Apparatus for inserting objects into a filter component of a smoking article and associated method

Patent metadata

Field	Value
Publication number	US-10383359-B2
Application number	US-201514843405-A
Country	US
Kind code	B2
Filing date	Sep 2, 2015
Priority date	Jun 11, 2007
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

Apparatuses are provided for manufacturing a rod member for a cigarette filter element. Each rod member defines a longitudinal axis and includes a generally longitudinally-extending filter material and a plurality of objects disposed therein along the longitudinal axis. Such an apparatus comprises a rod-forming unit configured to form a continuous supply of a filter material into a continuous cylindrical rod member. An object insertion unit is configured to introduce a plurality of objects into engagement with the rod member. A rod-dividing unit is configured to divide the rod member into a plurality of rod portions such that each rod portion includes a plurality of the objects. Associated methods are also provided.

First claim

The invention claimed is:

1. A method for providing a rod for use in the manufacture of cigarette filter elements, the rod having a length and defining a longitudinal axis, the method comprising:
forming a continuous supply of filter material into a continuous rod;
subdividing the continuous rod, at predetermined length intervals along the longitudinal axis, into a plurality of rod portions; and
positioning a continuous chain of objects within the filter material wherein, when the continuous rod having the continuous chain of objects disposed therein is subdivided, the continuous chain of objects is severed so that each rod portion includes more than one of the objects disposed therein.

2. A method according to claim 1 wherein positioning a plurality of objects further comprises:
supplying the continuous chain of objects, each object being attached to an adjacent object to form the continuous chain; and
introducing the continuous chain into the filter material.

3. A method according to claim 2 wherein supplying a continuous chain further comprises supplying a continuous chain of the plurality of objects from a bobbin having the continuous chain wrapped thereabout.

4. A method according to claim 1 wherein positioning a continuous chain of objects further comprises: wherein
receiving a plurality of objects within a tubular member wherein the objects are disposed therein; and
introducing the tubular member into the filter material.

5. A method according to claim 1 wherein positioning a continuous chain of objects further comprises:
supplying a continuous elongate member having a plurality of objects attached thereto; and
engaging the continuous elongate member with the filter material.

6. A method according to claim 5 wherein supplying a continuous elongate member further comprises supplying a continuous elongate member comprising a continuous strand having the objects attached thereto wherein the objects are disposed along the strand.

7. A method according to claim 5 wherein supplying a continuous elongate member further comprises supplying a continuous elongate member from a bobbin having the continuous elongate member wrapped thereabout, and wherein engaging the continuous elongate member further comprises feeding the elongate member from the bobbin into engagement with the filter material.

8. A method according to claim 5 wherein the continuous elongate member has a laterally-extending width, and the method further comprises continuously width-wise wrapping the elongate member about the plurality of objects attached thereto, wherein engaging the continuous elongate member further comprises feeding the objects wrapped by the continuous elongate member into the filter material.

9. A method according to claim 5 wherein the continuous elongate member has a laterally-extending width, and wherein engaging the continuous elongate member further comprises continuously width-wise wrapping the elongate member about the filter material to engage the objects therewith prior to subdividing the continuous rod.

10. A method according to claim 1 wherein positioning a continuous chain of objects further comprises:
supplying a continuous elongate member discrete from the plurality of objects; and
engaging the continuous elongate member with the filter material.

11. A method according to claim 10 wherein supplying a continuous elongate member further comprises supplying a continuous elongate member comprising a continuous strand.

12. A method according to claim 10 wherein supplying a continuous elongate member further comprises supplying a continuous elongate member from a bobbin having the continuous elongate member wrapped thereabout.

13. A method according to claim 1 further comprising providing a continuous supply of wrapping material, and continuously applying the wrapping material about the filter material prior to the continuous rod being subdivided.

14. A method according to claim 1 wherein positioning a continuous chain of objects further comprises:
directing the supply of filter material through a first entrance at one end of a tongue;
directing the continuous rod incorporating the filter material and the continuous chain of objects generally longitudinally through an exit at the other end of the tongue; and
introducing the continuous chain of objects into the filter material through a second entrance of the tongue, the second entrance being physically separate from the first entrance.

15. A method according to claim 14 wherein introducing the continuous chain of objects further comprises defining a path of travel of the continuous chain of objects via a tube extending through the second entrance defined by an upper face of the tongue.

16. A method according to claim 15 wherein defining the path of travel further comprises defining a path of travel of the continuous chain of objects via a tube configured to extend into the path of travel of the filter material.

Assignees

• Reynolds Tobacco Co R

Inventors

• Stokes Cynthia Stewart
• Nelson John Larkin
• Barnes Vernon Brent
• Dube Michael Francis

Classifications

• A24D3/025

  Final operations, i.e. after the filter rod forming process (A24D3/0275 takes precedence) · CPC title

• A24D3/0216 Primary

  the additive being in the form of capsules, beads or the like · CPC title

• A24D3/061

  containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking · CPC title

• A24D3/0229

  Filter rod forming processes (A24D3/0275 takes precedence) · CPC title