Sprinkler drop ruler
View Patent ↗A sprinkler drop ruler is provided for measuring the sprinkler drop from a roughed-in outlet. The sprinkler drop ruler includes a rigid frame having an opening, a handle connected to the rigid frame and in fixed relation to the rigid frame, and a ruler with an end shaped to seat in the opening and configured to move inside or along a side of the handle in order to measure a sprinkler drop. The sprinklerfitter may thus use the sprinkler drop ruler in order to measure the sprinkler drop. In this way, the sprinklerfitter does not need to climb a ladder to measure the sprinkler drop.
1. A sprinkler drop ruler comprising:
a rigid frame having an opening;
a handle connected to the rigid frame and in fixed relation to the rigid frame; and
a ruler with an end shaped to seat in the opening and configured to move inside or along a side of the handle in order to measure a sprinkler drop.
2. The sprinkler drop ruler of claim 1 , wherein the ruler is positioned at least partly within the handle and configured to move within the handle.
3. The sprinkler drop ruler of claim 2 , wherein the opening of the rigid frame is co-axial with the handle.
4. The sprinkler drop ruler of claim 1 , wherein the end of the ruler is rectangular in shape; and
wherein the opening is rectangular in shape and matched to seat the end of the ruler.
5. The sprinkler drop ruler of claim 4 , wherein the opening includes a lip configured to engage an underside of the end of the ruler so that when engaged, a top of the end of the ruler is flush with the rigid frame.
6. The sprinkler drop ruler of claim 1 , wherein the rigid frame is perpendicular to the handle.
7. The sprinkler drop ruler of claim 1 , further comprising a window connected to the handle, the window being transparent and including indicia so that the ruler is visible through the window.
8. The sprinkler drop ruler of claim 7 , wherein the ruler is positioned at least partly within the handle and configured to move within the handle; and
wherein the sprinkler drop ruler is configured for calibration so that when a top of the end of the ruler is flush with the rigid frame, the indicia point to a zero reading on the ruler.
9. The sprinkler drop ruler of claim 8 , wherein the indicia is in fixed relation with the window; and
wherein the sprinkler drop ruler is configured for calibration by moving the window.
10. The sprinkler drop ruler of claim 1 , wherein at least a part of the ruler is rigid.
11. The sprinkler drop ruler of claim 1 , wherein the handle is at least partly C-shaped; and
wherein the ruler slides inside the C-shaped handle.
12. The sprinkler drop ruler of claim 1 , wherein the rigid frame is rectangular in shape.
13. The sprinkler drop ruler of claim 12 , wherein at least one dimension of the rigid frame is greater than or equal to 2′.
14. The sprinkler drop ruler of claim 12 , wherein a first dimension of the rigid frame is greater than or equal to 2′ and a second dimension of the rigid frame is greater than or equal to 1′.
15. The sprinkler drop ruler of claim 1 , wherein when the end of the rule is seated in the opening, an opposite end of the ruler extends beyond an end of the handle.