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| Number | Title | Issue Date |
| 7364094 | Method and apparatus for controlling space conditioning in an occupied space Techniques for controlling air conditioning and transfer air in an occupied space are described. The example of a commercial restaurant is provided. Features of model based control and integration of load predictors is also described. ... | 04/29/2008 |
| 7204158 | Flow control apparatus and method with internally isothermal control volume for flow verification An internally isothermal control volume of a flow verification system for measuring gas pressure drop relative to time to calculate flow rate has a thermal reservoir provided therein. The thermal reservoir is de-coupled from ambient effects so that the temperature o... | 04/17/2007 |
| 7155318 | Air conditioning unit control to reduce moisture varying operations In a method of operating an air conditioning unit to reduce moisture varying operations, psychrometric chart data is accessed. In addition, a constraint is set on the relationship between the temperature of air supplied by the air conditioning unit and the relative ... | 12/26/2006 |
| 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 |
| 7036330 | Free cooling activation optimized controls A method for optimizing free cooling activation comprising the steps of operating an air conditioning unit in a chiller mode, determining a building load, determining a free cooler maximum available capacity (FreeCapM), and activating a free cooling mode of the air ... | 05/02/2006 |
| 6789618 | Energy recycling air handling system An air handling system including at least one terminal unit for maintaining a serviced volume at a predetermined temperature below the temperature of the air supplied by the central source of the air handling system is provided through the use of a refrigerant means... | 09/14/2004 |
| 6319115 | Air cycle houses and house ventilation system An indoor space is externally enclosed and thermally insulated by an underfloor insulating layer, a wall insulating layer and a ceiling insulating layer. An underfloor ventilation layer is defined between a floor and the underfloor insulating layer, and a... | 11/20/2001 |
| 6145752 | Temperature monitoring and control system This invention generally relates to a thermostat system for use in thermal regulation of an environment. This invention involves thermal regulation systems for controlling the temperature of an environment and the thermostat systems used in thermal regula... | 11/14/2000 |
| 5573058 | Air-conditioning installation for room spaces Air-conditioning installation for room spaces (1), comprising a heat transfer device (4) for preheating supply air (A) by transferring heat from exhaust air (B) into the supply air; heating means including a heating source (11) for further heating the sup... | 11/12/1996 |
| 5197668 | Communicating thermostat A thermostat which includes a transceiver for receiving and sending communications externally of the thermostat. A thermostat receiving external communications from another thermostat includes an external temperature responsive portion to modify the setpo... | 03/30/1993 |
| 4928751 | Computer controlled waste heat reclaimer A waste heat reclaimer takes in hot waste gases from stacks or flues, associates them with a primary flow of water, heating the water and cooling the gases. The heated water flows through a heat exchanger transferring that heat to a secondary flow of wate... | 05/29/1990 |
| 4782888 | Community thermal energy exchange system A system of interconnecting a plurality of users of low grade thermal energy exchange has a number of users which are heat sources and a number of users which are heat sinks to balance heat flux. Heat is exchanged between a nontoxic primary heat transfer ... | 11/08/1988 |
| 4300623 | Integrated multi-duct dual-stage dual-cooling media air conditioning system A multi-duct air conditioning system integrating ventilation, humidity control, filtering, chilling and heating, and distribution of liquids, embodied in a combination of means operating at peak efficiency under varied conditions, characterized by a dual-... | 11/17/1981 |
| 4295519 | Heat reclaimer A heat reclaimer for the exhaust flue of a heating unit comprising, a housing having an air input space, an air output space, and an exhaust space, with a plurality of tubes connected between and communicating the air input space with the air output space... | 10/20/1981 |
| 4285390 | Method of and apparatus for supplying treated air to spaces having different cooling requirements Fresh, outside air may be supplied to a first space, such as a dining area of a restaurant or the like, while air from the first space may be recirculated through an air conditioning unit for cooling or heating the air, which is returned to the first spac... | 08/25/1981 |
| 4182401 | Supplemental heating and cooling system In a building an automatically controlled supplemental duct system causes circulation of warm air from the attic space during the heating season and cool air from the basement space during the cooling season when favorable temperature differences exist be... | 01/08/1980 |
| 4008756 | Apparatus for air conditioning employing variable terminal box A heating and air conditioning system and a special variable volume terminal box associated therewith, the system utilizing energy dissipated by the lighting and other building facilities in a controlled manner through the functioning of the variable volu... | 02/22/1977 |
| 3949808 | Air conditioning apparatus The present invention pertains to an air processing system for an enclosed area that includes a plenum, an air processing unit communicating with the plenum and responsive to a temperature sensing means, air-passing light fixtures for lighting the enclose... | 04/13/1976 |
| 3949809 | Air processing apparatus The present invention pertains to an air processing system for an enclosed area having a plenum. The system includes an air processing means in communication with the plenum and responsive to a temperature sensing means, air-passing light fixtures for lig... | 04/13/1976 |
| 3945432 | Air conditioning method and system A method and system of air conditioning multi-storey buildings having a plurality of floors to be conditioned wherein at least one compartment air handling unit on each floor is contained within a fan closet. Fresh air conditioning means is located remote... | 03/23/1976 |
| 3935898 | Device for air-conditioning a number of rooms the heat requirements of which are different and vary preferably with respect to time A system for air-conditioning an installation having a number of rooms, the heat requirements of which are different and vary preferably with respect to time, which rooms are connected to a central air-conditioning unit. Light fixtures producing radiation... | 02/03/1976 |
