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| Number | Title | Issue Date |
| 7210995 | Roof air make-up for exhaust of fire smoke A system for introducing make-up air into a building from above the roof for smoke control includes air shafts extending from the roof into a space in the building below a layer of smoke. The air shafts can be rigid or can be made of a flexible material which folds ... | 05/01/2007 |
| 6976337 | Energy-saving housing The invention provides energy-saving housing wherein the indoor temperature condition can be made comfortable throughout the year by a small amount of energy by suppressing loads on cooling and heating devices, and high airtightness and high heat insulation performa... | 12/20/2005 |
| 6729551 | Fireplace make-up air heat exchange system The need to maintain the quality of air in a home has become more of a problem in new high efficiency tight houses so that governmental regulations are being proposed for a minimum change of fresh air. If too much cold outside fresh air is introduced into such homes... | 05/04/2004 |
| 6550687 | Heat exchange system A heat exchange system and method for heating outside air provided to a structure are disclosed. The system uses and recovers heat from waste products that are being exhausted from the structure. A heated products source generates heated waste products as... | 04/22/2003 |
| 6543698 | Fireplace make-up air heat exchange system The need to maintain the quality of air in a home has become more of a problem in new high efficiency tight houses so that governmental regulations are being proposed for a minimum change of fresh air. If too much cold outside fresh air is introduced into... | 04/08/2003 |
| 6508409 | Heat producing system for a building A heat producing system for a building including a cylindrical housing having a closed upper end, a closed lower end, a cylindrical side wall therebetween, and a hollow interior. The closed upper end has an opening therethrough exposing the hollow interio... | 01/21/2003 |
| 6047695 | Fireplace heat exchanger For use with a fireplace, a heat exchanger mounted across the top portion of the fireplace with the heat exchanger comprising a heat exchanger core with four identical extruded core sections connected together around an inner spin chamber for the passage ... | 04/11/2000 |
| 5855320 | Combined furnace and heat recovery system The present invention relates to a combined furnace and air recovery system. The system is comprised of a furnace housing having an inlet opening for connection to a cold air return duct and an outlet opening connected to a heating duct. A negative pressu... | 01/05/1999 |
| 5139011 | Unvented gas-fired heater An unvented gas-fired heater assembly including a base having a gas burner mounted thereon in a combustion area. Gas logs are disposed in the combustion area for heating by the gas burner. A duct assembly is provided which directs heated air from the heat... | 08/18/1992 |
| 5092518 | Hot-air type heater Provided is a hot-air type heater including a heat generating means such as a burner heater from which hot air is produced and blown out the heater into a living room so as to warm up the inside of the room with a uniform temperature distribution even amo... | 03/03/1992 |
| 5038751 | Direct fired unit heater The present invention is a direct fired unit heater which includes a lower combustion chamber which communicates with an upper fan assembly which mixes combustion products with ambient air and discharges this laterally from the unit. The fan assembly has ... | 08/13/1991 |
| 4981263 | Paint booth thermal reclamation system for space heating A paint spray and bake booth has an air heating and circulating system with two blowers and a combination of dampers and ducts which provide different air circulating circuits for the spraying and baking steps. A gas fired furnace with heat exchanging sys... | 01/01/1991 |
| 4928667 | Gas fire heating unit A gas fire space heater which can be an insert for an existing fireplace or a free standing unit is described. The device consists of a gas burner with radiants disposed within a housing. The products of combustion are collected in a first plenum, directe... | 05/29/1990 |
| 4828170 | Heating apparatus for heating confined spaces, particularly apparatus for heating the passenger compartments of an automotive vehicle and the like The invention relates to heating apparatus for heating confined spaces, and particularly for heating passenger compartments in automotive vehicles and the like. The heating apparatus comprises a combustion device having means for supplying and mixing fuel... | 05/09/1989 |
| 4798327 | Convection lock-vent A device for the redistribution of warm air within a building is provided. A device comprises a warm air collecting means which effectively collects warm air to be redistributed throughout the building and which can be disabled in an asthetically pleasing... | 01/17/1989 |
| 4766878 | Far-infrared radiating system In a far-infrared radiating system, a plurality of radiating units for allowing the combustion gas to pass therethrough are connected in series to form a multi-stage series-connecting construction. The combustion gas releases its heat energy in the form o... | 08/30/1988 |
| 4750673 | Fan apparatus for heating and circulating air A fan apparatus for heating and circulating a large volume of relatively low temperature air in a room space includes a circular base plate (1), a centrally mounted motor driven fan (3), (4), and an annular heating coil (2) upstanding from the base plate ... | 06/14/1988 |
| 4741391 | Method and apparatus for recovering of transmitted heat A body, such as a building to be heated or cooled, is surrounded by a wall structure forming two hollow spaces arranged in parallel to each other. An outer hollow space is connected to the atmosphere so that outside air can flow into the outer hollow spac... | 05/03/1988 |
| 4669656 | Heating system An improved heating system is disclosed for providing heated air to a heated space, preferably using a gaseous fuel as the energy source. The system preferably includes an air heating sub-system, a compact combustion chamber, a separate cold air supply su... | 06/02/1987 |
