Patents by Inventor David C. Wang

David C. Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of fabricating stator for a multiple pole dynamoelectric machine
    Patent number: 4619040
    Abstract: A stator assembly for a multiple-pole (e.g., an 18 pole) induction motor is disclosed having a main winding and an auxiliary winding with the main and auxiliary windings each having a first and a second coil set, each of these coil sets having multiple coils selectively electrically connected together. The stator assembly further includes a core having slots therein for receiving the coils. There is one coil of the first auxiliary winding coil set inserted in the first and third slots of the core, one coil of the first main winding coil set inserted in the second and fourth slots, one coil of the second auxiliary winding coil set inserted in the third and fifth slots, and one coil of the second main winding coil set inserted in the fourth and sixth slots thereby to form a layered coil insertion pattern of the coils in the first six slots of the core.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: October 28, 1986
    Assignee: Emerson Electric Co.
    Inventors: David C. Wang, Harry W. Voepel
  • Stator for a multiple-pole dynamoelectric machine and method of fabricating same
    Patent number: 4520287
    Abstract: A stator assembly for a multiple-pole (e.g., an 18 pole) induction motor has a main winding and an auxiliary winding, with the main and auxiliary windings each having a first and a second coil set, each of these coil sets having multiple coils selectively electrically connected together. The stator assembly further includes a core having slots for receiving the coils, which is continuously skein wound in an open, serpentine sequence. There is one coil of the first auxiliary winding coil set inserted in the first and third slots of the core, one coil of the first main winding coil set inserted in the second and fourth slots, one coil of the second auxiliary winding coil set inserted in the third and fifth slots, and one coil of the second main winding coil set inserted in the fourth and sixth slots thereby to form a layered coil insertion pattern of the coils in the first six slots of the core.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: May 28, 1985
    Assignee: Emerson Electric Co.
    Inventors: David C. Wang, Harry W. Voepel
  • Method of fabricating a stator for a multiple-pole dynamoelectric machine
    Patent number: 4426771
    Abstract: A stator assembly for a multiple-pole (e.g., an 18 pole) induction motor is disclosed having a main winding and an auxiliary winding with the main and auxiliary windings each having a first and a second coil set, each of these coil sets having multiple coils selectively electrically connected together. The stator assembly further includes a core having slots therein for receiving the coils. There is one coil of the first auxiliary winding coil set inserted in the first and third slots of the core, one coil of the first main winding coil set inserted in the second and fourth slots, one coil of the second auxiliary winding coil set inserted in the third and fifth slots, and one coil of the second main winding coil set inserted in the fourth and sixth slots thereby to form a layered coil insertion pattern of the coils in the first six slots of the core.
    Type: Grant
    Filed: October 27, 1981
    Date of Patent: January 24, 1984
    Assignee: Emerson Electric Co.
    Inventors: David C. Wang, Harry W. Voepel