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:
Feb. 25, 2020
Filed:
Sep. 29, 2015
Ft System S.r.l., Alseno, IT;
Fabio Forestelli, Alseno, IT;
Massimo Fedel, Padua, IT;
FT SYSTEM S.R.L., Alseno, IT;
Abstract
A group and method for measuring the pressure in closed containers made from optically transparent material at least at a portion of a top space without contacting the containers, and a filling and/or packaging plant using the measuring group. The measuring group comprises an inspection area; a laser source with optical axis for the emission of a laser beam at a wavelength tunable with an absorption wavelength of a gas contained in a container top space; at least one detector to detect the laser beam once it has travelled through the inspection area to provide an absorption spectrum of said gas; a device for detecting the signal acquisition time period corresponding to the passage of a top space through the inspection area; having means for identifying signal contributions useful for the pressure measurement amongst the data representative of an absorption spectrum acquired during the signal acquisition time period.