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10,455 items

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August 2026

  • patent · · added 2 months ago

    Solar thermal propulsion engine

    The invention is directed to a solar thermal propulsion engine which comprises: (a) an ogive solar collection cavity with inner and outer walls having therebetween a heat exchange...

  • patent · · added 2 months ago

    Solar solids reactor

    A solar powered kiln is provided, that is of relatively simple design and which efficiently uses solar energy. The kiln or solids reactor includes a stationary chamber with a rearw...

  • patent · · added 2 months ago

    Hot liquid thermal energy storage tank and method

    An enclosed storage tank for a hot liquid comprising a metal shell with a flat metal bottom, a vertical cylindrical metal side wall and a metal roof; a vertical cylindrical interna...

  • patent · · added 2 months ago

    Solar selective surface coating

    A solar collector element having an inner tube through which a fluid can be passed, an outer glass tube enveloping the periphery of the inner tube and defining an evacuated space b...

  • patent · · added 2 months ago

    Receiver for solar energy

    The receiver has fibrous material in the form of hanging wires or knitted metal mats in the entry of the duct to absorb radiant energy. A cooling medium, such as air, is passed ove...

  • patent · · added 2 months ago

    Thermal energy storage methods and processes

    A thermal energy collecting and storing device including a thermally insulated storage vessel including a heat retaining material holding chamber, a solar portal in the top of the...

  • patent · · added 2 months ago

    Heat transfer and storage system

    An energy storage and conversion system utilizes unique heat exchange media for storing and transferring heat. In one embodiment, a refractory material is heated to the molten stat...

  • patent · · added 2 months ago

    Sensible heat storage unit

    A sensibe heat storage unit is provided which has a "step function" thermal gradient, and is constructed so as to have alternated regions of different thermal conductivity along th...

  • patent · · added 2 months ago

    Preparation of fluorine-containing diphenyl ethers

    A method of preparing a diphenyl ether compound of the formula (II) (II) wherein X is F, Cl or Br; Z is hydrogen, halogen, NO2 of CN; and W is methyl, cyano, CH3CO-, or a group -C-...

  • patent · · added 2 months ago

    Method and apparatus for obtaining work from heat energy

    The present invention provides a method of obtaining mechanical work from heat energy comprising heating a body of metal or metal alloy confined within a pressure vessel having a c...

  • patent · · added 2 months ago

    Thermal storage with molten salt for peaking power

    An improvement in the process for the generation of electrical power in which heat released by exhaust gases derived from the combustion of gaseous products in a coal gasification...

  • patent · · added 2 months ago

    Method of making precision parabolic reflector apparatus

    An improved method of making a high precision trough shaped parabolic reflector apparatus is described. A smooth surfaced sheet of flexible material is bent and formed over a conve...

  • patent · · added 2 months ago

    Porous surface solar energy receiver

    A porous surface receiver and concentrator of reflected solar radiation. The receiver is part of a moderately or strongly concentrating solar collector such as a solar power tower...

  • patent · · added 2 months ago

    Particulate energy absorber

    Radiant energy is converted to thermal energy utilizing forced convection through a fluidized bed. The bed is made up of solid, radiant energy absorbing solids in particulate form,...

  • patent · · added 2 months ago

    System for solar energy collection and recovery

    A system for the collection of solar radiation and the recovery of thermal energy therefrom includes solar radiation receiver means at or near the focus of a solar radiation concen...

  • patent · · added 2 months ago

    Rapid loading of steam turbines

    A method for loading a steam turbine and transferring from full arc to partial arc admission during loading while maintaining a constant rate of heating, so as to eliminate the coo...

  • patent · · added 2 months ago

    Tube support

    Machine transcription of the US3026858 patent scan, 3 pages.

  • patent · · added 2 months ago

    Gas turbine plant

    Machine transcription of the US2298663 patent scan, 6 pages.

  • patent · · added 2 months ago

    Power plant

    Machine transcription of the US2106346 patent scan, 13 pages.

  • patent · · added 2 months ago

    Hydrogen production from hydro power

    A method is provided for operating a hydroelectric power generating facility configured for operating in first and second operating modes. The facility includes a turbine driven po...

  • patent · · added 2 months ago

    Constrained layer damped steel baffle

    A damped steel baffle for an engine cam cover aids in separation of oil mist entrained in a flow of crankcase air vented through the cam cover, and directs the air to a PCV valve a...

  • patent · · added 2 months ago

    Dual coolant loop fuel cell power plant

    A dual coolant loop fuel cell power plant is disclosed that includes at least one fuel cell for producing an electric current from a reducing fluid and an oxidant stream, wherein t...