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:
Jan. 07, 2020
Filed:
Aug. 28, 2014
British American Tobacco (Investments) Limited, London, GB;
Julian Dennis White, Cambridge, GB;
Martin John Horrod, Cambridge, GB;
Andrew Jonathan Bray, London, GB;
Gary Fallon, London, GB;
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, London, GB;
Abstract
An apparatus () for detecting a substance in a rod shaped article of the tobacco industry (), the apparatus () including one or more sources () of electromagnetic radiation, one or more detectors () and a processor (). The one or more sources () are configured to generate electromagnetic radiation at first and second wavelengths (λ). The one or more detectors () are configured to detect the first and second wavelengths (λ) after propagation in the rod shaped article (), lo and to generate signals (A, B) based on the amount of radiation received at each wavelength (λ). The processor () is configured to process the signals (A, B) to determine information relating to the presence of the substance, based on the relative amount of radiation received at the first and second wavelengths.