Patents Assigned to M. Gottlieb Assoc.
  • Patent number: 4876472
    Abstract: A 5-phase dc motor which can be mass-produced readily at a reduced cost. The motor comprises a field magnet having four alternate north and south magnetic poles of an equal angular width, a rotor including a rotor armature core having five rotor pole shoes formed in an angularly equidistantly spaced relationship by an electrical angle of 144 degrees, a commutator including ten commutator segments provided successively on the rotor, and a pair of brushes disposed in a spaced relationship by an angular distance of 180.degree. electrical and for sliding contact with the commutator. A single conductor is electrically connected to the commutator segments and wound on the rotor pole shoes in a predetermined specific sequence to form armature windings which do not overlap with any other armature windings.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: October 24, 1989
    Assignees: Shicoh Engineering Co., Ltd., M. Gottlieb Assoc.
    Inventors: Manabu Shiraki, Norimitsu Hirano