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:
Jul. 19, 2016
Filed:
Mar. 04, 2013
Montrade S.r.i., Bologna, IT;
Antonella Giannini, Bologna, IT;
Alberto Monzoni, Bologna, IT;
MONTRADE S.R.L., , IT;
Abstract
A method and machine for producing paperless filter rods for smoking articles, according to which a tow band of hardening-material-impregnated filtering material is fed along a forming beam having a first portion along which the tow band is injected with steam to cause the hardening material to react, and a second portion along which the tow band is dried with air, coming out from the forming beam, a continuous paperless rigid rod filter, which is fed to a cutting device; the steam blowing being performed at a plurality of stations arranged in series along the first portion; and the steam being fed, at each station, into an accumulation chamber surrounding the forming channel and communicating with the forming channel through an annular nozzle arranged on a transverse plane to the forming channel and having a constant width, measured along an axis of the forming channel, of 0.3 to 0.9 mm.