Patents by Inventor Steven Lum

Steven Lum 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 of fabricating a shaft assembly
    Patent number: 7143510
    Abstract: An assembly provides metallic ends to a composite shaft and a method of fabricating such an assembly. The composite shaft is preferably comprised of reinforced fibers. A metallic inner sleeve is positioned in the cavity of one end of the shaft. A metallic outer sleeve is positioned around the end of the shaft having the inner sleeve therein. The outer sleeve may include structural features, such as dimples, that ensure a stable connection between the sleeve and the shaft. The sleeves are compressibly forced onto the shaft, thereby forming the assembly. Both sleeves are metallic, and therefore provide a surface onto which weld joints can be formed. A preferred method of assembly includes the steps of expanding the inner sleeve and compressing the outer sleeve against the shaft.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: December 5, 2006
    Assignee: Automotive Components Holdings, LLC
    Inventors: Christopher Alan Myers, Douglas James Bradley, Edward A. Umin, Ronald Oral Holcomb, Steven Lum
  • Shaft assembly providing a surface for forming joints
    Publication number: 20040148776
    Abstract: An assembly provides metallic ends to a composite shaft and a method of fabricating such an assembly. The composite shaft is preferably comprised of reinforced fibers. A metallic inner sleeve is positioned in the cavity of one end of the shaft. A metallic outer sleeve is positioned around the end of the shaft having the inner sleeve therein. The outer sleeve may include structural features, such as dimples, that ensure a stable connection between the sleeve and the shaft. The sleeves are compressibly forced onto the shaft, thereby forming the assembly. Both sleeves are metallic, and therefore provide a surface onto which weld joints can be formed. A preferred method of assembly includes the steps of expanding the inner sleeve and compressing the outer sleeve against the shaft.
    Type: Application
    Filed: December 18, 2003
    Publication date: August 5, 2004
    Applicant: Visteon Global Technologies, Inc.
    Inventors: Christopher Alan Myers, Douglas James Bradley, Edward A. Umin, Ronald Oral Holcomb, Steven Lum
  • Shaft assembly providing a surface for forming joints
    Publication number: 20030060295
    Abstract: The present invention relates to an assembly that provides metallic ends to a composite shaft and a method of fabricating such an assembly. The composite shaft is preferably comprised of reinforced fibers. A metallic inner sleeve is positioned in the cavity of one end of the shaft. A metallic outer sleeve is positioned around the end of the shaft having the inner sleeve therein. The outer sleeve may include structural features, such as dimples, that ensure a stable connection between the sleeve and the shaft. The sleeves are compressibly forced onto the shaft, thereby forming the assembly. Both sleeves are metallic, and therefore provide a surface onto which weld joints can be formed. A preferred method of assembly includes the steps of expanding the inner sleeve and compressing the outer sleeve against the shaft.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 27, 2003
    Inventors: Christopher Alan Myers, Douglas James Bradley, Edward A. Umin, Ronald Oral Holcomb, Steven Lum