Patents by Inventor Teofil Cristian Andrej

Teofil Cristian Andrej 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).

  • Rotor shaft with a laminated core
    Patent number: 10224774
    Abstract: A method for mounting laminated sheets onto a shaft of a rotor provided for an electrical machine may involve sliding the laminated sheets onto the shaft and bracing the laminated sheets between two rotation-resistant thrust washers connected with the shaft. The laminated sheets may be slid onto the shaft to lie against a stop in the form of a first thrust washer arranged upon a first subsection of the shaft. A second thrust washer may be pressed in by axially bracing the laminated sheets onto a second axial subsection of the shaft in a frictional interlocking manner. The second thrust washer may be positioned after a surface of the second subsection has been enlarged by the introduction of an exterior surface profile.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 5, 2019
    Assignee: THUSSENKRUPP PRESTA TECCENTER AG
    Inventors: Daniel Paul, Juergen Meusel, Kay Hameyer, Thomas Herold, Teofil Cristian Andrej
  • ROTOR SHAFT WITH A LAMINATED CORE
    Publication number: 20170117766
    Abstract: A method for mounting laminated sheets onto a shaft of a rotor provided for an electrical machine may involve sliding the laminated sheets onto the shaft and bracing the laminated sheets between two rotation-resistant thrust washers connected with the shaft. The laminated sheets may be slid onto the shaft to lie against a stop in the form of a first thrust washer arranged upon a first subsection of the shaft. A second thrust washer may be pressed in by axially bracing the laminated sheets onto a second axial subsection of the shaft in a frictional interlocking manner. The second thrust washer may be positioned after a surface of the second subsection has been enlarged by the introduction of an exterior surface profile.
    Type: Application
    Filed: April 22, 2015
    Publication date: April 27, 2017
    Applicant: ThyssenKrupp Presta TecCenter AG
    Inventors: Daniel Paul, Juergen Meusel, Kay Hameyer, Thomas Herold, Teofil Cristian Andrej