Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7294255 | Nitrification system and method A system reduces ammonia within a fluid flow. The system includes an aeration vessel, a clarifier vessel, and a geyser pump. The aeration vessel nitrifies bacteria within the fluid flow. The aeration vessel has an intake flow rate. The clarifier vessel receives flui... | 11/13/2007 |
| 7201215 | Vapor-lift pump heat transport apparatus A vapor-lift pump heat transport apparatus having a small heat resistance and a large heat transport capacity. A heat exchange circulating solution container has a first space and a second space communicating with the first space through a communication opening and ... | 04/10/2007 |
| 7107984 | Collector module A collector module (1) is described with a collector manifold (20) having two chambers. This collector module (1) has at least one collector tube (2), which has an absorber tube (4) and a tubular jacket (3). A connector (... | 09/19/2006 |
| 6905499 | Heat pipe for cautery surgical Instrument A heat pipe for a cautery surgical instrument such as a surgical forceps including a pair of elongate arms joined at an end so as to provide for resilient compressible movement of the arms between a normally open position and a squeezed closed position. The heat pip... | 06/14/2005 |
| 6619282 | Solar concentrating liquid lightguide This nontracking solar concentrator can be larger than a football field and produce a 20 sun focus. A tank holds panels to collect light and water to guide light to the focus. The tank has a wide field of view that eliminates the need for a sun-tracking m... | 09/16/2003 |
| 4917079 | Solar water heating system A solar powered water heating system (10) for heating water in a storage tank (T) including a solar collector (C) for converting a refrigerant from a liquid to a gaseous state, a pump (30) communicating with the solar collector via a first refrigerant sup... | 04/17/1990 |
| 4911144 | Spherical solar energy collector A solar collector particularly for receiving concentrated solar energy from a large parabolic reflector and which forms the evaporator of a heat pipe type heat transfer mechanism. The solar collector is formed from a pair of spherical shell portions which... | 03/27/1990 |
| 4872315 | Heat exchanger and systems and methods for using the same A heat exchanger comprises a housing containing upper and lower layers of fluid, the upper layer being less dense than the lower layer. The large and sharp density gradient at the interface between the upper and lower layers acts to prevent mixing of the ... | 10/10/1989 |
| 4801246 | Device for elevating liquids with a plurality of intermediate containers communicating with one another In a device for elevating liquids a heat exchanging vessel to be neated by an exterior source of heat is connected with a discharge pipe arranged to elevate doses of liquid, so that for performing a thermodynamic cycle the liquid to be elevated is used as... | 01/31/1989 |
| 4781173 | Evaporating device and electric supply station provided with such an evaporating device An evaporating device comprises sets of solar heating units of a type having an insulated oblong room provided at the top with a slit, a mirror structure mounted on said room and a pipe extending through said room. Pipes from the units of a set form toget... | 11/01/1988 |
| 4771763 | Solar powered fluid heating system A solar powered fluid heating system includes a thermal collector for vaporizing a refrigerant, a separator for removing any liquid component from the vapor component of the heated refrigerant, and a condenser for transferring heat from the refrigerant va... | 09/20/1988 |
| 4766885 | Solar water heater A solar water heater comprising at least one casing having housed therein a heat collector of the heat pipe type having a condenser portion and a heat receiving tank for receiving heat from the condenser portion of the collector, and a hot water tank disp... | 08/30/1988 |
| 4749447 | Evacuated evaporation-pressurized condensation solar still This invention discloses a solar still comprising a plurality of twin conduits routed through a plurality of solar collectors wherein the liquid is evaporated in the evaporation conduit constituting the first of the twin conduits and the vapor is condense... | 06/07/1988 |
| 4738247 | Roof installations Roof installations consisting of an array of interfitting members e.g. tiles, strips (3), slats or the like which interfit to form a roof covering and a set of heat pipes (7) which run parallel to the plane of the roof (6,1). Heat is abstracted from the h... | 04/19/1988 |
| 4724826 | Solar water heater incorporating heat pipe A solar water heater comprises a platelike heat pipe having a working fluid enclosed therein. The heat pipe includes a heat collector having parallel tubular portions and a radiator having hollow portions in communication with the tubular portion. A hot w... | 02/16/1988 |
| 4676225 | Method and apparatus for enhancing the pumping action of a geyser pumped tube A geyser pump and a geyser pumped heat transfer system having a multitude of heat absorbing tubes from which heated liquid is pumped into a vapor/liquid separator by geyser action enhanced by positive vapor bubble generation apparatus and flow control met... | 06/30/1987 |
| 4671252 | Bubble formation and circulation system Conduits jointly define a fluid and vapor occupied annular chamber which when the conduits are heated emits bubbles which propel a quantity of fluid along a conduit. A fluid imbalanced condition in fluid heads is achieved by the bubble propulsion of fluid... | 06/09/1987 |
| 4649902 | Solar collector A solar collector has first and second windows and an absorber behind the second window. A layer of material is provided on the interior surface of the first window, to which a fluid is supplied for dispersal throughout the material, and from which the fl... | 03/17/1987 |
| 4615328 | Solar powered fluid heating system having an improved thermal collector assembly A solar powered fluid heating system includes a thermal collector for vaporizing a refrigerant, a separator for removing any liquid component from the vapor component of the heated refrigerant, and a condenser for transferring heat from the refrigerant va... | 10/07/1986 |
| 4613409 | High rate solar still and process A method and apparatus for purifying raw feedwater. The raw feedwater is directed into an evaporator module submerged in a solar pond or other body of heated liquid. The evaporator module includes a rotating housing through which a plurality of spaced apa... | 09/23/1986 |
