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| Number | Title | Issue Date |
| 7293423 | Method and apparatus for controlling freezing nucleation and propagation An apparatus and method of controlling freezing in a liquid system is disclosed. The apparatus includes a heat exchanger having a initial zone characterized by a surface area to volume ratio. The apparatus also includes means for initiating freezing of a fluid from ... | 11/13/2007 |
| 7143762 | Method and apparatus for solar collector with integral stagnation temperature control This invention relates to a method and apparatus for a solar collector having intergral control of the the maximum temperature that it can reach, thereby avoiding excessive stagnation temperatures in the collector. In one embodiment, a solar collector comprises a to... | 12/05/2006 |
| 6919020 | Distributor/collector system A distributor/collector system includes a distributor provided with an upper header having upper laterals carrying fluid away from the upper header and a collector provided with a lower header having lower laterals carrying fluid toward the lower header. Flow enters... | 07/19/2005 |
| 5531215 | Device for absorbing radiant heat energy A device for absorbing heat energy, in particular a solar panel, includes a housing in the form of a frame-shaped rack. The housing has a cover which allows the radiant energy to enter. Several collector tubes are disposed below the cover and between a di... | 07/02/1996 |
| 5413091 | Solar collector with freeze damage protection A flat plate solar collector (10) of the header/riser type housed in a glazed collector enclosure (14) and having liquid conduits comprising risers (24) intercommunicating with headers (22, 26) at both ends of the risers. The risers are tapered and the he... | 05/09/1995 |
| 4621679 | Water system valve for draining heat exchangers A valve (10) for a water temperature control system having a heat exchanger (C), a tank (T), and a pump (P) for circulating heat transfer fluid through a supply line (11, 12, 13) from the tank to the heat exchanger and through a return line (14, 15) from ... | 11/11/1986 |
| 4593678 | Hot water supply system A solar energy system employing solar panels used to heat water. The system includes a boiler with the vent for the boiler being located beneath the solar panels to distribute exhaust heat thereto. A structure is defined to allow venting of the enclosed a... | 06/10/1986 |
| 4583519 | Heat exchanger Heat exchangers which, through convection or radiation, are designed to absorb varyingly high energy flow about the circumference of their heat transmission walls. The cross-sectional area of the heat exchanger is subdivided into two or more flow passagew... | 04/22/1986 |
| 4553530 | Device for collecting solar heat This disclosure relates to a device for collecting solar heat by use of a vacuum tube type heat collector having a heat collecting plate and a heat medium tube disposed in a vacuum glass tube. The device is of the structure in which a temperature sensor i... | 11/19/1985 |
| 4541448 | Freeze protection valve with metal to plastic fitting design The freeze protection valve includes a molded plastic valve housing (A) including a peripheral wall (10) which defines an elongated recess (12) therein. The valve housing includes a first seating region (18) surrounding the elongated recess open end, a dr... | 09/17/1985 |
| 4474172 | Solar water heating panel The present invention discloses a solar water heating panel and method of constructing such a solar panel from a pair of thin sheets bonded together around their peripheral edges and having at least one of the sheets formed with resiliently flexible areas... | 10/02/1984 |
| 4460006 | Freeze protection valve The freeze protection valve includes a valve housing (A) which has a bore (20) through a lower wall portion (22) thereof to define a freeze drain outlet (B). A valve assembly (C) including a valve cup (50), a valving element (54), and a valve element bias... | 07/17/1984 |
| 4421097 | Solar lighting space and water heating system A daylighting space and domestic water heating system comprised of primary and secondary hot water storage, a light diffusing solar absorber with a water recirculating pump and a space air recirculating blower, a mixing valve from the primary water storag... | 12/20/1983 |
| 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 |
| 4368724 | Automatic anti-freeze system for solar water heaters A protection device for automatically draining the water contained in a solar energy water heater in case of frost is a frost detector disposed externally of the heater, and includes a heat exchanger formed of a material having a good heat conductivity, p... | 01/18/1983 |
| 4316450 | Process and apparatus for the utilization of solar and geothermal energy in double wall structures Solar and geothermal energy are utilized in structures having a double-walled foil covering which is transparent to solar radiation by spraying ground (well) water at preferably superatmospheric pressure into the space between the two foil covers.... | 02/23/1982 |
| 4308856 | Protection against the freezing of solar collectors A solar heat collector has a transparent cover and metal fins beneath the cover. Secured to each fin is a tube through which flows water to be heated, the tube having the general cross-sectional configuration of a figure eight and the tube being welded to... | 01/05/1982 |
| 4244352 | Control system for solar heater A solar water heating system having main solar panels for collecting heat from the sun and transferring the heat to water flowing through it from an inlet line to a storage tank. A control system is located to shut the flow of water and drain the system w... | 01/13/1981 |
| 4165733 | Solar energy collector system A solar energy collector system including at least one heat exchange panel posessing a system of internal tubular passageways defining opposed headers connected by connecting portions of said passageways extending therebetween, said passageways including ... | 08/28/1979 |
| 4153040 | Protective cooling system for solar heat collector An auxiliary system for cooling a solar collector of the type having circulating fluid when normal circulation fails, comprising direct mechanical temperature responsive means for admitting domestic water to the collector automatically when a predetermine... | 05/08/1979 |
| 4150660 | Easy access energy conversion panels for solar heating systems A series of panels for converting solar energy into heat for warming gas or liquid are incorporated between the rafters of a building. Access to each of the panels for easy installation or repair is possible from within the building by panel securing mean... | 04/24/1979 |
| 4121565 | Solar heating unit A solar heating unit for disposition exteriorly of a building window for heating the air within the space interiorly of the window embodying a casing with a transverse divider for creating a rear passage and a front passage which are in communication in t... | 10/24/1978 |
| 4112921 | Method and system for utilizing a flexible tubing solar collector The practical large scale use of solar energy depends primarily upon the first cost of solar collectors per unit area being greatly reduced below known designs without loss of efficiency. The subject invention introduces a method of making flat plate sola... | 09/12/1978 |
| 4108374 | Heat storage water tank A heat storage tank suitable for solar house heating systems. The tank includes a rigidly supported bottom panel covered with a layer of stones of substantially uniform size which are bonded together thermally and mechanically at their points of contact w... | 08/22/1978 |
| 4064868 | Solar heat collector A heat collector for absorbing solar energy includes a hollow panel with an insulated backwall connected to a cover plate by insulated spacer side walls. A conduit extends to and fro between opposed side walls in the space between the cover plate and the ... | 12/27/1977 |
| 4020828 | Pressure relief valve apparatus and method A valve body is formed of a section of flow pipe for connection to an open end on a flow pipe by means of a surrounding sealing sleeve and outer clamp. A valve body end cap is formed of a standard pipe cap with inlet ports drilled through the end thereof.... | 05/03/1977 |
| 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 |
| 3985117 | Solar sensor-heater A solar sensor-heater comprising a fluid conduit coiled about a black body enclosed in an insulated container. One side of the container is transparent to allow solar radiation to impinge upon the fluid conduit and black body. A pump is located in the flu... | 10/12/1976 |
