Laser leveling system

Details Laser leveling system Laser leveling system

2003-05-16

2004-10-19

Bennett, G. Bradley (Department: 2859)

Geometrical instruments

Straight-line light ray type

Level

C033S286000

Reexamination Certificate

active

06804893

ABSTRACT:

FIELD OF THE INVENTION
This invention relates generally to laser leveling system, apparatus and method particularly, adapted for use in construction projects, and more particularly for construction projects where it is necessary to position a variety of components of the building structure at various locations and at specific height locations (e.g. cabinets, bookshelves, countertops, etc.).
BACKGROUND OF THE INVENTION
There are numerous situations in the construction industry where it is necessary to ascertain elevation locations, and also to locate various components at precise elevations. This is a task that confronts surveyors, carpenters, brick layers, and others. For a number of decades, laser instruments have been utilized to establish locations and/or elevations.
U.S. Pat. No. 6,256,895 discloses a leveling system for such purpose.
FIG. 1
shows a simplified version of the leveling system described in U.S. Pat. No. 6,256,895. For further information on the system, persons skilled in the art are referred to U.S. Pat. No. 6,256,895.
Referring to
FIG. 1
, the leveling system includes a lower post
14
disposed on floor
20
, an upper post
12
slidably disposed within lower post
14
and contacting ceiling
24
, a laser mounting section
16
slidably disposed on lower post
14
, and a laser instrument
18
disposed on laser mounting section
16
.
The laser mounting section
16
can move along the lower post
14
. Once the exact position of the laser mounting section
16
(and of laser instrument
18
) is selected, the user can lock the laser mounting section
16
and laser instrument in place by rotating a screw
16
S.
In addition, upper post
12
can telescope within lower post
14
. Accordingly, the overall height of the leveling system can be adjusted as necessary. The height is then fixed by rotating a screw
14
S.
SUMMARY OF THE INVENTION
In accordance with the present invention, an improved leveling system is employed. The leveling system including a first post for contacting an upper surface, a second post for contacting a lower surface, wherein one of the first and second posts telescopes within the other of the first and second posts, a locking assembly disposed on the one of the first and second posts, and a mount assembly for supporting a laser instrument.
Additional features and benefits of the present invention are described, and will be apparent from, the accompanying drawings and the detailed description below.


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M. Passier, Partial European Search Report of Application No. EP 03 01 2688, Jul. 2, 2003, Munich.

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