| 4611654 | Passive system for heat transfer A passive heat transfer system is provided wherein the vapor generated by the boiling of a working fluid is harnessed to transport the working fluid from a heat source to a heat sink below the heat source. A passive circulation unit is installed in a heat... | 09/16/1986 |
| 4607688 | Autogenous solar water heater A bubble pump system capable of delivering heat from a higher to a lower position, particularly useful in a solar heating system is described, in which slugs of liquid and vapor are separated out in a separator and the vapor separated is cooled and conden... | 08/26/1986 |
| 4603685 | Solar heating system The present invention relates to a solar water heating system operating in a closed circuit and making use of a change of phase in a working fluid as a heat transfer medium, comprising: at least one collector to be exposed to sunlight for transmitting rad... | 08/05/1986 |
| 4566430 | Sun heating equipment The outlet of the collectors is connected to the inlet thereof by means of a line in which are mounted the primary part of a heat exchanger condenser, a vacuum pump, a venting cylinder, and a flow-control device. A distributing device feeds water with a p... | 01/28/1986 |
| 4552208 | Heat actuated system for circulating heat transfer fluids An apparatus and method for circulating a heat transfer liquid from a heat collector, which is generally but not essentially a solar collector, to a heat exchanger or heat storage means which is located at a level below that of the heat collector without ... | 11/12/1985 |
| 4545365 | Fluid heating system utilizing solar energy and waste heat A fluid heating system includes a thermal collector for vaporizing a refrigerant, a separator for removing any liquid component from the vapor component of the heated refrigerant, and a condenser for transferring heat from the refrigerant vapor to a fluid... | 10/08/1985 |
| 4527545 | Solar energy system and solar heat collector The invention relates to a solar energy system comprising a collector consisting of a sloping space exposed to solar light for a heat transporting medium performing a primary circulation, which is thermally coupled by the downward run with a working mediu... | 07/09/1985 |
| 4524759 | Process for the reversible transfer of thermal energy and heat transfer system useful therein A process for reversibly transferring heat between a plurality of zones maintained at different temperature levels, and a heat transfer system useful therein. The technique involves maintaining a solution of a volatile material, e.g., a solution of a non-... | 06/25/1985 |
| 4510922 | Energy storage system having thermally stratified liquid A thermal energy storage system is disclosed for heating a liquid and establishing and maintaining thermal stratification of the liquid in a storage tank. The tank, which may store hot water for domestic use, contains a vertical header assembly which func... | 04/16/1985 |
| 4490980 | Geographically positioned, environmental, solar humidification energy conversion Air and water are provided in a solar collector and heated by the solar collector to provide warm humid air which is transported past a boiler in a closed cycle power system. The boiler is positioned at an elevation above that of the solar collector. A wo... | 01/01/1985 |
| 4478211 | Self-pumping solar heating system with geyser pumping action A self-pumping solar heating system having a collector including a multitude of small diameter riser tubes from which heated liquid is pumped into a header by a geyser action. A vapor condenser assures a header pressure conducive to bubble nucleation in t... | 10/23/1984 |
| 4474170 | Glass heat pipe evacuated tube solar collector A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular... | 10/02/1984 |
| 4467862 | Device for passive heat transport and integrated solar collector incorporating same A device for passively transporting heat in any direction, particularly downwards, from a heat source to a heat sink, which device comprises a boiler for heating a working fluid, a container for condensing vapor of the heated working fluid, means for tran... | 08/28/1984 |
| 4467788 | Solar energy actuated apparatus for distilling water from liquids and solids The apparatus of the disclosed invention uses solar energy that impinges upon it for the purposes of distilling water from solutions and mixtures and for drying out of agricultural produce and other materials containing water. In a single apparatus, the m... | 08/28/1984 |
| 4454865 | Liquid metal solar power system A solar power system for cogenerating heat and electricity is disclosed. An improved solar collector includes a transparent reflector envelope through which a reflective liquid metal such as mercury is circulated. The liquid metal is preheated as it focus... | 06/19/1984 |
| 4454864 | Solar collector comprising a heat exchanger Solar collector comprising a closed housing of mainly rectangular cross-section, a collector thermally connected to the housing for converting solar rays into heat, a working fluid which, during operation, is partly liquid and partly gaseous, an evaporati... | 06/19/1984 |
| 4413476 | Geographically positioned, environmental, solar humidification energy conversion A system and a method of geographically positioned, environmental solar humidification energy conversion is disclosed. The method includes the steps of: (a) providing air in a solar collector; (b) providing water in the solar collector; (c) combining the provi... | 11/08/1983 |
| 4409961 | Solar water pump The intermittent generation of steam by a solar heat source provides a reciprocating column of water when the steam pressure acts on the top of a water column and the column in turn causes a diaphram in a chamber first to expand into an adjacent chamber w... | 10/18/1983 |
| 4385625 | Building heating system A building heat collection, storage and exchange system adapted for use with a solar collector, and featuring a specially designed heat storage tank. The closed system contains both liquid and gas, and is provided with drain reservoirs so that when heat i... | 05/31/1983 |
| 4382437 | Self-contained passive solar heating system A self-contained passive solar heating system includes first and second heat pipes, each having a refrigerant medium therein, a condenser portion and an evaporator portion, with the condenser portion of the first heat pipe being coupled to the evaporator ... | 05/10/1983 |
