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:
Apr. 11, 2006
Filed:
May. 01, 2002
Rainer Herrmann, Hamburg, DE;
Rainer Herrmann, Hamburg, DE;
TEWS Elektronik, Hamburg, DE;
Abstract
Apparatus and method for determining the triacetin content in cigarette filter plugs during the manufacture of the filter plugs from a filter tow. The apparatus including a filter tow storage container, a filter tow stretching device, a device for feeding triacetin, to the filter tow, a plug-forming device, a device for dividing the plug into portions, a first microwave sensor disposed downstream of the plug-forming device, and a second microwave sensor disposed upstream of the feed device for the triacetin. The triacetin content is determined by transmitting a high frequency electromagnetic field through the filter plug both before and after the triacetin is added and measuring the frequency shift and spread of the electromagnetic field to determine mass signals Aand A, respectivley. Ais compared to Ato calculate the triacetin content of the filter plug.