Class 237/66 - Expansion tanks

Subclass of Class 237 - Heating systems
Definition: Tanks or chambers limited in use to provide for the expansion
No. of patents: 38
Last issue date: 04/29/2008

Number	Title	Issue Date
7364609	Method and kit for use with standard pipe couplings to construct a de-aerator A kit for constructing a de-aerator for a fluid distribution system includes a gas concentrator adapted to be received in chamber of a T-coupling provided with the kit. A cap is provided that closes a cap connector integrally formed with the T-coupling. The cap supp...	04/29/2008
6739517	Non-circulating tank and kit for use with liquid heating unit A tank for use with a liquid heating vessel of a hydronic radiant heating system to assist in the simultaneous sealing and venting of air from the system where the heating vessel has a flue for release of exhaust, the tank including a liquid holder that is exposed t...	05/25/2004
6557774	Non-pressurized space heating system and apparatus A non-pressurized hydronic space heating system for circulating heated fluid through coils placed within a dwelling or structure. The system includes a heat tank for heating liquid, and piping connected to the heat tank for receiving the heated liquid and...	05/06/2003
6526921	Method for operating a closed hot-water installation and apparatus to be used therewith Method and apparatus for operating a closed hot water installation provided with a pipe system, a boiler, heat exchangers, an expansion tank, a water make-up provision and a de-aerator, the method including the steps of opening a non-return valve to allow...	03/04/2003
6119951	Expansion control for a closed fluid circulation system A method for expansion control in a closed fluid circulation system with varying temperature, in which system air is drawn from the circulating fluid through the formation of an air head wherein air to be withdrawn is collected and from which air can be b...	09/19/2000
6041820	Service and heating water combined expansion tank Expansion tank (10) for receiving volume changes caused by temperature fluctuations in service and heating water systems (28, 29), comprising a tank (11, 11a) divided by a diaphragm (16, 22) into a pressurized gas compartment (19, 24) and a water compartm...	03/28/2000
5964215	Heating installation with closed liquid circuit The invention relates to a heating installation comprising a closed liquid circuit which is under pressure during operation, in which are incorporated a heating boiler in which heat is supplied to a liquid circulating in the circuit and heat-generating me...	10/12/1999
5829677	Water heating and cooling system having a dual water mixing and air separator apparatus An improved closed loop variable volume water heating or cooling system having one or more work units for supplying heated or cooling water to a heating or cooling system which includes a dual purpose water mixing and air separator vessel. This vessel inc...	11/03/1998
5738277	Water heating and cooling system having a dual water mixing and air separator apparatus An improved closed loop variable volume water heating or cooling system having one or more work units for supplying heated or cooling water to a heating or cooling system which includes a dual purpose water mixing and air separator vessel. This vessel inc...	04/14/1998
5671773	Automatic fluid-supply apparatus for a boiler system An automatic fluid-supply apparatus for a boiler system automatically controls an amount of fluid being supplied to a fluid tank of the boiler system. The automatic fluid-supply apparatus is provided with a flux detecting portion which comprises a rotor a...	09/30/1997
5456409	Method and device for maintaining a fluid at a working pressure in a substantially closed fluid circulation system A method and device for maintaining a fluid at a working pressure in a substantially closed fluid circulation system wherein the temperature of the fluid can vary and which is preferably deaerated continuously. The maintenance of a working pressure is rea...	10/10/1995
5344071	Expansion tank airation device A method for purging water from flooded expansion tanks without necessitating the complete drainage and subsequent refilling of the systems allows for a stabilized hydronic water system in much less time with less effort and expense....	09/06/1994
5244037	Closed loop ground source pressurized system for a heat pump A closed loop, pressurized system for a ground source heat pump and a pressure/liquid source module therefore. The pressure/liquid source module has a liquid tank having a predetermined liquid level and an inlet pipe extending downwardly within the tank f...	09/14/1993
5007583	Device for accomodating expansion in fluid circulation systems Device for expansion transfer in liquid cycle systems, in particular for heating installations, comprising a heating boiler (1), a liquid line (2, 2'), radiators (3) and an expansion vessel (4) at atmospheric pressure. The expansion vessel (4) is connecte...	04/16/1991
4909312	Interface equipment between a heat pump and a buried heat exchanger An interface assembly between a heat pump and an elongated ground heat exchanger. First and second valve means are connected to opposed end portions of the ground heat exchanger. A conduit of a coolant-to-heat transfer liquid heat exchanger in the heat pu...	03/20/1990
4733721	Apparatus and method for heating a fluid A method and apparatus for supplying a heated fluid to a heat consumption circuit, such as an injection mold. The apparatus comprises a heat exchanger, for heating the fluid, a pump for pumping the heated fluid to the heat consumption circuit, a reservoir...	03/29/1988
4732319	Fill valve for a water heating system A fill valve for a water heating system. An expansion tank is provided with a flexible diaphragm which divides the tank into a water chamber and a closed gas chamber. A fill valve assembly is mounted within an opening in the tank and includes a valve body...	03/22/1988
4723705	Device for ventilating a closed conduit system A ventilating device for a closed conduit system comprising a housing (7) with a liquid throughflow conduit (11) extending through end walls (8,9) of the housing. The throughflow conduit (11) has a liquid permeable part (13) which is directed towards an u...	02/09/1988
