Patent ID: 7051445

Claim:
An improved apparatus generating light illuminated line comprising a circular scale means including a 360° degree scale located on a face side in a rim area of said circular scale means; a first projection extended from said circular scale means at 0° degree area of said degree scale; a first aperture located in said first projection; a first spring opening located in said first projection; a first nozzle opening located in said face side of said circular scale means at said 0° degree area of said degree scale; a second projection extended from said circular scale means at 180° degree area of said degree scale; a second aperture located in said second projection; a second spring opening located in said second projection; a second nozzle opening located in said face side of said circular scale means at said 180° degree area of said degree scale; a scale opening located at a center of said circular scale means, a hinging means including a cylindrical portion one side of which is coupled with a first inserting portion, and wherein said first inserting portion is installed in said scale opening; a second inserting portion coupled with the another side of said cylindrical portion; a power supply providing the electrical power source for a light line generating portion including a laser diode generating a light directed to an optical system providing a light line along a plane of said circular scale means and wherein said light line generating portion comprises a light line generating portion opening intended for installation of said second inserting portion of said hinging means; a first fixing means including a first handle comprising a first nozzle; a first pin by the one end rigidly connected to said first handle of said first fixing means, and by another end is coupled by a first fixing washer with said first projection of said circular scale means, and wherein said first pin has an outer diameter smaller than the diameter of said first aperture to provide an unobstructedly passage of said first pin through said first aperture; a first back-moving spiral spring placed in said first spring opening; a second fixing means including a second handle comprising a second nozzle; a second pin by the first end rigidly connected to said second handle of said second fixing means, and by the second end is coupled by a second fixing washer with said second projection of said circular scale means, and wherein said second pin has an outer diameter smaller than the diameter of said second aperture to provide an unobstructedly passage of said second pin through said second aperture; a second back-moving spiral spring placed in said second spring opening.