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| Number | Title | Issue Date |
| 7273071 | Diverter valve for capacity control of a refrigerant absorption cycle driving heat source A control for controlling the amount of heated fluid entering the inlet of the driving heat source for a refrigerant absorption cycle is controlled to vary the relative amount of heated fluid entering the driving heat source inlet, and being dumped to atmosphere. Pr... | 09/25/2007 |
| 7228695 | Heat pump type hot water supply device A heat pump type hot water supplying apparatus includes a hot water reservoir tank (3) and a circulating path (12) for connecting a water intake port (10) formed at the bottom of the hot water reservoir tank (3) and a hot water inlet (... | 06/12/2007 |
| 7036335 | Pneumatically actuated multi-way valve and refrigerating machine with multi-way valve A multi-way valve, in particular for use in the refrigerant circuit of a refrigeration unit, includes a housing with several inlets and outlets and a chamber with several seats that are respectively allocated to one inlet or outlet. A closing member is allocated to ... | 05/02/2006 |
| 7007858 | Compact boiler with tankless heater for providing heat and domestic hot water and method of operation A small and compact boiler for providing hot water for indoor heating and domestic hot water and method of operation are provided. The boiler includes a three way valve configured to circulate boiler water through a heating circuit when indoor heat is required, and ... | 03/07/2006 |
| 6935361 | Pipe, piping system, radiant heating system, and kit A pipe, piping system, kit, and radiant heating system that include lengths of cross-linked polyethylene pipe, which form connections between flow components. Some embodiments utilize a sheath disposed about the outside of the cross-linked polyethylene pipe to enhan... | 08/30/2005 |
| 6712027 | Hot water heating system and connector for use therewith A hot water heating system, coupler and integrated flow system. The hot water heating system includes a first isolator valve, a flow control valve, a circulator and a second isolator valve. Each of these components is equipped with one portion of a connector on one ... | 03/30/2004 |
| 6546898 | Hydronic heating system and kit A hot water heating system, and kit for installing such a system, that utilizes male and female union connections for all main heating system components allows the system to be completely installed using only two ordinary wrenches. The system includes a f... | 04/15/2003 |
| 6102297 | Back-up auto-thermostatic modulating regulator An automatic modulating regulator device and method of operation for use with a non-electrical hot water heat source supplied by a pressurized water supply. The hot water heat source has a hot water circuit to pump hot water to heat exchange elements. The... | 08/15/2000 |
| 6058928 | Liquid heating device A liquid heating device, comprising a pump for pumping a liquid, a convertor for converting of a flow of the liquid, heat exchange a unit, the convertor being formed as a cyclone connected with the pump and having a main spiral passage for a tangential su... | 05/09/2000 |
| 5979782 | Fireplace heat transfer system with internally driven fluid flow mechanism A heat transfer system for use with a conventional fireplace for radiating heat at a remote location from the fireplace. The heat transfer system includes a network of interconnecting conduit sections charged with an internal fluid medium and consists of ... | 11/09/1999 |
| 5975421 | Hot-water heating apparatus A flow-quantity control valve controlling hot-water flow to a heat exchanger and a bypass circuit allowing hot water to bypass the heat exchanger are provided along with a pressure-actuated valve in the bypass circuit which is responsive to a pressure inc... | 11/02/1999 |
| 5692676 | Method and apparatus for saving energy in circulating hot water heating systems A method for automatically adjusting the temperature of the boiler water in a hot water heating system in proportion to changes in the heat demand rate in the space heated by the boiler water wherein the change in heat demand rate is established on the ba... | 12/02/1997 |
| 5588591 | Heat dissipation unit A heating system that allows independent control of the temperatures within different rooms in a building by independently controlling the flow of heating fluid to each room in response to a thermostat provided in each individual room. The output of the t... | 12/31/1996 |
| 5572985 | Recirculating system with by-pass valve A recirculating hot water system comprises a boiler for heating a continuous supply of hot water, a recirculating water line comprising a supply line connected to an outlet of the boiler for conveying water from the boiler to at least one use station and ... | 11/12/1996 |
| 5556027 | Hydronic heating outdoor temperature reset supply water temperature control system A hydronic heating system having a source of hot supply water and a reservoir of cooler return water, a supply water line from the source, a return water line to the reservoir and at least one heating loop through which water flows from the supply line to... | 09/17/1996 |
| 5544645 | Combination water heating and space heating apparatus A combination water heating and space heating apparatus includes a water heating unit and a space heating unit releasably coupled with the water heating unit. The water heating unit has a water storage tank and a helically wound tubular heat exchanger ins... | 08/13/1996 |
| 5443207 | Integrated zoning circulator An integrated wet-rotor zoning circulator for circulating fluid within a zone in a hydronic heating or cooling system. The zoning circulator has three primary components: a motor, an impeller casing, and a controller. The controller, which is integrated w... | 08/22/1995 |
| 5366152 | Heat charging apparatus The heat charging apparatus includes a chair-like frame structure into which a cube-shaped housing is installed about 1 meter from the floor. The housing includes a heat pump, a fan, and other necessary equipment. On its front side the housing is provided... | 11/22/1994 |
| 5248084 | Apparatus and method for controlling the water flow rate from the boiler circuit to the heating circuit in hot water heating systems The volume of water in circulation is controlled by means of a bell-type mixer (4) which has a stationary section disc (6) and a somewhat sickle-shaped rotary distributor bell (7). The section disc has at least three separate passage openings, the first o... | 09/28/1993 |
| 5209401 | Hydronic heating water temperature control valve In a three-way, variable position, automatically controlled diverting valve that is provided in the return line to the boiler of a hydronic heating system between the heating loop return and the boiler return, the valve having its input from the heating l... | 05/11/1993 |
