IP Library › Granted Patent US 10,006,768
Granted Patent B2
US 10,006,768 · App. 15/131,148 · Granted Jun 26, 2018

Laser level

Inventor: James Spaulding (Bristol, CT)
Assignee: STANLEY BLACK & DECKER INC.
G01C15/002G01C15/004
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,006,768
App. No.
15/131,148
Filed
Apr 18, 2016
Granted
Jun 26, 2018
Kind
B2
Art Unit
2855
USPC
33/290
Abstract

A laser level including a housing. A laser generator assembly is housed in the housing and generates a laser beam. A projector projects the beam from the laser generator outside of the housing onto a target surface. The laser is a rotary laser and the projector rotates to rotate projection of the beam. The laser level also includes protective arms extending from the housing, the protective arms blocking projection of the beam along part of its path as the projector rotates. A width of the beam is at least twenty percent greater than a width of the leg where the beam contacts the leg.

Claims (43)

1. A laser level, comprising:

a housing;

a laser generator assembly housed in the housing and generating a laser beam,

a projector configured to project the beam from the laser generator outside of the housing onto a target surface;

wherein the laser is a rotary laser and the projector rotates to rotate projection of the beam;

the laser level further comprising at least one protective leg extending from the housing, the protective leg blocking projection of the beam along part of its path as the projector rotates;

wherein a width of the beam is at least 20% greater than a width of the at least one protective leg where the beam contacts the at least one protective leg.

2. The laser level of claim 1 , the at least one protective leg comprises two protective legs and the width of the beam is at least 30% greater than the width of each of the two protective legs where the beam contacts each of the two protective legs.

3. The laser level of claim 2 , wherein the width of the beam is at least 40% greater than the width of each of the two protective legs where the beam contacts each of the two protective legs; and

wherein the widths of each of the two protective legs where the beam contacts each of the two protective legs is at least 3 mm.

4. The laser level of claim 2 , wherein the widths of each of the two protective legs where the beam contacts each of the two protective legs are at least 4 mm.

5. The laser level of claim 2 , wherein the width of each of the two protective legs where the beam contacts each of the two protective legs are at least 5 mm.

6. The laser level of claim 2 , wherein the width of each of the two protective legs where the beam contacts each of the two protective legs are at least 6 mm.

7. The laser level of claim 1 , wherein the width of the beam is at least 30% greater than the width of the at least one protective leg where the beam contacts the at least one protective leg; and

wherein the at least one protective leg has a width of at least 3 mm where the beam contacts the at least one protective leg.

8. The laser level of claim 1 , wherein the laser beam has a perpendicular cross section which is a cross section taken perpendicular to an axis of the laser beam, the perpendicular cross section having a first dimension and a second dimension perpendicular to the first dimension, the first dimension of the cross section being at least 30% larger than the second dimension.

9. The laser level of claim 8 , wherein the first dimension of the perpendicular cross section is at least 45% larger than the second dimension.

10. The laser level of claim 8 , wherein the first dimension of the perpendicular cross section is at least 60% larger than the second dimension.

11. A laser level, comprising:

a housing;

a laser generator assembly housed in the housing and generating a laser beam;

a projector configured to project the beam from the laser generator outside of the housing;

a motor, the motor connected to the projector and selectively driving the projector in a rotary motion whereby the beam is rotated;

protective legs which protect the projector and are situated between the projector and a target surface along part of a path of the beam as the projector is rotated;

wherein a width of the beam is at least 25% greater than a width of the leg where the beam contacts the leg; and

wherein the width of the leg where the beam contacts the leg is at least 3 mm.

12. The laser level of claim 11 , wherein the width of the beam is at least 30% greater than the width of the leg where the beam contacts the at least one protective leg.

13. The laser level of claim 11 , wherein the width of the beam is at least 50% greater than the width of the leg where the beam contacts the at least one protective leg.

14. The laser level of claim 11 , wherein the laser beam has a perpendicular cross section with a first dimension and a second dimension perpendicular to the first dimension, the first dimension of the cross section being at least 20% larger than the second dimension.

15. The laser level of claim 14 , wherein the first dimension of the perpendicular cross section is at least 50% larger than the second dimension.

16. A laser level, comprising:

a housing;

a laser generator assembly housed in the housing and generating a laser beam;

a projector configured to project the beam from the laser generator outside of the housing;

a motor, the motor connected to the projector and selectively driving the projector in a rotary motion whereby the beam is rotated;

protective legs which protect the projector and are situated between the projector and a target surface along part of a path of the beam as the projector is rotated;

wherein the laser beam has a perpendicular cross section which is a cross section taken perpendicular to an axis of the laser beam, the perpendicular cross section having a first dimension and a second dimension perpendicular to the first dimension, the first dimension of the cross section being at least 20% larger than the second dimension.

17. The laser level of claim 16 , wherein the first dimension is at least 35% larger than the second dimension.

18. The laser level of claim 16 , wherein the first dimension is at least 50% larger than the second dimension.

19. The laser level of claim 16 , wherein the first dimension is at least 75% larger than the second dimension.

20. The laser level of claim 16 , wherein the protective legs comprise three protective legs; and

wherein a width of the beam is at least 30% greater than a width of each the three protective legs where the beam contacts each of the three protective legs; and

wherein the width of each of the three protective legs where the beam contacts each of the three protective legs is at least 4 mm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2016
From: SPAULDING, JAMES
To: STANLEY BLACK & DECKER INC.
Reel/Frame 038390/0398 →
Continuity (2)
Provisional Application 62308490 · Mar 15, 2016
Related Publication 20170268877A1 · Sep 21, 2017
Cited By (5)
US 12,235,106 US 12,332,055 US 12,392,608 US 12,422,257 US 12,656,113