Patents by Inventor Si Wei Hua

Si Wei Hua 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: 8307562
    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: April 29, 2010
    Date of Patent: November 13, 2012
    Assignee: Black & Decker Inc.
    Inventors: James P. Bascom, Jiang Jia Yong, Wang Xiang, Xie Sheng Tao, Si Wei Hua, Daniel Hardy, Hongbo Yu
  • LASER LINE GENERATOR HAVING THREE INTERSECTING LIGHT PLANES
    Publication number: 20110265336
    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: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicant: BLACK & DECKER INC.
    Inventors: James P. Bascom, Jiang Jia Yong, Wang Xiang, Xie Sheng Tao, Si Wei Hua, Daniel Hardy