| 4606399 | Heat recovery system with combustion gas accelerator A system is disclosed for recovering heat from high temperature combustion gases escaping from a heater such as for examples a domestic warm air furnace, boiler or the like. The system includes a first conduit leading to a chimney and a second conduit lea... | 08/19/1986 |
| 4572429 | Method and means for conserving energy requirements and improving working conditions of a sock finishing factory The energy requirements of a sock finishing factory consisting at least of a dye house, boarding room and a warehouse are greatly reduced and the working conditions of employees are improved by utilizing waste heat from the boarding room to provide heat f... | 02/25/1986 |
| 4561421 | High efficiency furnace Disclosed is a dwelling furnace having at least one clam-shell type primary heat exchanger in parallel orientation with a secondary heat exchanger, both the primary and secondary heat exchangers being vertically oriented relative to a furnace housing and ... | 12/31/1985 |
| 4537117 | Fresh air device for mobile home or other dwelling A fresh air device is provided for a mobile home or other dwelling which has an attic and a furnace with an air blower for supplying conditioned air to the dwelling. The fresh air device includes a fresh air blower for supplying fresh, outside air to an a... | 08/27/1985 |
| 4526319 | Local heating installation A heating installation for local use is disclosed which is to be operated by aggregate fuel having both direct and indirect thermal emission, with a reactor receiving the combustion chamber, and a waste-heat flue above the reactor as well as an outer heat... | 07/02/1985 |
| 4520740 | Combustion and heating equipment Combustion and heating equipment includes a body with an underfeed stoker located in the lower part thereof. A jacket surrounds the body to define a heating space, different parts of which are interconnected by triangular ducts disposed in the gas pass. A... | 06/04/1985 |
| 4504011 | Air conditioning system for poultry houses An air conditioning system for a poultry house. Plenum structure extends substantially the entire length of the poultry house. A forced-air heating unit is coupled to the plenum structure by flexible conduit. The heated air is controlled by slidable adjus... | 03/12/1985 |
| 4473060 | Energy efficient heating system An energy efficient heating system for utilizing non-petroleum based fuels capable of obtained incremetalized burn rates and fully automated control whereupon the beneficial utilization of heat produced thereby is maximized and the waste of heat is signif... | 09/25/1984 |
| 4440342 | Heat dispersing thermal barrier A heat dispersing thermal barrier, adapted for installation in close proximity to a free-standing heating device, comprising a vertically disposed, heat resistant room confronting wall panel, adapted to be spaced apart from the room wall by extensions to ... | 04/03/1984 |
| 4412652 | Economizer for building heating systems An economizer is provided for building heating systems and the like, of the type having a forced air furnace with adjacent combustion and heat exchange chambers, and a hot water reservoir or heater. The economizer comprises lower and upper heat transfer c... | 11/01/1983 |
| 4403732 | Energy saving heat recycling system An energy saving heat recycling system for circulating hot air from the upper portion of a building, near the roof, to the lower portion of the building, near the floor level, to reuse the hot air to heat the lower portion of the building, such system com... | 09/13/1983 |
| 4351476 | Air filtering system and method of operation An air filtering unit for blowing only filtered air into a room of a building having a central air conditioning air duct outlet therein, includes an electric blower unit having an air inlet and an air outlet. An air guide system conducts all air flowing t... | 09/28/1982 |
| 4324359 | Heat reclaiming system This heat reclaiming system consists primarily of an insulated duct with an inlet grille in the ceiling of a room, in which is a heating source. It further includes a blower, intermediate with a second duct, which is secured to an outlet duct in an adjace... | 04/13/1982 |
| 4194558 | Waste heat recovery device A waste heat recovery device particularly usable for heating the air traveling through a cold air return duct to a hot air gas heating furnace which includes an exhaust box securable to the wall of the furnace and adapted to receive exhaust gases therein ... | 03/25/1980 |
| 4138985 | Portable heating and cooking stove A fire box is provided having upstanding peripheral walls and bottom and top walls. The fire box includes draft air inlet structure opening through the bottom wall thereof and flue gas outlet structure opening upwardly through the top wall thereof. The lo... | 02/13/1979 |
| 4103826 | Heat exchanger for a freestanding heating unit A heat exchanger with a tubular body having helical ribs about its periphery constituting expanded interior and exterior conductive heating surfaces. A clamp is captively held to the tubular body for mounting the heat exchanger to the exhaust duct of a fr... | 08/01/1978 |
| 4103598 | Wall structure A wall structure is described and incorporates an air outlet unit for a forced air circulation system. The structure includes vertical posts which define at least two adjacent wall sections. The air outlet unit is built into one of the wall sections and c... | 08/01/1978 |
| 3997108 | Automatic air flow control An automatic air flow control system for a solar heating installation wherein thermostatically controlled dampers are associated with such solar heating elements as the collector and the storage area, and with the rooms to be heated, the thermostats being... | 12/14/1976 |
| 3949522 | Greenhouse A greenhouse is disclosed in which tubular curved members formed of standard unit lengths are used to form arched rafters while the same tubular members in uncurved form are used to form purlins. The tubular members are connected by suitable clamps to for... | 04/13/1976 |
