Patents by Inventor Yuzhong Lei

Yuzhong Lei 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).

  • Arch bridge
    Patent number: 7469438
    Abstract: An exemplary bridge includes an arch unit. The arch unit includes a first abutment and a second abutment, a deck extending between the first and second abutments, a pair of asymmetrical arches, and a plurality of suspender members 3 attached between the arches and the deck. The first and second abutments are spaced apart from each other at a predetermined distance. The asymmetrical arches are juxtaposedly arranged between and supported by the first and second abutments. Each of the asymmetrical arches includes a first arch foot portion mounted on the first abutment, a parabolic portion proximate to the first arch foot portion, a catenary portion proximate to the parabolic portion, and a second arch foot portion proximate to the catenary portion mounted on the second abutment.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: December 30, 2008
    Inventors: Yong Li, Yuzhong Lei, Yiyan Chen
  • Arch bridge
    Publication number: 20080005857
    Abstract: An exemplary bridge includes an arch unit. The arch unit includes a first abutment and a second abutment, a deck extending between the first and second abutments, a pair of asymmetrical arches, and a plurality of suspender members 3 attached between the arches and the deck. The first and second abutments are spaced apart from each other at a predetermined distance. The asymmetrical arches are juxtaposedly arranged between and supported by the first and second abutments. Each of the asymmetrical arches includes a first arch foot portion mounted on the first abutment, a parabolic portion proximate to the first arch foot portion, a catenary portion proximate to the parabolic portion, and a second arch foot portion proximate to the catenary portion mounted on the second abutment.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 10, 2008
    Inventors: Yong Li, Yuzhong Lei, Ylyan Chen