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:
Nov. 03, 1992
Filed:
Mar. 08, 1991
Applicant:
Inventors:
Armin Spiegel, Berneck, CH;
Wolfgang Rebhandl, Dornbirn, AT;
Assignee:
Leica Heerbrugg AG, Heerbrugg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
33227 ; 33250 ; 33299 ; 33292 ; 33228 ;
Abstract
A device for centering geodetic instruments over defined ground marks or defined position marks is described, in which a visible light beam is projected onto a ground mark or position mark. In an advantageous additional feature, the light beam of the invention can be used to measure the distance between the sighting line of the geodetic instrument and the sighted ground mark or position mark.