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:
Jun. 07, 1977
Filed:
Oct. 24, 1975
Applicant:
Inventors:
Josef Theurer, Vienna, OE;
Klaus Riessberger, Vienna, OE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
33287 ; 33 / ; 33146 ; 33338 ;
Abstract
A mobile track surveying apparatus comprises two spaced-apart bogies. Track gage and superelevation measuring devices as well as track grade and lateral alignment measuring devices are mounted on the two bogies, the latter including a theodolite mounted on a carrier plate on one bogie and a target mounted on a carrier plate on the other bogie, the theodolite and target defining an optical reference line determining the grade and alignment of the track.