Patents by Inventor Stefan Elmgren

Stefan Elmgren 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: 6939051
    Abstract: A bearing arrangement supporting a sealing bellows around a shaft to permit axial and angular motion includes inner and outer bearing sleeves, and a rolling bearing having an inner race ring fitted around the inner sleeve with one end face engaging a shoulder in the inner sleeve. A sealing device is provided in a space between the inner and outer sleeves. A flexible elongated bellows for enclosing a portion of the shaft is sealingly connected at one end to the outer surface of the outer sleeve and is attachable at its opposite end to a fitting of a machine member from which the shaft projects. The outer sleeve is a sheet metal sleeve provided with an inwardly bent flange portion forming an engagement surface for the opposite side face of the rolling bearing. The bellows is fixedly attachable to the outer surface of the outer sleeve by bonding through vulcanization.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: September 6, 2005
    Assignee: SKF Sverige AB
    Inventors: Stefan Elmgren, Folke Östling, Lars Andrén
  • Publication number: 20040101220
    Abstract: A bearing arrangement for supporting a sealing bellows around a shaft in a manner permitting axial and angular motion, and incorporating a first, inner bearing sleeve (3), a standard rolling bearing (2) fitted with its inner race ring around said first sleeve (3) and with one end face engaging a shoulder (4) in the inner sleeve (3), and a second, outer bearing sleeve (7), sealing means provided in a space between said first and second bearing sleeves (3, 7), beside the rolling bearing, and a flexible, elongated bellows (12) intended to enclose a portion of a shaft (1) and sealingly connected at one of its ends to the outer envelope surface of the second, outer bearing sleeve (7), and having means (16, 18) for attachment of its opposite end to a fitting (14) of a machine member (15) from which the shaft (1) projects, wherein the second, outer bearing sleeve (7) is a sheet metal sleeve provided with an inwardly bent flange portion (8), forming an engagement surface for the opposite side face of the rolling bear
    Type: Application
    Filed: August 1, 2003
    Publication date: May 27, 2004
    Inventors: Stefan Elmgren, Folke Ostling, Lars Andren