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US 7,588,524 B2Granted
Fiber filter production
AssigneeHauni Maschinenbau AG
InventorsStephan Wolff, Thorsten Scherbarth, Soenke Horn, Irene Maurer, Alexander Buhl, Jann De Boer
Life of this patent
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Abstract
Method and device for producing filter rods of the tobacco-processing industry. The method includes combining and mixing fibers of finite length of two different fiber types, and separating the combined and mixed fibers. The combining and mixing occurs directly before the separating.
Claims28
A method for producing filter rods of the tobacco-processing industry, comprising:
- combining and mixing fibers of finite length of two different fiber types;
- separating the combined and mixed fibers in a separating device, wherein the combining and mixing occurs directly before the separating;
- and
- flinging the separated fibers into a suction duct that is directly connected to the separating device and that is vertically arranged with an upper end terminating at a suction rod conveyor.
1 more element
A method for producing filter rods of the tobacco-processing industry comprising:
- accumulating fibers of finite length of at least one fiber type;
- separating the fibers in a separating device;
- and
- flinging the separated fibers exiting the separating device into a suction duct that is directly connected to the separating device and that is vertically arranged with an upper end terminating at the suction rod conveyor, whereby the separated fibers exiting the separating device have a motion component against gravity toward the suction rod conveyor.
1 more element
A device for producing filter rods of the tobacco-processing industry, comprising:
- at least two fiber feed ducts opening into a mixing duct;
- a separating device connected to the mixing duct;
- a conveyor structured and arranged to receive separated fibers of finite length;
- and
- a suction duct connected directly to the separating device, wherein the suction duct is aligned essentially vertically and terminates with the conveyor,
- wherein the conveyor is a suction rod conveyor arranged at an upper end of the suction duct.
3 more elements
Dependencies are inferred from the claim text.