4718922	Method of and apparatus for the deaeration of liquid flowing in a closed circulation system The liquid flowing through a heat circulation system including a boiler can be maintained in an air absorbing condition even at the highest elevation in the circulation system. The air absorbing condition is attained by alternately subjecting the liquid i...	01/12/1988
4516563	Heating device Disclosed is a heating device of assembled cast panel construction with flanges joined together and whose front, side, back and top walls and bottom grates define a combustion chamber. The angled side walls define an obtuse interior angle and the side and...	05/14/1985
4479605	Heating system A system for generating, storing and releasing heat comprises a tank surrounding a reservoir for holding a heat transfer fluid, heat releasing means in fluid communication with the reservoir for controllably releasing heat from the fluid to an object or s...	10/30/1984
4471907	Venturi pressurizer for incompressible-liquid circulating systems A closed-loop, incompressible-liquid circulating, hydronic heating system, for instance, a hot water heating system, which utilizes a Venturi-type control device to effect communication between the circulating hydronic heating system and a storage tank. T...	09/18/1984
4456172	Method of and apparatus for the degasification of circulation systems for liquids In a closed circulation system containing a constant amount of liquid, a force is generated for driving the liquid through the system. A branch line extends from the circulation line of the system at a point adjacent to and closely downstream from the loc...	06/26/1984
4408716	Flue gas heat recovery system A flue gas heat recovery system for use in conjunction with a forced hot air furnace, such system having two conventional heat exchangers, one located in the flue leading from the combustion chamber of the furnace to the chimney, and the other in the cold...	10/11/1983
4383643	Boiler tank for efficiently circulating low-temperature water A boiler tank (1) for a hot-water heating system comprises first (2) and second (7) partitions, defining first (4), second (9), and third (10) chambers. Inlet (6) and outlet (6') pipes communicate with the second chamber, a transfer conduit (3) intercommu...	05/17/1983
4345715	Safety device for a heat exchange equipment filled with pressurized liquid A pipe connecting the equipment to be protected with a vessel is locally divided in two paths, a pump and a one-way valve being mounted in one path and an electro-magnetic valve in the other path. Pump and electric valve are controlled by a contact manome...	08/24/1982
4309982	Process and apparatus for the preparation of hot water from solar energy A process for preventing freezing of solar collectors by automatic drainage of the water or liquid working fluid contained within the collectors the working fluid is drained from the collector, but remains within the closed solar collector circuit. Appara...	01/12/1982
4296883	Heat generation and distribution system A heat distribution system is disclosed for transferring heat, such as is generated by a burner device of conventional construction, to a remote location, with circulation away from the burner in a horizontal or downward direction. The distribution system...	10/27/1981
4263498	Expansion chamber arrangement for water heating and dispensing device A water heating and dispensing device includes a tank which forms the main hot water container, a heating device in the tank which is thermostatically controlled in order to maintain the temperature of the water at the desired level, inlet and outlet cond...	04/21/1981
4248378	Self priming devices for indirect domestic water heating systems This invention relates to self-priming devices for indirect domestic water heating systems which device acts as expansion and contraction chambers for primary and secondary water in the system. The device consists of a closed housing divided internally by...	02/03/1981
4200147	Device for the exchange of heat between supply air and exhaust air in indoor premises A heat exchange system in which sensible and/or latent heat is exchanged between a stream of incoming air into an enclosure and a stream of air leaving the enclosure, comprising a heat exchanger for the incoming air and a heat exchanger for the leaving ai...	04/29/1980
4137965	Waste heat recovery system A system for recovering the waste heat normally exhausted into the atmosphere by chemical or other processing plants. The invented system comprises a heat exchange apparatus located in the exhaust stack or flue passage, heat transfer means for carrying th...	02/06/1979
4135571	Thermal storage systems Disclosed are suitably structured storage tanks which substantially eliminate blending problems in thermal storage systems. More particularly is disclosed floatable baffle and flexible diaphragm means for preventing blending of different temperatures of w...	01/23/1979
4049047	Liquid heat exchange system with separately compartmented make-up tanks A make-up tank is provided for two separate heat exchanger circuits operating at different temperatures, the tank having three compartments, a first compartment acting as a make-up tank for the first circuit, a third compartment as a make-up tank for the ...	09/20/1977
4013221	Pressure balancing device for heating systems An expansion tank is connected to a heating system by feed and drain pipes whereby the flow of water into and out of expansion tank is regulated by a valve and a pump. In the expansion tank there is a bellow which is in contact with the outer air....	03/22/1977
3989032	Solar water heating system A system for solar heating of water in combination with a domestic hot water system having a hot water storage tank having an inlet and an outlet, and a controllable heater arranged for heating water for storage within said storage tank. A solar heat coll...	11/02/1976
3937275	System for thermal exchangers A thermal distribution system for distributing heated or cooled fluid from respective fluid generators to thermal exchangers. The system comprises a regulating-reversing device for selectively controlling and distributing the fluid from and towards the ho...	02/10/1976
3934556	Boiler using combustible fluid A modular boiler having a cylindrical combustion chamber made of three modules and a module comprising a cover and a module comprising an expansion vessel mounted coaxially on the boiler adjacent the combustion chamber at opposite ends thereof. The cover ...	01/27/1976

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Class 237/66 - Expansion tanks