The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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| Number | Title | Issue Date |
| 5931157 | Thermal insulation/thermal collector assembly A combined thermal-insulation/thermal-collector assembly for the outside walls or roofs of buildings has a heat-insulating layer which is transparent to solar radiation and is designed with a transparent structure. The heat-insulating material including a... | 08/03/1999 |
| 4403645 | Compact storage of seat and coolness by phase change materials while preventing stratification While many materials and additives which will melt and freeze at various temperature levels for storing and releasing large amounts of heat thereby per unit volume have been disclosed, the packaging of these materials with suitable non-corrodible long-las... | 09/13/1983 |
| 4338919 | Solar collector system employing particulate energy collecting media A solar collector system including a particulate energy collecting medium for receiving solar energy. The medium cooperates with a solar collector which is adapted to expose the particulate energy collecting medium to solar energy. A heat exchanger permit... | 07/13/1982 |
| 4326975 | Process for storing heat with a eutectic composition containing at least one saturated aliphatic hydrocarbon and at least one fatty acid Heat, particularly solar heat, is stored by a eutectic composition containing at least one saturated aliphatic hydrocarbon and at least one fatty acid having at least 10 carbon atoms.... | 04/27/1982 |
| 4263961 | Method and an apparatus for storing heat energy A method and an apparatus for storing heat energy in a hybride heat storage apparatus comprising a first and a second material are disclosed, the first and the second materials having different melting temperatures and different densities and being non-mi... | 04/28/1981 |
| 4257481 | Cement panel heat exchangers A heat exchange element for solar heating is made of a solidified material such as concrete, cement, ceramic or resin bonded particulate material. Internal ducting is provided by embedded pipes or within the material itself. In the latter case a former is... | 03/24/1981 |
| 4237964 | Heat exchange process with heat accumulation System for storing thermal energy obtained from a heat source operable in a discontinuous manner, such as a solar collector, comprising the successive steps of using this thermal energy to raise the temperature of a solid substance, dispersed in a liquid,... | 12/09/1980 |
| 4187831 | Self contained solar heating supplemental unit This specification discloses a self contained solar heating supplemental unit characterized by solar collector; a mast carrying a solar collector above the earth's surface; a dual function base carrying the mast and the solar collector and serving as a th... | 02/12/1980 |
| 4146057 | Thermal buffer system A quantity of aluminum is in heat exchange contact with a potassium loop and a steam/water loop. The potassium loop includes a solar energy collector and the solar-heated potassium melts the aluminum to store thermal energy as latent heat of fusion. The s... | 03/27/1979 |
| 4111189 | Combined solar radiation collector and thermal energy storage device A solar energy device for collecting solar radiation, converting the radiation to thermal energy and storing the thermal energy, and a process for manufacturing of same.... | 09/05/1978 |
| 4082143 | Solar energy Simplicity is the height of invention. In the present invention, a plurality of containers provide for heat storage in water or other fluids, plus heat storage in heat-of-fusion heat storage material, plus domestic water heating, including good quality he... | 04/04/1978 |