The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 30, 2007

Filed:

Nov. 24, 2003
Applicant:

Gary Goodrich, Union City, CA (US);

Inventor:

Gary Goodrich, Union City, CA (US);

Assignee:

Trimble Navigation Limited, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 15/02 (2006.01); G01B 11/26 (2006.01); B43L 13/00 (2006.01);
U.S. Cl.
CPC ...
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.


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