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BR0201751A
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Coupling system for windmills through towers with different diameters that form platforms for the execution of technical services.
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BR0200238A
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Windmill trip system by mechanical wind-driven device
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BR0200261A
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Wind energy utilization system through pole-coupled windmills with endless screw drive box.
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BR0103630A
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Heat recovery system through vertical metal chamber with spiral-shaped internal coils
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BR0103632A
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Horizontal sheet metal heat recovery system with water heater for wood burning stove
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BR0103631A
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Movable horizontal sheet metal water heater system with spiral-shaped internal coils
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BR9401703A
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Automatic collector for water supply
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BR9002882A
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Handling and return manual device through double movement lever arm
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BR9001255A
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Double handling and simultaneous return manual
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BR8706867A
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Water pump piston head with anti-are system and side outlets
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BR8706870A
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Automatic trimming system in excess of wind power for windmills
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BR8706868A
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Different water pump system with double lever action
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BR8706869A
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Fitted pulley and cavities for circulation of washer carrier chains
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BR8401042A
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Floating coupled flat wheel
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BR8303147A
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High rotation water impeller through thread connected to rotating cover
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BR8303148A
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Water pump by elastic camera through compensating ratchet and mobile arm
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BR8104347A
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High pressure pump through the speed reduction and power strength system
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BR8104350A
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High pressure compressed air storage valve
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BR8104342A
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Pump hydraulic system through pushing action
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BR8104348A
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Hydraulic water pump with animal motorization
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