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. 29, 1977
Filed:
Jul. 03, 1975
Applicant:
Inventors:
Tiziano Tirabassi, Carpi, IT;
Giorgio Giovanelli, Bologna, IT;
Giulio Cesari, Bologna, IT;
Ubaldo Bonafe, Bologna, IT;
Ottavio Vittori Antisari, Bologna, IT;
Assignee:
Tecneco S.p.A., Fano (Pesaro), IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
356 96 ;
Abstract
The present invention provides an optical instrument for measuring concentrations of polluting gases on long and short geometric paths. The apparatus comprises a telescope for focussing a ray of light into a spectrometer, a comparison cell containing a known concentration of a polluting gas, control means and an electronic apparatus adapted to determine the concentration of the polluting gas in the analytical sample.