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.
Patent No.:
Date of Patent:
Mar. 20, 2001
Filed:
Mar. 08, 1999
Applicant:
Inventor:
Joseph F. Rando, Los Altos Hills, CA (US);
Assignee:
Levelite Technology, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 1/500 ; G01C 1/00 ; G02B 7/02 ;
U.S. Cl.
CPC ...
G01C 1/500 ; G01C 1/00 ; G02B 7/02 ;
Abstract
An apparatus and method for generating two or more visible lines of light on a floor for the purpose of facilitating the layout process used in construction. The apparatus comprises a light beam generator producing two or more beams of light at 90° to each other and in a plane parallel to the plane of the floor. Subsequently cylinder lenses on the apparatus spread the beams and position them on the floor or target providing visible reference lines.