Patents by Inventor Sheng Tao Xie

Sheng Tao Xie 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).

  • Laser line generator having three intersecting light planes
    Patent number: 8640350
    Abstract: An improved laser line generating device is provided for use in construction layout tasks. The laser line generating device is comprised of a first laser light generator operable to emit from a housing a first plane of light having a fan angle greater than 180° and arranged in the housing to project the first plane of light perpendicular to a horizontal plane; and a second laser light generator operable to emit from the housing a second plane of light having a fan angle greater than 180° and arranged in the housing to project the second plane of light perpendicular to the first plane of light and perpendicular to the horizontal plane, such that the first plane of light intersects with the second plane of light at two points.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: February 4, 2014
    Assignee: Black & Decker, Inc.
    Inventors: James P. Bascom, Jia Yong Jiang, Xiang Wang, Sheng Tao Xie, Wei Hua Si, Daniel K. Hardy