Patents by Inventor Matthis Nickel-Jetter

Matthis Nickel-Jetter 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).

  • External-rotor motor having a stationary bearing shaft
    Patent number: 7548003
    Abstract: An improved drum motor, preferably electronically commutated, features a unitary stationary central shaft (18) supporting a stationary inner stator (52), and an external rotor (49), including permanent magnets (54), secured to an inner surface of a generally cylindrical rotatable casing part (18). This permits variable speed operation while avoiding any need for an internal gear linkage. Safety is improved by making sealing plates (76, 78) at respective axial ends of the casing (14) stationary, and providing an annular peripheral seal (90) around each sealing plate. Respective rolling bearings (24, 44) near each end of the casing (14) facilitate rotation of the external rotor (49) relative to the stator (52), and a clamping arrangement (30) minimizes noise from the bearings.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: June 16, 2009
    Assignee: EMB-PAPST St.Georgen GmbH & Co. KG
    Inventors: Matthis Nickel-Jetter, Hermann Rappenecker, Siegfried Schreiner
  • External-rotor motor having a stationary bearing shaft
    Patent number: 7049718
    Abstract: An improved drum motor, preferably electronically commutated, features a unitary stationary central shaft (18) supporting a stationary inner stator (52), and an external rotor (49), including permanent magnets (50), secured to an inner surface of a generally cylindrical rotatable casing part (18). This permits variable speed operation while avoiding any need for an internal gear linkage. Safety is improved by making sealing plates (76, 78) at respective axial ends of the casing (14) stationary, and providing an annular peripheral seal (90) around each sealing plate. Respective rolling bearings (24, 44) near each end of the casing (14) facilitate rotation of the external rotor (49) relative to the stator (52), and a clamping arrangement (30) minimizes noise from the bearings.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 23, 2006
    Assignee: ebm-papst St. Georgen GmbH & Co. KG
    Inventors: Matthis Nickel-Jetter, Hermann Rappenecker, Siegfried Schreiner
  • External-rotor motor having a stationary bearing shaft
    Publication number: 20040119349
    Abstract: An improved drum motor, preferably electronically commutated, features a unitary stationary central shaft (18) supporting a stationary inner stator (52), and an external rotor (49), including permanent magnets (54), secured to an inner surface of a generally cylindrical rotatable casing part (18). This permits variable speed operation while avoiding any need for an internal gear linkage. Safety is improved by making sealing plates (76, 78) at respective axial ends of the casing (14) stationary, and providing an annular peripheral seal (90) around each sealing plate. Respective rolling bearings (24, 44) near each end of the casing (14) facilitate rotation of the external rotor (49) relative to the stator (52), and a clamping arrangement (30) minimizes noise from the bearings.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 24, 2004
    Applicant: ebm-papst St. Georgen GmbH & Co. - KG
    Inventors: Matthis Nickel-Jetter, Hermann Rappenecker, Siegfried Schreiner