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  • 1.
    [发明专利]JP19750179567U _ 1975年12月31日
  • [发明专利]FR19750014624 _ ABEGG BERNARD 1975年05月09日
    The low power heating system consists of a wind-driven generator. It is connected to an electric heating element that heats circulating water or air. The air blades of the generator have a variable pitch and are designed with the AC generator for wind...
  • 3.
    [发明专利]FR19750003724 _ GIRODIN MARIUS 1975年02月06日
  • [发明专利]US19750633387 _ BOLIE, VICTOR W. 1975年11月19日
    A vertical axis windmill is taught having a horizontal base, preferably circular in configuration, sitting on the earth's surface, a dome having a horizontal bottom spaced above the base supported on a plurality of columns to provide an annular space ...
  • [发明专利]US19750558822 _ WHITE, FRED I. 1975年03月17日
    A heat powered linear force generator and a heat engine embodying a plurality of the force generators for driving a rotary output shaft. The linear output force of the force generator is a periodic linear force acting continuously in the same directio...
  • [发明专利]US19750544951 _ DIESEL KIKI CO., LTD. 1975年01月29日
    A rotor is eccentrically journalled for rotation within a bore of a stationary housing formed with end walls and inlet and outlet ports. One or more blades are radially slidable within grooves in the rotor and biased into sealing engagement with the i...
  • [发明专利]US19750631017 _ CATERPILLAR TRACTOR CO. 1975年11月12日
    An improved slant axis rotary mechanism such as an engine, a compressor, pump, or the like. The mechanism includes a housing defining an operating chamber and a shaft is journalled within the housing. The shaft includes an angularly offset portion wit...
  • [发明专利]US19750605289 _ OCCIDENTAL PETROLEUM CORPORATION 1975年08月18日
    Apparatus to convert the internal energy of hot fluids to mechanical work comprising a pair of nozzles, e.g. convergent-divergent nozzles, mounted oppositely on hollow support arms which are in turn mounted on a rotating hollow shaft which is coupled ...
  • [发明专利]US19750541248 _ SWEENEY, THOMAS E. NIXON, WALTER B. 1975年01月15日
    A windmill blade that has a rigid leading edge, a rigid root portion and a movable blade tip. Control of the geometric twist of the windmill blade is accomplished through proper selection of the axis of rotation for the movable blade tip and by contro...
  • [发明专利]US19750608678 _ BUTLER, JR., TONY W. 1975年08月28日
    An energy conversion system is associated with an edifice for converting natural energy to usable energy. The edifice has a generally vertical outwardly facing side surface, and the system includes radiation collecting means defining a plurality of ra...
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