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| Number | Title | Issue Date |
| 4421268 | Integrated control system using a microprocessor An integrated control system for a temperature conditioning apparatus which contains a microprocessor which is connected to the various components of a control system of the temperature conditioning apparatus such as the space thermostat, the fuel valve, ... | 12/20/1983 |
| 4417688 | Temperature control system for vehicle passenger compartment The heat exchanger of the temperature control system for a vehicle passenger compartment exchanges heat with air entering the passenger compartment. The flow of heat-exchange medium through the heat exchanger is controllable for controlling passenger-comp... | 11/29/1983 |
| 4410131 | Heating and air conditioning system A heating system for an inhabitable enclosure having a first heating system that maintains a first temperature in the absence of persons in the enclosure and a second heating system that maintains a second elevated temperature using outside fresh air with... | 10/18/1983 |
| 4401261 | Flue gas heat recovery apparatus A flue gas heat recovery apparatus is employed with a system of appliances such as a gas furnace and hot water heater, each having separate exhaust gas flues. The apparatus includes a gas-to-liquid heat exchanger in thermal communication with the two flue... | 08/30/1983 |
| 4383640 | Heat control device for a wood or coal burning stove A heat control device for a stove which burns solid fuel and in which the heat output of fuel combustion is regulated in order to control within preselected temperature ranges the temperature of the combustion chamber of the stove and the ambient air temp... | 05/17/1983 |
| 4382543 | Acoustic control for zone heat control system Thermostatically controlled valves and acoustic transducers are energized by thermostats in individual zoned heated areas of a structure. The thermostatic valves or dampers permit heated fluid to convey heat to their respective zoned heated areas and the ... | 05/10/1983 |
| 4373662 | Integrated control system using a microprocessor An integrated control system for a temperature conditioning apparatus which contains a microprocessor which is connected to the various components of a control system of the temperature conditioning apparatus such as the space thermostat, the fuel valve, ... | 02/15/1983 |
| 4337893 | Multi-phase modular comfort controlled heating system A circulating fluid that is heated by a number of gas-fired burner assemblies is used to heat a space either through a hot water system or a forced air heating system. Each burner assembly includes a housing with a heat exchanger mounted therein and a gas... | 07/06/1982 |
| 4308990 | Flue gas heat recovery system A flue gas heat recovery system includes a heat exchanger fluidly interposed between a furnace and a chimney to receive hot flue gas from the furnace. The heat exchanger is releasably mounted in the chimney and includes a partition which forces air being ... | 01/05/1982 |
| 4240579 | Thermostatically controlled heating system Efficiency of domestic heating systems is improved by a flue temperature responsive switch for intermittently shutting down the burner when temperature conditions are such as would cause extended operation of the burner in the absence of the switch. The t... | 12/23/1980 |
| 4132353 | Window heaters A thermostat controlled window furnace for heating a room features a construction wherein the air required for its operation is comprised on the one hand of outside air used solely for combustion purposes, to service a heat transfer component, and on the ... | 01/02/1979 |
| 4079885 | Apparatus and method of utilizing waste heat from furnace combustion This invention pertains to apparatus and a method for utilizing waste heat as produced in furnaces, particularly boilers. This apparatus and method is equally useful in hot air furnaces. After heating the water or air the heat that passes into the plenum ... | 03/21/1978 |
