Patents Assigned to Matthias Scholer
  • Multipolar stepping motor
    Patent number: 5051633
    Abstract: A multipolar rotor (11) is magnetized axially and comprises, in one of its faces situated opposite two pole pieces (1 and 2), alternate north and south poles distributed along its periphery. Each of the pole pieces has a concave inside rim provided with teeth (5) separated by interposed zones (6). A core (3), on which a coil (4) is mounted, magnetically couples the pole pieces to the coil. The pitch .alpha.s of the teeth of the pole pieces is different from the pitch .alpha.r of the poles of the rotor.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: September 24, 1991
    Assignee: Matthias Scholer
    Inventors: Mai X. Tu, Michel Schwab