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:
May. 01, 1990
Filed:
Aug. 15, 1988
Applicant:
Inventors:
Assignee:
Agfa-Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250372 ; 250339 ; 250341 ;
Abstract
An apparatus for on-line measurement of the layer thicknesses of moving flexible layer supports over the whole width of the web by photoelectric means is described. A light source (2) which emits UV light passes a beam of parallel or slightly converging rays through the layer support (1), the transmitted light is registered by a photoelectric receiver (3) which is sensitive to UV light and the registered signal is transmitted to an electronic interpretation mechanism (5) from which the layer thickness is determined and recorded on-line once calibration has been carried out (FIG. 1).