Patents Assigned to Chervon International Trading Co., Ltd.
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Patent number: 7243896Abstract: 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: GrantFiled: July 7, 2004Date of Patent: July 17, 2007Assignee: Chervon International Trading Co., Ltd.Inventor: Chongyi Zhang
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Patent number: 7243433Abstract: 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: GrantFiled: May 12, 2006Date of Patent: July 17, 2007Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: 7131206Abstract: 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: GrantFiled: December 23, 2002Date of Patent: November 7, 2006Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Publication number: 20060191147Abstract: 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: ApplicationFiled: May 12, 2006Publication date: August 31, 2006Applicant: Chervon International Trading Co. Ltd.Inventor: Shuming Wu
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Patent number: 7055252Abstract: 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: GrantFiled: November 12, 2003Date of Patent: June 6, 2006Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: 6898860Abstract: 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: GrantFiled: November 13, 2003Date of Patent: May 31, 2005Assignee: Chervon International Trading Co. Ltd.Inventor: Shuming Wu
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Publication number: 20040205972Abstract: 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: ApplicationFiled: November 12, 2003Publication date: October 21, 2004Applicant: Chervon International Trading Co. Ltd.Inventor: Shuming Wu
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Patent number: 6722618Abstract: 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: GrantFiled: November 11, 2002Date of Patent: April 20, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Publication number: 20040049927Abstract: 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: ApplicationFiled: December 18, 2002Publication date: March 18, 2004Applicant: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D501776Type: GrantFiled: March 10, 2004Date of Patent: February 15, 2005Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D501777Type: GrantFiled: March 10, 2004Date of Patent: February 15, 2005Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D502373Type: GrantFiled: March 10, 2004Date of Patent: March 1, 2005Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D519346Type: GrantFiled: March 10, 2004Date of Patent: April 25, 2006Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D519804Type: GrantFiled: March 10, 2004Date of Patent: May 2, 2006Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D529357Type: GrantFiled: March 22, 2006Date of Patent: October 3, 2006Assignee: Chervon International Trading Co., Ltd.Inventor: Xunzhuang Qiu
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Patent number: D491080Type: GrantFiled: June 3, 2003Date of Patent: June 8, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D497530Type: GrantFiled: November 12, 2003Date of Patent: October 26, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D498399Type: GrantFiled: March 10, 2004Date of Patent: November 16, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D498653Type: GrantFiled: March 10, 2004Date of Patent: November 23, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu
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Patent number: D499001Type: GrantFiled: June 3, 2003Date of Patent: November 30, 2004Assignee: Chervon International Trading Co., Ltd.Inventor: Shuming Wu