Apparatus for producing a visible line of light on a...

Details Apparatus for producing a visible line of light on a... Apparatus for producing a visible line of light on a...

2007-10-30

2007-10-30

Fulton, Christopher W (Department: 2859)

Geometrical instruments

Straight-line light ray type

Alignment device

C033S227000, C033SDIG021

Reexamination Certificate

active

10721008

ABSTRACT:
An apparatus and method for efficiently generating a visible line of light on a surface such as a wall or a floor for the purpose of facilitating the layout process used in construction. Reference marking elements on the instrument correspond to the light beam's position. One or more level vials may be included for indicating vertical and horizontal, as well as a magnet for mounting and a reference bracket for a stud-finder instrument. In one embodiment the instrument is self-leveling on one axis only and is useful for projecting one or more orthogonal lines on a wall surface. The instrument, self-leveling or not, can be combined with a stud finder.

REFERENCES:
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patent: 7013570 (2006-03-01), Levine et al.
patent: 7031367 (2006-04-01), Marshall et al.

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