
| 6175782 | System and method for adjusting climate control in vehicles In a multimedia information and control system for use in an automobile, at least one interface is employed which enables a user to access information concerning the automobile and control vehicle functions in an efficient manner. The user may select one ... | 01/16/2001 |
| 6109531 | High reliability heating system A high reliability heating system that includes dual furnace control mechanisms wherein each furnace control mechanism includes blowers and control elements and each is independently operable to control the operation of a shared furnace burner unit and he... | 08/29/2000 |
| 6070110 | Humidity control thermostat and method for an air conditioning system An air conditioner or heat pump system is equipped with a thermostat control which includes a temperature sensor and a humidity sensor and an algorithm to control the low voltage signals to the indoor blower section and the compressor to control operation... | 05/30/2000 |
| 6009939 | Distributed air conditioning system In a distributed air conditioning system capable of controlling cooling or heating by means of a substitute temperature detector when the room temperature detector of a room to be air conditioned is abnormal, room temperatures detected by the temperature ... | 01/04/2000 |
| 5927599 | Wireless air conditioning control system A wireless air conditioning control system is provided. A thermostat assembly measures ambient temperature in an area to which an air conditioning system provides conditioned air. It compares the measured ambient temperature with a predetermined target te... | 07/27/1999 |
| 5853123 | Signal transmission/reception device of air conditioner A signal transmission/reception device of an air conditioner is provided with a plurality of control groups (8A, 8B, . . . ). The control groups (8A, 8B, . . . ) are each composed so that an outdoor control unit (5) and an indoor control unit (6) are conn... | 12/29/1998 |
| 5814902 | System and process for control of energy use by direct observation of occupancy A system and process for control of energy use in a rented room based on direct occupancy observation. The system is designed to control up to 100% of the power usage. The system includes: a power supply; occupancy sensors; a thermostat responsive to a pr... | 09/29/1998 |
| 5787321 | Temperature controlling device for fixing unit A temperature controlling device for an electrophotographic imaging device which has a fixing unit including a heat roller, the fixing unit performing a fixing operation in which toner is fixed on a recording sheet. The temperature controlling device incl... | 07/28/1998 |
| 5762265 | Air-conditioning control unit Complaint rate calculation means for calculating complaint rates in consideration of thermal feeling entered from vote value input means, a data storage unit for storing complaint rates together with indoor thermal conditions, updating means for calculati... | 06/09/1998 |
