List of homopolar generator patents

From Wikipedia, the free encyclopedia

A homopolar generator is an electrical generator in which the magnetic field has the same polarity at every point, so that the armature passes through the magnetic field lines of force continually in the same direction. The device is electrically symmetrical, and generates continuous current. Some of these devices also have "homopolar magnets", which have pole pieces arranged around a common centre. The United States Patent Office uses the classification class 310 (Electrical generator or motor structure) and subclass 178 (Dynamoelectric; Rotary; D.C.; Homopolar) for these devices. Many of the homopolar patents were obtained prior to 1975. Below is a list of homopolar generator patents.

[edit] American

• G. D. Hathaway, "U.S. Patent 5587618 , Direct current homopolar machine".
• W. F. Weldon, "U.S. Patent 5530309   Homopolar machine ".
• Antonios Challita, "U.S. Patent 5049771  Electrical machine".
• W. F. Weldon, "U.S. Patent 4858304 , Method of constructing a rotor assembly for homopolar generator".
• W. F. Weldon, "U.S. Patent 4800311  Rotor assembly for homopolar generator".
• W. F. Weldon, "U.S. Patent 4544874  Homopolar generator power supply system".
• W. F. Weldon, "U.S. Patent 4246507  Removable brush mechanism for a homopolar generator ".
• Esko Ensio hubta-Koivisto, "U.S. Patent 3469137  Electric unipolar motor".
• E. C. Ketchum and D. H. Andrews, "U.S. Patent 1082579   Dynamo electric machine".
• A. Kingsbury, "U.S. Patent 992965  Dynamo electric machine".
• W. A. Dick, "U.S. Patent 992943  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 988377  Dynamo electric machine".
• H. Hertz, "U.S. Patent 988340  Unipolar exciter for turbo-generators".
• D. W. Troy, "U.S. Patent 979603  Dynamo electric machine".
• A. S. Hubbard, "U.S. Patent 970827  Dynamo electric machine".
• B. Von Ugrimoff, "U.S. Patent 970407  Cooling device for electrical sliding contacts".
• E. C. Ketchum, "U.S. Patent 966839  Brush holders for dynamos".
• J. E. Noeggerath, "U.S. Patent 960383  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 959959  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 937462  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 920626  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 900771  Armature for unipolar machines".
• J. E. Noeggerath, "U.S. Patent 895888  Unipolar dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 895887  Acyclic machine".
• J. E. Noeggerath, "U.S. Patent 890697  Protective device for unipolar machine".
• A. C. Eastwood, "U.S. Patent 881387  System of control for electric motors".
• J. E. Noeggerath, "U.S. Patent 873072  Dynamo electric machine".
• W. Mathiesen, "U.S. Patent 861192  Unipolar dynamo".
• E. Thomson, "U.S. Patent 859350  Unipolar generator".
• J. E. Noeggerath, "U.S. Patent 854756  Dynamo electric machine".
• C. Macmillan, "U.S. Patent 854749  Power transmission mechanism".
• C. Macmillan, "U.S. Patent 850664  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 832742  Unipolar alternating current machine".
• E. C. Ketchum, "U.S. Patent 826668  Dynamo".
• H. H. Wait, "U.S. Patent 806217  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 805315  Unipolar machine".
• C. P. Steinmetz, "U.S. Patent 804440  Dynamo electric machine".
• J. E. Noeggerath, "U.S. Patent 789444  Electric motor".
• E. R. Cox, Jr., "U.S. Patent 742600  Dynamo electric machine or motor".
• B. Bjarnason, "U.S. Patent 678157  Dynamo electric machine".
• F. W. Throop, "U.S. Patent 662042  Dynamo electric machine".
• G. Dalen and A Hultovist, "U.S. Patent 645943  Dynamo electric machine".
• F. G. Mayer, "U.S. Patent 561803  Dynamo electric machine".
• E. Thomson and M. J. Wightman, "U.S. Patent 550464  Dynamo electric machine".
• G. Rennerfelt, "U.S. Patent 523998  Dynamo electric machine".
• H. E. Dikeman, "U.S. Patent 518444  Dynamo electric machine".
• J. E. Maynadier, "U.S. Patent 515882  Dynamo electric machine".
• T. L. Willson, "U.S. Patent 495538  Dynamo electric machine".
• N. Tesla, "U.S. Patent 406968  Dynamo electric machine".
• J. B. Entz, "U.S. Patent 400838  Dynamo electric machine".
• R. Eickemeyer, "U.S. Patent 396149  Unipolar dynamo electric machine".
• E. A. Sperry, "U.S. Patent 354946  Dynamo electric machine".
• R. Eickemeyer, "U.S. Patent 352234  Electro magnetic and megneto electric machine".
• R. Eickemeyer, "U.S. Patent 351907  Device for taking electric currents from or to moving surfaces".
• R. Eickemeyer, "U.S. Patent 351904  Magneto electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 351903  Magneto electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 351902  Magneto electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 342589  Dynamo electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 342588  Dynamo electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 342587  Dynamo electric and electro magnetic machine".
• R. Eickemeyer, "U.S. Patent 342504  Magneto electric and electro magnetic machine".
• S. Z. De Ferranti, "U.S. Patent 341097  Unipolar dynamo electric machine".
• C. Batchelor and H. E. Walter"U.S. Patent 339839  Dynamo electric machine".
• C. Hering, "U.S. Patent 339772  Unipolar dynamo electric machine".
• G. Forbes, "U.S. Patent 338169  Dynamo electric machine".
• A. E. G. Lubke, "U.S. Patent 293758  Dynamo electric machine".
• A. F. Delafield, "U.S. Patent 278516  Dynamo electric machine".
• C. E. Ball, "U.S. Patent 238631  Dynamo or magneto-electric machine".