Class 237/63 - Pump

Subclass of Class 237 - Heating systems
Definition: Subject matter having a pump for circulating the water.
No. of patents: 40
Last issue date: 03/11/2008

Number	Title	Issue Date
7341634	Apparatus for and method of processing substrate A workpiece is processed uniformly, e.g., a uniform plated film is formed on a workpiece, by a processing liquid, e.g., a plating solution, which is maintained in an optimum state while minimizing the amount of the processing liquid to be used. An apparatus for proc...	03/11/2008
7066445	Control valve having closely sealing effect A control valve includes a valve seat, a control switch, and at least one leakproof ring. Thus, when the control valve is disposed at a closed state, the water inlet or the water outlet of the valve seat is stopped by the leakproof groove of the control switch and i...	06/27/2006
7044398	Integrated fixture for transferring heat between higher and lower-temperature loops in a hydronic heating system An integrated fixture for transferring heat from a higher-temperature loop to a lower-temperature loop (e.g., in radiant heating, from a heating unit loop to a radiant loop). The fixture provides a heat exchanger for transferring heat from the higher-temperature loo...	05/16/2006
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
6715691	Pressure distribution and regulation in high-rise buildings A multi-stage pressure distribution and pressure regulation system. The system includes at least one heating and cooling load having a supply side and a return side, a heat source supply system for supplying thermo-fluid to the at least one heating and cooling load,...	04/06/2004
6607141	Decentralized pumping system Decentralized centrifugal pumps (62) with variable speed drivers located at cooling or heating coils (74) are utilized to circulate and regulate liquid through the coils, main supply line (42), and main return line (48). Pump speed is controlled to satisf...	08/19/2003
6463999	Multiloop temperature control system A multiloop temperature-control system has a hydraulic bus connected to a plurality of loops for the temperature-control medium and respective hydraulic modules connected to the hydraulic bus, and through the hydraulic bus, to these loops. Plug connectors...	10/15/2002
6431461	Tapered air purging circulator An air purging circulator is provided with a frustoconical reservoir, which promotes separation of dissolved and captured air form the water in a hydronic home heating system, to prevent stalling of the circulator and reduction or elimination of noise ass...	08/13/2002
6427474	Hydraulic supply assembly and installation equipped with same The invention concerns an assembly wherein a tank connects a return orifice to a delivery conduit via pumps. The tank is further connected to a surge tank. The tank is mounted in a steam proof chamber heat-insulated inside but having an air gap separation...	08/06/2002
6390381	Control unit and process for adjusting the heating loops in large area heating systems and to control the adjusted heating loops A control system for the room temperature in large area heating systems comprises a feed-line manifold and a return-line manifold and for each heating loop an electrically activated throttle valve. A control-unit automatically adjusts the throttle degree ...	05/21/2002
6129523	Air purging circulator An air purging circulator is provided with a reservoir on the suction side of an impeller chamber in a circulation pump, to allow circulating water to reduce its velocity, and remove air from the lowest pressure point in the system, the suction side of th...	10/10/2000
5707007	Hydronic heating with continuous circulation supplying multi-temperature heating loops A hydronic heating system having a source of hot supply water and a reservoir of cooler return water, a main hot supply water circulation path (loop) from the supply water line to the return water line including a pump maintaining continuous flow of hot s...	01/13/1998
5695118	Fluid control system A method of operating a fluid control system and a distribution valve thereto. The fluid control system comprises a heat source (1) for a heat medium and several distribution valves (6) for distribution of heat medium to several heat consumers (8). Cold r...	12/09/1997
5617994	Hydronic heating with satellite distribution stations for multi-temperature supply water to heating loops 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 a multitude of heating loops through which water flows to deliver heat, inc...	04/08/1997
5586720	Hot water supply system with a ring pipeline A hot water supply system is provided, which includes a ring pipeline which extends through a water heater and in which water circulates, before going through tap pipelines to taps. The circulation pipelines have a substantially smaller cross-section than...	12/24/1996
5577661	Pool water heating and circulating system A pool heating and circulating system incorporates an internal combustion engine that drives a pump for developing a flow of water. The internal combustion engine has associated therewith an exhaust pipe which is connected to a heat exchanger. An outlet o...	11/26/1996
5524820	Portable water heater unit for field use A portable water heater unit is used to warm a source of ambient temperature water for field use. Warm or hot water is provided for food warming, making hot beverages, showering, and article washing purposes. The unit comprises a housing, a water heater m...	06/11/1996
5425503	Primary-secondary circuit hydraulic interface A primary-secondary circuit hydraulic interface is disclosed for use in chilled water and hot water systems in which a suction manifold header is used to tie in the secondary return water, the primary supply water, and the suction side of the primary and ...	06/20/1995
