Magnetic chalk line
View Patent ↗A magnetic chalk line provides a powerfully magnetized fastener, which may be secured magnetically to any flat metal surface, such that it will remain secured when the line is drawn out of its spool and snapped. A hook end is provided which may be hooked to the edge of a surface, such as a steel plate, girder, wooden stud, or drywall sheet. A teardrop-shaped aperture is provided in the fastener, enabling the user to easily secure it to a nail head when working with wood or other non-metallic materials.
1. A magnetic chalk line, comprising:
(a) a spool;
(b) a chalk line;
(c) said spool comprising a crank handle; said crank handle being configured such that it retracts said chalk line when rotated;
(d) a fastener having a centerline;
(e) a hole;
(f) said hole being centered on said centerline;
(g) said fastener being affixed to an end of said chalk line by attaching said chalk line to said hole;
(h) said fastener having one or more magnets attached thereto, such that it may be removably attached to any metallic surface;
(i) said fastener having a hook end;
(j) said hook end being configured to removably attach to the edge of a surface;
(k) said fastener having an aperture; and
(l) said aperture being centered on said centerline.
2. The magnetic chalk line of claim 1 , wherein said chalk line is configured such that when snapped against a surface it leaves a chalk mark on said surface.
3. The magnetic chalk line of claim 1 , wherein said hook end is at a slightly inward bevel and not at a ninety degree angle.
4. The magnetic chalk line of claim 2 , wherein said hook end is at a slightly inward bevel and not at a ninety degree angle.
5. The magnetic chalk line of claim 1 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
6. The magnetic chalk line of claim 2 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
7. The magnetic chalk line of claim 3 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
8. The magnetic chalk line of claim 4 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
9. The magnetic chalk line of claim 1 , wherein said aperture is tear drop shaped; a bulbous end of said tear drop shape being configured to face said chalk line.
10. The magnetic chalk line of claim 2 , wherein said aperture is tear drop shaped; a bulbous end of said teardrop shape being configured to face said chalk line.
11. The magnetic chalk line of claim 1 , wherein said aperture is football shaped.
12. The magnetic chalk line of claim 2 , wherein said aperture is football shaped.
13. The magnetic chalk line of claim 9 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
14. The magnetic chalk line of claim 10 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
15. The magnetic chalk line of claim 11 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.
16. The magnetic chalk line of claim 12 , wherein said hook end further comprises a v-shaped notch; said v-shaped notch being centered on said centerline.