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:
Jul. 19, 1994
Filed:
Oct. 09, 1992
Applicant:
Inventors:
Wilfried Piske, Heerbrugg, CH;
Martin Koeppel, Widnau, CH;
Assignee:
Leica Heerbrugg AG, Herbrugg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356138 ; 33DI / ; 359834 ;
Abstract
An apparatus for aligning a laser leveling instrument along a building line can remain standing unchanged on its base throughout both horizontal and vertical leveling operations. The light source is located in the base of the instrument. The instrument head can be swung through 90.degree. and houses a rotating prism which generates the vertical plane, and an adaptor. The adaptor includes a prism for deflecting the light from the source into the rotating prism and a triple prism which, when brought into the light path, deflects the light coming from the base perpendicular to the generated vertical plane, projecting it onto the building line.