Patents by Inventor August Spiesberger

August Spiesberger 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).

  • Patent number: 4234808
    Abstract: A stepping motor of the homopolar design with a step angle of 3.6.degree. and having a generally cubic form is disclosed. The motor includes a generally square, single-section laminated stator which has only four stator poles extending radially inwardly from the middle regions of the straight sides, and a concentric rotor secured to a shaft journaled in a pair of bearing bells fixed to the stator at the opposite faces thereof and having the same generally square configuration. The rotor includes a disc-shaped permanent magnet of high remanent energy density (B.times.H).sub.max .gtoreq.10.times.10.sup.6 GOe, and a pair of annular steel rotor elements provided at the working air gap with identical numbers Z.sub.r of rotor teeth of pitch .tau..sub.r =360.degree./Z.sub.r. Each stator pole is provided at the working air gap with four or five stator pole teeth of pitch .tau..sub.s =360.degree./Z.sub.s, where Z.sub.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: November 18, 1980
    Assignee: Gerhard Berger GmbH & Co. Fabrik Elektrischer Messgerate
    Inventors: Klaus Geppert, Gunter Heine, Karl Hubner, Gunter Ose, Bernd Seeger, Claus Schaffer, August Spiesberger
  • Patent number: 4031419
    Abstract: A self-starting synchronous or stepping motor has at least two phases, a permanent magnet rotor and a stator including individually excited and inwardly facing main stator poles. The stator poles and rotor poles have a predetermined spacing of .tau.p. The stator poles are combined in groups of alternate polarity. The groups are displaced by a predetermined angle. At least one windingless auxiliary stator pole of approximately one-half of the width of the main stator pole is provided per group in addition to the main stator poles. The total number of stator poles is at least equal to the number of rotor poles. Additional auxiliary poles may be either half-pole widths or pointed shape. Embodiments of two-phase and three-phase synchronous motors are disclosed.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: June 21, 1977
    Assignee: Gerhard Berger, Fabrik Elektrischer Messgerate
    Inventors: August Spiesberger, Claus Schaffer
  • Patent number: 3978356
    Abstract: In the disclosed motor, completely or partially wound inwardly projecting stator poles form three or more pole pairs that surround a permanent magnet rotor. The stator poles per phase are grouped together into a single pole group with alternating north-south poles, and groupwise are arranged on the inner circumference of the stator so that a mechanical offset angle .delta..apprxeq. 180/mp+.epsilon. exists between the pole groups and the pole division angles .tau..rho. of the stator and rotor are equal or deviate from each other only slightly.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: August 31, 1976
    Assignee: Gerhard Berger Fabrikation Elektrischer Messgerate
    Inventor: August Spiesberger