Patents Assigned to Chervon International Trading Co., Ltd.
  • Patent number: 7243896
    Abstract: A foldable support frame for supporting a tool is provided. The support table comprises a first pair of legs disposed one in parallel with the other. The table further comprises a second pair of legs disposed one in parallel with the other. The second pair of legs are pivotally connected to the first pair of legs proximate a midpoint so that the first and second pairs of legs are movable to a crossing position. Each of the first and second pairs of legs have a top end and a base end. The support table also has a first connection bar connectedly disposed between first pair of legs, and a second connection bar connectedly disposed between first pair of legs. Tool supporters are fixedly connected between the respective top ends of the first and second pairs of legs. The support table also has a support rod having a first end and a second end. The first end of the support rod is connected to the first connection bar and the second end of the support rod is connected at the to the first tool supporter.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: July 17, 2007
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Chongyi Zhang
  • Patent number: 7243433
    Abstract: A laser level with adjustable laser projection line comprises a support bracket, a housing, a switch, a laser generator which project a fanned laser beam to the surface of the work piece to form a line, and wherein a rotating mechanism is coupled to rotate the laser generator thereby causing rotation of the line. There is also a positioning device to position the laser level on an arbitrary surface.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: July 17, 2007
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: 7131206
    Abstract: A jig saw for more precise movement during cutting with a laser alignment system for projecting a marker onto a workpiece to align with a target line to be cut. The laser alignment system comprises a housing, a laser generator within the housing, an internal battery supplying the laser generator, a switch which is positioned within the housing and independent of the main switch to turn on and turn off the laser generator. By turning on the switch, the laser generator projects a laser beam onto the workpiece ahead of the blade in alignment with the plane of the blade. The operator only needs to align the projected laser line along a target line on the workpiece to attain the more precise cutting without concentrating his observation exactly ahead of the cutting blade.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 7, 2006
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Publication number: 20060191147
    Abstract: A laser level with adjustable laser projection line comprises a support bracket, a housing, a switch, a laser generator which project a fanned laser beam to the surface of the work piece to form a line, and wherein a rotating mechanism is coupled to rotate the laser generator thereby causing rotation of the line. There is also a positioning device to position the laser level on an arbitrary surface.
    Type: Application
    Filed: May 12, 2006
    Publication date: August 31, 2006
    Applicant: Chervon International Trading Co. Ltd.
    Inventor: Shuming Wu
  • Patent number: 7055252
    Abstract: A laser level with adjustable laser projection line comprises a support bracket, a housing, a switch, a laser generator which project a fanned laser beam to the surface of the work piece to form a line, and wherein a rotating mechanism is coupled to rotate the laser generator thereby causing rotation of the line. There is also a positioning device to position the laser level on an arbitrary surface.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: June 6, 2006
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: 6898860
    Abstract: An auxiliary handle with a laser alignment device for drills comprises a grip portion for grasping, an opened collar which can be engaged with shoulder of the drill, and a clamp means for locking or loosing the opened collar. The auxiliary handle also comprises a first laser generator which can project a fanned planar laser beam, a battery pack which can be used to power the first laser generator, and a switch for turning on or turning off the first laser generator, the fanned laser beam which is projected by the first laser generator is in alignment with the central axis of the opened collar. Such that the fanned laser beam is in alignment with the central axis of the chuck when the auxiliary handle is mounted on the drill.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: May 31, 2005
    Assignee: Chervon International Trading Co. Ltd.
    Inventor: Shuming Wu
  • Publication number: 20040205972
    Abstract: A laser level with adjustable laser projection line comprises a support bracket, a housing, a switch, a laser generator which project a fanned laser beam to the surface of the work piece to form a line, and wherein a rotating mechanism is coupled to rotate the laser generator thereby causing rotation of the line. There is also a positioning device to position the laser level on an arbitrary surface.
    Type: Application
    Filed: November 12, 2003
    Publication date: October 21, 2004
    Applicant: Chervon International Trading Co. Ltd.
    Inventor: Shuming Wu
  • Patent number: 6722618
    Abstract: A foldable support frame for supporting a cutting machine comprises two opposing pairs of leg frames each of which comprises a pair of first crossed legs and second crossed legs that are pivotally connected together. Where the first and second crossed legs cross, two stopper means are positioned for supporting each pair of the first and second crossed legs and limiting the inclination of each of the first and second crossed legs. Each first and second crossed leg comprises an upper slide rod and a support leg, and each slide rod can slide within a respective support leg to adjust the total length of each first and second crossed leg. Thus, the foldable support frame can be easily folded or retracted in for storage and transport and unfolded or extended for supporting the cutting machine or other similar machines.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: April 20, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Publication number: 20040049927
    Abstract: A circular saw for more precise movement during cutting with a laser alignment system for projecting a maker onto a workpiece to align with a target line to be cut. The laser alignment system comprises a housing, a laser generator, an internal battery which can be replaced without the aid of a tool, a switch which can be independently positioned within the housing and be turned on or off independently or a switch which can be positioned near the main switch of the circular saw and be actuated together with the main switch. The laser line projected by the laser alignment aligns with the plane of a saw blade of the circular saw. Thus, the saw blade can follow the target line by aligning the laser line with the target line.
    Type: Application
    Filed: December 18, 2002
    Publication date: March 18, 2004
    Applicant: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D501776
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: February 15, 2005
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D501777
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: February 15, 2005
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D502373
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: March 1, 2005
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D519346
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: April 25, 2006
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D519804
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: May 2, 2006
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D529357
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: October 3, 2006
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Xunzhuang Qiu
  • Patent number: D491080
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 8, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D497530
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: October 26, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D498399
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 16, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D498653
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 23, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu
  • Patent number: D499001
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: November 30, 2004
    Assignee: Chervon International Trading Co., Ltd.
    Inventor: Shuming Wu