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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 6991028 | Thermal reservoir for two-pipe hydronic air-conditioning system A thermal reservoir for a two-pipe hydronic air-conditioning system is disclosed. Said thermal reservoir includes a well-insulated tank for alternatively storing hot and cold water. Said thermal reservoir contains plurality of valves for directing hot water stored t... | 01/31/2006 |
| 6945324 | Controlling method for the discharge of coolant medium in the heat exchange wind box The invention relates to a controlling method of the discharge of coolant medium, and more particularly to a controlling method of the discharge of coolant medium in the heat exchange wind box. By mainly controlling the discharge of coolant medium in the heat exchan... | 09/20/2005 |
| 6453992 | Temperature controllable gas distributor The present invention relates to a temperature controllable gas distributor which includes a cover having a first passage between its upper cover and lower cover, a second passage embedded along an edge portion of the upper cover, a first heater installed... | 09/24/2002 |
| 6298677 | Reversible heat pump system A control system for a reversible heat pump includes a system controller which polls the heating or cooling demands of zone controllers associated with a series of heat exchangers downstream of the heat pump. The system controller is operative to configur... | 10/09/2001 |
| 6035932 | Process and apparatus for heating a gas delivered to a membrane gas separator A process and apparatus for heating gas in which a flow rate D0 of a warm fluid is caused in an input line, connected at its upstream portion to a source of warm fluid and at its downstream portion to the inlet of one of the passages of a heat exchanger; ... | 03/14/2000 |
| 5743110 | Unit for distribution and/or collection of cold and/or of heat Unit for distribution and/or collection of cold and/or of heat, including: (a) a main exchanger (1) of heat between a refrigerant fluid (2, 21, 22) and a heat transfer fluid (3); (b) a means for producing cold with a means for heat exchange with the heat ... | 04/28/1998 |
| 5651264 | Flexible process controller A flexible process controller for coordinating the operations of various equipment is disclosed. Briefly stated, in the preferred embodiment of the present invention, various parameters of the sub-systems in a HVAC system are monitored and made alterable ... | 07/29/1997 |
| 5485953 | Method and apparatus for controlling the circulation of heat transfer fluid for thermal conditioning systems for spaces A method and apparatus for controlling the circulation of heat transfer fluid for thermal conditioning systems for spaces, in which the temperatures of several at least partially thermally separate spaces are monitored and averaged, and compared with a pr... | 01/23/1996 |
| 4600144 | Zone control apparatus for central heating and/or cooling systems A zone control apparatus for central heating and/or cooling systems having a central fluid heating and/or cooling plant and conduits for directing the heated or cooled fluid to the rooms in a house or other building being serviced by the system. The zone ... | 07/15/1986 |
| 4515306 | Four-terminal zone thermostat A manually and automatically operable four-terminal zone thermostat for use with automatic damper means when thermostatic means are required to operate fuel control means of a heating/cooling device and motor means rotating said damper means. The thermost... | 05/07/1985 |
| 4487028 | Control for a variable capacity temperature conditioning system A control for a variable capacity reciprocating compressor water chiller system. A microprocessor connected to monitor return and supply fluid temperature sensors in the system is programmed to vary the compressor capacity in response to the deviation of ... | 12/11/1984 |
| 4473107 | Fan/coil induction unit, system, and method A system for heating, cooling, and ventilating a structure having exterior zones adjacent exterior walls and interior zones adjacent the exterior zones and opposite the exterior walls. The system includes for each pair of exterior and interior zones a fir... | 09/25/1984 |
| 4429541 | Apparatus for controlling operation of refrigerator A method of controlling the operation of a refrigerator of a type having a capacity control mechanism adapted to control the capacity of the refrigerator in such a manner as to make the temperature of the cold water supplied to an air conditioner coincide... | 02/07/1984 |
| 4383418 | Circulator pump for conveying a liquid and/or gaseous medium A circulator pump for a plant for the utilization of solar heat including a first heat exchanger for collecting heat at a high level disposed within a solar collector, a medium for receiving heat collected in the first heat exchanger, a second heat exchan... | 05/17/1983 |
| 4335848 | System of central heating A system for improving efficiency and effecting fuel conservation in buildings with multiple units heated by forced hot water from a central gas-fired boiler. Each unit or apartment is provided with a circulator pump in the return water pipe and an associ... | 06/22/1982 |
| 4226364 | Single conduit air conditioning system An improved air conditioning system of the type wherein a conditioned fluid is conveyed from a central plant to a remote location where the fluid exchanges heat prior to being returned to the central plant for reconditioning. The system is provided with s... | 10/07/1980 |
| 4100964 | Induction ventilation system An induction ventilation system for one or more zones. For each zone, the system includes a heat exchanger, a means for driving a heating or cooling liquid through the heat exchanger, an adjustable flow rate primary air injector and a secondary air induct... | 07/18/1978 |
| 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 |
