Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Cigarette filter making
Patent
1992-03-06
1993-08-10
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Control means energized in response to activator stimulated...
Cigarette filter making
493 47, 493 49, A24D 302, A24D 304, A24D 316
Patent
active
052343979
ABSTRACT:
A continuous tow of filamentary filter material is advanced past a rotary applicator which delivers metered but variable quantities of a second filter material (such as granulated or pulverulent charcoal) into successive increments of the tow. The tow and the delivered second filter material are thereupon draped into a web of wrapping material to form a filter rod which is sub-divided into sections of desired length. The density and/or the mass of the filter rod or of successive filter rod sections is monitored and the results of such monitoring operation are utilized to regulate the rate of delivery of second filter material so that the mass or density of the rod remains constant. The draw resistance of the filter rod or of filter rod sections can be monitored to generate signals which are used to regulate the rate of advancement of the tow toward the draping station and to thus maintain the draw resistance at least substantially constant.
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Lorenzen Heinz-Christen
Wahle Gunter
Kontler Peter K.
Korber AG
Terrell William E.
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