Patents by Inventor Tihomir Bratoljic

Tihomir Bratoljic 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).

  • Solid rotor for asynchronous electrical machines
    Patent number: 4282451
    Abstract: A solid rotor made from steel for use in an asynchronous electrical machine wherein, for the purpose of increasing its otherwise poor electrical conductivity and thereby to reduce its electrical losses, the end faces of the rotor are provided with concentric annular rings separated by intervening grooves.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: August 4, 1981
    Assignee: BBC Brown Boveri & Company Limited
    Inventor: Tihomir Bratoljic
  • .DELTA.-Connected, two-layer, three-phase winding for an electrical machine
    Patent number: 4200817
    Abstract: A winding for a .DELTA.-connected, two-layer, three phase electrical machine with at least two shunt connected sets of coils per phase wherein the winding is arranged such that two adjacent sets of coils are connected with the coils of one set being cross connected and the other set being uncrossed. The coil end overhangs of the crossed set are longer than the overhangs of the uncrossed set. The voltage difference between adjacent conductor rods of one layer thus amounts, at all phase changes, at most to one winding voltage.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: April 29, 1980
    Assignee: BBC Brown Boveri & Company Limited
    Inventor: Tihomir Bratoljic