Patents by Inventor Matti Rantapaa

Matti Rantapaa 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).

  • METHOD FOR MANUFACTURING THE FRAME OF AN ELECTRIC MACHINE, AN ELECTRIC MACHINE AND A FRAME OF AN ELECTRIC MACHINE
    Publication number: 20110037353
    Abstract: A method for manufacturing the frame of an electric machine in which stator is formed, a first sheath of sheet metal is formed around and attached to a stator by laser welding and a cooling element is attached to the first sheath by laser welding. The electric machine includes at least a frame, a stator attached to the frame, an axis, a rotor attached to the axis and the front flange to which a bearing casing has been fitted in order to fit the bearing used to support the axis. The bearing casing has been fitted into the front flange in such a manner that the bearing can be placed into the bearing casing from inside the frame. In addition, the disclosure relates to the frame of an electric machine.
    Type: Application
    Filed: April 7, 2009
    Publication date: February 17, 2011
    Applicant: RANDAX OY
    Inventor: Matti Rantapaa