Laser level and square

• US 5,531,031 A
• Filed: 01/20/1995
• Issued: 07/02/1996
• Est. Priority Date: 01/20/1995
• Status: Expired due to Fees

• Current Assignee: Kevin D. Green
• Original Assignee: Kevin D. Green
• Inventors: Green, Kevin D.
• Primary Examiner(s): Fulton, Christopher W.
• Application Number:
  US08/376,002
• Time in Patent Office: 529 Days
• Field of Search: 33/365, 33/263, 33/281, 33/282, 33/283, 33/285, 33/286, 33/DIG. 1, 33/DIG. 21, 33/374, 33/375, 33/384, 33/388, 33/389
• US Class Current: 33/365
• CPC Class Codes: G01C 15/008 combined with inclination sensor
• CPC Class Codes: Y10S 33/21 with laser

Abstract

A device for leveling and squaring which includes a level body having a spirit vial or electronic inclinometer, wherein a battery powered laser module assembly is rotatably mounted in one end of the level body for emitting a visible laser beam therefrom. The level body contains a transparent window which allows the laser beam to exit therefrom. Further, the level body has a groove parallel the longitudinal axis thereof to provide a horizontal (0°) reference line. Wherefore, the laser beam establishes a precise line, which is variably adjustable from horizontal (0°) to 90° thereto, for alignment and squaring uses. Magnetic strips are used for attaching the level body to ferromagnetic materials.

Claims

1. A device for leveling and squaring, comprising:

a level body;

a means for leveling coupled with said level body;

a means contained within said level body for emitting a visible laser beam therefrom;

a means for variably directing the laser beam, wherein the laser beam is variably redirected through a range of about 0°

to about 90°

from a longitudinal axis of said level body;

a window coupled with said level body, said window having means for allowing the laser beam to exit said level body throughout said range of about 0°

to about 90°

from the longitudinal axis of said level body; and

wherein said means for allowing the laser beam to exit said level body includes said window being curvedly extended through said range of about 0°

to about 90°

from the longitudinal axis of said level body.

2. The device as described in claim 1, wherein said means for variably directing includes:

a housing rotatably positioned within said level body;

wherein said means for emitting a laser beam is mounted in said housing; and

wherein said housing has an opening that allows said housing to rotate about a wire connecting said means for emitting a laser beam to a power source.

3. The device as described in claim 2, further comprising a member extended within the opening of said housing for preventing excessive rotation of said housing.

4. The device as described in claim 1, wherein said means for emitting a laser beam includes a laser module assembly.

5. The device as described in claim 1, wherein said window forms a convexed portion of said level body.

6. The device as described in claim 1, wherein said window is coupled with said level body using L-shaped members.

7. A device for leveling and squaring, comprising:

a level body;

a means for leveling coupled with said level body;

a means contained within said level body for emitting a visible laser beam therefrom;

a housing rotatably positioned within said level body, said means for emitting a laser beam is mounted in said housing;

wherein said housing variably redirects said means for emitting a laser beam;

wherein said housing has an opening that allows said housing to rotate about a wire connecting said means for emitting a laser beam to a power source; and

a means for allowing the variably redirected laser beam to exit said level body.

8. The device as described in claim 7, wherein said means for allowing the laser beam to exit said level body includes a window extended throughout a range of about 0°

to about 90°

from a longitudinal axis of said level body.

9. The device as described in claim 8, wherein said window is curvedly extended.

10. The device as described in claim 9, wherein said window forms a convexed portion of said level body.

11. The device as described in claim 7, wherein said means for allowing the laser beam to exit said level body includes a window extended from a portion of said level body near a longitudinal axis thereof to a portion of said level body about 90°

from the longitudinal axis.

12. The device as described in claim 7, wherein said means for allowing said laser beam to exit said level body includes a window which is coupled with said level body using L-shaped members.

13. The device as described in claim 7, further comprising a member extended within the opening of said housing for preventing excessive rotation of said housing.

14. A device for leveling and squaring, comprising:

a level body;

a means for leveling coupled with said level body;

a laser module assembly contained within said level body for emitting a visible laser beam therefrom;

a housing rotatably positioned within said level body, said laser module assembly is mounted in said housing;

wherein said housing variably redirects the laser beam through a range of about 0°

to about 90°

from a longitudinal axis of said level body;

a window having means for allowing the laser beam to exit said level body throughout said range of about 0°

to about 90°

from the longitudinal axis of said level body; and

wherein said means for allowing the laser beam to exit said level body includes said window being curvedly extended from a portion of said level body near the longitudinal axis to a portion of said level body about 90°

from the longitudinal axis.

15. The device as described in claim 14, wherein said housing has an opening that allows said housing to rotate about a wire connecting said laser module assembly to a power source.

16. The device as described in claim 15, further comprising a member extended within the opening of said housing for preventing excessive rotation of said housing.

17. The device as described in claim 14, wherein said window forms a convexed portion of said level body.

18. The device as described in claim 14, wherein said window is coupled with said level body using L-shaped members.