Patents by Inventor Rolf Aregger

Rolf Aregger 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: 7116024
    Abstract: An electric motor having a stator with a plurality of radially arranged pole shoes between which slots are arranged, a rotor which rotates within the stator and has a rotor shaft which is mounted on both sides of the rotor, isolating stars for covering the end faces of the pole shoes, a stator winding which is situated in the slots and surrounds the end-face isolating stars, and an outer stator casing, in which the stator winding uses the isolating stars to secure the rotor and, at the respective end, encloses the rotor bearings and the rotor in its position in the stator. The isolating stars are formed such that they may firstly accommodate the bearings for the rotor shaft and furthermore also may accommodate bearings for attachment of supports for accommodating the electronic circuits for electronic commutation. An electric motor of this type is distinguished by the capability to operate for long periods continuously, accompanied by high rotational speeds and small dimensions.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: October 3, 2006
    Assignee: Leister Process Technologies
    Inventors: Mathias Berwert, Hans Arnold, Rolf Aregger
  • Publication number: 20050062351
    Abstract: An electric motor having a stator with a plurality of radially arranged pole shoes between which slots are arranged, a rotor which rotates within the stator and has a rotor shaft which is mounted on both sides of the rotor, isolating stars for covering the end faces of the pole shoes, a stator winding which is situated in the slots and surrounds the end-face isolating stars, and an outer stator casing, in which the stator winding uses the isolating stars to secure the rotor and, at the respective end, encloses the rotor bearings and the rotor in its position in the stator. The isolating stars are formed such that they may firstly accommodate the bearings for the rotor shaft and furthermore also may accommodate bearings for attachment of supports for accommodating the electronic circuits for electronic commutation. An electric motor of this type is distinguished by the capability to operate for long periods continuously, accompanied by high rotational speeds and small dimensions.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 24, 2005
    Inventors: Mathias Berwert, Hans Arnold, Rolf Aregger
  • Patent number: D604399
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: November 17, 2009
    Assignee: Leister Process Technologies
    Inventors: Rolf Aregger, Lukas Gisler
  • Patent number: D617434
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 8, 2010
    Assignee: Leister Process Technologies
    Inventors: Rolf Aregger, Lukas Gisler