| 5181656 | Water recirculating apparatus An apparatus including a hot water tank directing an outlet conduit into a valve assembly, wherein the valve assembly includes a first and a second outlet conduit directed to a respective water faucet and a bypassing arrangement to the hot water tank resp... | 01/26/1993 |
| 5119988 | Hydronic heating water temperature control system A three-way modulated diverting valve is provided in the return line to the boiler of a hydronic heating system between the heating loop return and the boiler return, the valve having its input from the heating loop return, one output to the boiler return... | 06/09/1992 |
| 5095936 | Bypass valve device, in particular for the fluid circuit associated with a heater A bypass valve device in particular for a fluid circuit, in particular for a liquid circuit associated with a heater, the device being suitable for being interposed between the fluid inlet and outlet tubes or hoses of the heater. The device is constituted... | 03/17/1992 |
| 4976463 | Heating system for vehicle This invention relates to an auxiliary heating system for vehicles which is intended for effective heating of vehicles by installing it together with a pre-existing vehicle heating system. This invention utilizes a modified boiler with an improved burner ... | 12/11/1990 |
| 4907739 | Heating method and apparatus A radiant heating system especially useful for floor heating is provided with a fluid flow apparatus that includes means for pumping a fluid such as water, a temperature-responsive actuator and a valve positionable within a valve housing in response to me... | 03/13/1990 |
| 4898146 | Heating appliance A heating appliance has a burner of the type having full premixing and forced draught and a mixing chamber to which an air supply line and a fuel supply are connected. The mixing chamber has a burner plate which is provided with apertures and which adjoin... | 02/06/1990 |
| 4893749 | Mixer valve for heating installations The invention refers to a mixer valve, particularly for heating and hot water installations, which is integrated into the housing of a circulation pump in such a manner that the wheel-shaped actuator, which is provided with blades, and the running wheel o... | 01/16/1990 |
| 4846617 | Jet pump, in particular for hot-water heating systems with return-flow mixing A jet pump, in particular for hot-water heating systems or water-heating systems with return-flow mixing has a feeder head which is connected with a housing containing the receptor nozzle 13. The housing (7) contains a mixing tube (14) which is connected ... | 07/11/1989 |
| 4667875 | Temperature control arrangement in heating systems This invention regards a control arrangement for heating systems for localities. Heat is given off continuously and the control may take place by changing the temperature (tw) of the heat carrier medium, thereby sensing the interior temperature... | 05/26/1987 |
| 4566628 | Method of and system for controlling the ratio between the water flow rate in the primary circuit and the water flow rate in the secondary circuit of a hot water heating system A method of controlling the ratio between the water flow rates in the primary and secondary circuits of hot water heating systems, particularly of low-temperature hot water heating systems, by mixing flow water with return water passing through an adjusta... | 01/28/1986 |
| 4542849 | Method and apparatus for regulating a heating installation in premises including a plurality of heat generators The present invention relates to a method and to apparatus for regulating a heating installation in a premises comprising a plurality of heating generators. The apparatus comprises temperature probes (10, 20, 140) which are sensitive to the outside temper... | 09/24/1985 |
| 4501232 | Pool or spa water heater A pool or spa water heater comprises: (a) a housing containing a combustion chamber, (b) gas burner means associated with the housing to produce hot products of combustion rising in said chamber, (c) a heat exchanger associated with said chamber in the path of said... | 02/26/1985 |
| 4397418 | Control unit for central heating systems The invention relates to a control unit comprising two bodies, one of which is located in a main fluid-distributing section, such as a hot water heating system. A shunt valve in this main section body provides for shunting the hot water, of a boiler in th... | 08/09/1983 |
| 4394960 | Heating apparatus for a passenger compartment of a motor vehicle A heating apparatus for a passenger compartment of a motor vehicle including a heater is provided with a bypass passage which bypasses an engine water jacket and an engine driven water pump, and a thermostat valve disposed between a feed passage from the ... | 07/26/1983 |
| 4368692 | Wind turbine A wind turbine to convert wind energy into hydraulic energy by a positive displacement hydraulic pump driven by a wind mill. To the oil outlet of the hydraulic pump, a thermo-sensitive control element is attached, which functions when the oil temperature ... | 01/18/1983 |
| 4275709 | System of solar heating by means of fan radiators with fluid circuit and without storage A system of solar heating by means of fan radiators with a fluid circuit and without storage includes solar panels or collectors connected in series. The solar circuit feeds a heat exchanger, the fluid being propelled through the circuit by a pump. The so... | 06/30/1981 |
| 4260103 | Heating system for a railway car for utilizing waste heat from an engine A water cooling loop is connected to cool an engine of a railway car or the like and includes a heat exchanger. A system for heating a compartment includes a pump for pumping water to heating elements. The water from the pump is selectively pumped through... | 04/07/1981 |
| 4249695 | Thermally actuated modulating valve, and assemblies and systems utilizing the same for providing temperature controlled heated water A thermally actuated modulating valve preferably for fail safe energy conservation systems includes a valve body having, a main inlet for cold source water, an outlet for heated water, and a fluid transfer chamber connected for delivering heated water to ... | 02/10/1981 |
| 4243871 | Fluid heating system with storage of electric heat A heating system includes a heat storage tank containing a heat transfer fluid (water) electrically heated to a high temperature. A tube/shell heat exchanger having a pair of fluid flow paths arranged in counter flow relationship is provided for extractio... | 01/06/1981 |
| 4206874 | Heating A heater system comprising a main water discharge and main water return adapted for connection to space or domestic hot water heating means, a main water heater operative for heating water flow therethrough and connected in series with a main pump, and a ... | 06/10/1980 |
