Reflector for the concentration of solar radiation
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Cooking system for e.g. cooking food in household, has chamber drawer with drawer channel that is provided under wood support, and has inlet opening and outlet opening for combustion air
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Solar cooker used in e.g. home, for e.g. baking of food, has reflector metal sheet that is provided in region of center formed between reflector brackets arranged on two sides of reflector at axle
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Solar cooker for use in school system, is equipped with reflector for concentration of solar radiation on pot and is equipped with pot holder, which has two axes
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Method for synchronous switching of three phase machine from frequency converter of three-phase supply network, involves determining ideal switching time
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Method for temperature monitoring and thermal protection of electrical machines with a dynamic temperature model
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Changing asynchronous machine from star to triangle circuit with very low changeover current, torque steps involves defining time for very small phase difference between induced stator voltage, voltage of current network to be connected
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Arrangement for brushless asynchronous machine cascade with unlimited revolution rate and power range, has two asynchronous machines with mechanically and electrically connected rotors
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Frame for solar equipment with radiation receiver has joints for each post to allow it to be folded for storage or transport
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Reflector consists of plates , central form element, support, spacer elements on outer rim, belt and support ring and bearings.
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Rotary transformer inductive coupling for asynchronous electrical machine has stationary ferromagnetic primary and ferromagnetic secondary attached to rotor for transfer of slip load
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Solar cell manufacture from semiconductor waste
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Stirring mechanism for a solar cooker saucepan
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Arrangement for contactless monitoring of the physical quantities of a rotating machine part
ZA84207B
Tracking device
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Tracking device
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Tracking device
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Tracking device
DD160388A3
Device for the radial and axial movement of a drilling tube
