Patents by Inventor Xun Lei

Xun 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).

  • Patent number: 7909072
    Abstract: An adjustable stop plank for a power tool includes a drive mechanism connected to the stop plank for continuous adjustment of the angle of the stop plank with respect to the work surface and has a display for indicating the current angle of the stop plank. In one form, the micro-adjusting device for the stop plank of a power tool includes a hand wheel unit provided on the holding frame operable to continuously adjust the angle of the stop plank. The power tool may include indicia to indicate a plurality of angles for the stop plank and an index for indicating on the indicia the current angle of the stop plank.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: March 22, 2011
    Assignee: Walter Meier (Manufacturing) Inc.
    Inventors: Xun Lei, Bor Yann Chuang
  • Publication number: 20080257453
    Abstract: An adjustable stop plank for a power tool includes a drive mechanism connected to the stop plank for continuous adjustment of the angle of the stop plank with respect to the work surface and has a display for indicating the current angle of the stop plank. In one form, the micro-adjusting device for the stop plank of a power tool includes a hand wheel unit provided on the holding frame operable to continuously adjust the angle of the stop plank. The power tool may include indicia to indicate a plurality of angles for the stop plank and an index for indicating on the indicia the current angle of the stop plank.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 23, 2008
    Applicant: WMH TOOL GROUP, INC.
    Inventors: Xun Lei, Bor Yann Chuang
  • Patent number: 7392830
    Abstract: An adjustable stop plank for a power tool includes a drive mechanism connected to the stop plank for continuous adjustment of the angle of the stop plank with respect to the work surface and has a display for indicating the current angle of the stop plank. In one form, the micro-adjusting device for the stop plank of a power tool includes a hand wheel unit provided on the holding frame operable to continuously adjust the angle of the stop plank. The power tool may include indicia to indicate a plurality of angles for the stop plank and an index for indicating on the indicia the current angle of the stop plank.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: July 1, 2008
    Assignee: WMH Tool Group, Inc.
    Inventors: Xun Lei, Bor Yann Chuang
  • Patent number: 6401579
    Abstract: A workpiece holding apparatus for holding and guiding a workpiece relative to a device having a driven cutting or abrading member includes a base having a workpiece support surface and a first track therein. The apparatus further includes a track-mounted member having a void. The track-mounted member is selectively securable within the void at a desired position along the track. A workpiece mounting member is provided that is slidable within the void.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: June 11, 2002
    Assignee: Delta International Machinery Corp.
    Inventor: Xun Lei
  • Patent number: 6363822
    Abstract: An arm configuration used in a scroll saw that allows the two arms to move substantially independently of one another and having a retaining mechanism which isolates one of the arms if one arm becomes disengaged from the saw blade or the saw blade breaks. A speed indicator that allows the user to easily determine the speed of the saw visually. A drive assembly including a pulley system that provides for increased torque and the saw to have a wide range of speeds.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: April 2, 2002
    Assignee: Delta International Machinery Corp.
    Inventor: Xun Lei
  • Publication number: 20010037714
    Abstract: An arm configuration used in a scroll saw that allows the two arms to move substantially independently of one another and having a retaining mechanism which isolates one of the arms if one arm becomes disengaged from the saw blade or the saw blade breaks. A speed indicator that allows the user to easily determine the speed of the saw visually. A drive assembly including a pulley system that provides for increased torque and the saw to have a wide range of speeds.
    Type: Application
    Filed: March 16, 1999
    Publication date: November 8, 2001
    Inventor: XUN LEI
  • Publication number: 20010017070
    Abstract: A workpiece holding apparatus for holding and guiding a workpiece relative to a device having a driven cutting or abrading member includes a base having a workpiece support surface and a first track therein. The apparatus further includes a track-mounted member having a void. The track-mounted member is selectively securable within the void at a desired position along the track. A workpiece mounting member is provided that is slidable within the void.
    Type: Application
    Filed: February 19, 1999
    Publication date: August 30, 2001
    Inventor: XUN LEI
  • Patent number: 5545081
    Abstract: An apparatus for holding a tool having a cutting edge in a predetermined abrading orientation with respect to a tool abrading apparatus. The apparatus comprises a base member supportable on the tool abrading apparatus and adapted to support a tool thereon. A positioning member is movably attached to the base member for selective abutting contact with the tool. An adjustment assembly is attached to the base member for selectively advancing and retracting the positioning member relative to the base member to position the tool into the predetermined abrading orientation. A tool retaining member is removably attached to the base to selectively retain the tool on the base member in the predetermined abrading orientation.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: August 13, 1996
    Assignee: Delta International Machinery Corp.
    Inventors: Jeffrey L. Haffely, Xun Lei, Louis C. Brickner
  • Patent number: 5505655
    Abstract: An abrading machine includes a tool platform for supporting a tool at a selected elevation and angular position relative to an abrading surface of the abrading machine. The tool platform includes a tool rest member, having a tool-receiving surface, which is movably attached to a carriage assembly which is, in turn, movably received by a support assembly. An abrading machine having two or more abrading stations and an adjustable tool platform moveable between the abrading stations is also provided.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: April 9, 1996
    Assignee: Delta International Machinery Corp.
    Inventors: Jeffrey L. Haffely, Xun Lei, Louis C. Brickner
  • Patent number: D366662
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: January 30, 1996
    Assignee: Delta International Machinery Corp.
    Inventors: Jeffrey L. Haffely, Xun Lei, Louis C. Brickner
  • Patent number: D416919
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: November 23, 1999
    Assignee: Delta International Machinery Corp.
    Inventor: Xun Lei
  • Patent number: D417227
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: November 30, 1999
    Assignee: Delta International Machinery Corp.
    Inventor: Xun Lei
  • Patent number: D991601
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: July 4, 2023
    Inventor: Xun Lei