5022231	Pump optimization A method and apparatus for saving energy in a chilled water air conditioning system employing secondary pumping for supply chilled water and primary pumping for return chilled water wherein the primary pumping is eliminated comprising directing all of sai...	06/11/1991
4479484	Pulsing combustion A pulsing combustion device is disclosed including a combustion chamber with a poppet valve mounted for reciprocation in the combustion chamber. A pressurized combustible mixture is supplied to the poppet valve with the combustion gases ignited in the com...	10/30/1984
4456456	Hot-water heating system having an air eliminator An improved forced-liquid flow, circulatory system for removing gas entrained or dissolved in the liquid. The system includes a circulatory liquid-flow network and means for forcing the liquid to flow through the circulatory network. A by-pass line is sit...	06/26/1984
4446912	Selected segment heating or cooling system A selected segment heating system including: means for heating a fluid; conduit means for conducting the fluid from the outlet to the return inlet of the means for heating through a plurality of areas; means, interconnected with the conduit, for moving th...	05/08/1984
4433810	Hot water heating system In contrast to reducing the temperature of the heat exchange medium or water so as to conserve on fuel consumption in response to an externally located thermostat or the like upon the occurence of favorable ambient weather conditions, said reduction in ac...	02/28/1984
4337891	Electric control device for a central heating boiler An electric control device for a central heating boiler which is provided with a water pump or an air ventilator (6), a burner with an electrically operated shut-off valve (5) and an electric control circuit comprising a supply transformer (1) and a serie...	07/06/1982
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
4274581	Package heat exchanger system for heating and cooling A compact heating and cooling system in which air ducts are connected to a host exchanger system through which a coolant fluid from a condensing unit or a heating fluid from a compact water heater is selectively directed by a control circuit so that the s...	06/23/1981
4257556	Fluid heat transfer system Only a limited number of organic or silicone liquid phase thermal exchange fluid types are suitable for operation over a wide range of hot and cold temperatures and these have an undesirable property of degrading at high temperatures. It is accordingly de...	03/24/1981
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
4213745	Pump for central heating system A pump for a central heating system having a tubular housing and a motor for driving an axial flow impeller which is mounted within the housing, the motor having casing mounted within the tubular housing, forming a liquid flow passage between the outer su...	07/22/1980
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
4175698	Method and apparatus for conservation of energy in a hot water heating system A very well heat insulated water storage or accumulator tank of relatively large capacity as compared to the capacity of the hot water heating unit is interposed between the unit and the radiator system and is interconnected with the unit. Heated water fr...	11/27/1979
4171771	Central heating systems A central heating system comprising a heat exchanger, heat dissipating means, and a connecting piping circuit for liquid flow, has a pump capable of pumping the liquid around the circuit at a lower or a high flow rate, the flow rate of liquid being sensed...	10/23/1979
4139152	Heating system A water filled coil in the rear of a fireplace is connected to a hot water storage tank so that heated water in the coil can circulate into the tank. A second hot water storage tank is connected to the first storage tank and an aquastat associated with th...	02/13/1979
4106692	Heating system with reserve thermal storage capacity A space heating system having a low inertia (low mass and low water content) boiler and a larger heated water storage tank providing a bank of hot water (hereafter called the heat bank) and a "fly-wheel" effect. This provides a thermal bank or load levele...	08/15/1978
4078723	Removal of gas from gas/liquid mixtures A method of removing a gas from a mixture of the gas and a liquid of greater density than the gas comprising introducing the mixture continuously into a hollow body in the form of a jet of the mixture, impinging the jet of the mixture onto a surface withi...	03/14/1978
4046320	Fireplace boiler heating system for hot water type furnaces A water boiler adapted for use in a fireplace is disclosed having an inlet header pipe, an outlet header pipe, and a series of pipes disposed parallel to one another and connected between the inlet and the outlet header pipes. The series of pipes is fashi...	09/06/1977
4019681	Thermal distributing unit A thermal distributing unit for thermal working fluid, primarily for heating and/or air conditioning purposes, comprises a first or thermal supply stand having a main supply connection and a main return connection for the or each thermal working fluid, a ...	04/26/1977
3999598	Water temperature regulator A device for the temperature regulation of water which is used in motor vehicle heating and air conditioning systems. This device contains a primary and a secondary circuit which is linked by a cruciform connector in a hydraulically switchable manner. The...	12/28/1976
3994281	Heat generator of the combustion product condensation type and process for heating a heat-carrying fluid A heat generator of the type condensing the combustion products of a liquid or gaseous hydrogen fuel suitable for the heating of a heat-bearing fluid, including a tank containing at the top a zone of direct contact between the heat-bearing fluid and the c...	11/30/1976

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Class 237/63 - Pump