IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0748234
(2010-03-26)
|
| 등록번호 |
US-8671951
(2014-03-18)
|
|
발명자
/ 주소 |
- Ercelebi, Ahmet
- Garthaffner, Martin T.
- Williams, Dwight D.
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
37 |
초록
▼
A cigarette filter subassembly is manufactured from a filter member having absorbent material encased within an outer cover. A plunger is passed axially through the absorbent material such that a pointed leading end of the plunger displaces the absorbent material radially outwardly against the cover
A cigarette filter subassembly is manufactured from a filter member having absorbent material encased within an outer cover. A plunger is passed axially through the absorbent material such that a pointed leading end of the plunger displaces the absorbent material radially outwardly against the cover to form a liner of compressed absorbent material along the cover's inside surface. An inner surface of the liner surrounds a hollow axial opening which is to receive absorbent members and capsules inserted axially therein. The capsules are adapted to be broken by a smoker to release an additive material which modifies characteristics of tobacco smoke. An outer cylindrical surface of the plunger optionally carries a transferable binder material that becomes smeared onto the inner surface of the liner to form thereon a coating which is impermeable to the additive material released from the capsule.
대표청구항
▼
1. A method of manufacturing cigarette filter subassemblies comprising the steps of: A. providing a filter member comprised of absorbent material surrounded by a cover, the filter member defining a longitudinal center axis;B. passing a plunger axially through the absorbent material such that a gener
1. A method of manufacturing cigarette filter subassemblies comprising the steps of: A. providing a filter member comprised of absorbent material surrounded by a cover, the filter member defining a longitudinal center axis;B. passing a plunger axially through the absorbent material such that a generally pointed leading end of the plunger displaces the absorbent material radially outwardly, wherein the displaced absorbent material forms a liner along an inside surface of the cover and defines a hollow axial opening within the absorbent material;C. axially inserting at least one absorbent member and at least one capsule into the hollow space, the capsule containing a releasable material for modifying characteristics of tobacco smoke during smoking; andD. providing a coating on an inner surface of the liner which is substantially impermeable to the releasable material in the at least one capsule prior to step C, wherein the coating is provided by applying to an outer cylindrical surface of the plunger, a binder material which is transferred to the inner surface of the liner as the liner is being formed. 2. The method according to claim 1, wherein the binder material is triacetin. 3. The method according to claim 1, wherein a series of absorbent members are inserted during step C, with at least one capsule disposed between successive absorbent members, to form an elongate filter structure which is cut to suitable length; each length containing at least one absorbent member and at least one capsule. 4. The method according to claim 3, wherein only one capsule is provided between successive absorbent members. 5. The method according to claim 1 wherein each capsule includes an outer shell comprising a flexible wall covered by a more brittle coating. 6. The method according to claim 1, wherein said at least one absorbent member is substantially cylindrical. 7. The method according to claim 1, wherein said at least one absorbent member is comprised of cellulose acetate. 8. The method according to claim 1, wherein said fluid material contained within the at least one capsule is a liquid or a vapor. 9. The method according to claim 3, further comprising the step of: cutting every other absorbent member in said series of absorbent members at its axial midpoint to provide two dual-filter structures, each of said dual-filter structures comprising, in series, one half of a first absorbent member of twice the length of the first absorbent member, a first capsule, a second absorbent member, a second capsule, and one half of a third absorbent member, all disposed within said outer cover. 10. A method of forming a cigarette comprising the step of forming a cigarette subassembly according to claim 1, and attaching a cigarette rod to one end thereof. 11. A method of forming cigarettes comprising the step of forming a dual-filter structure according to claim 5 and attaching cigarette rods to respective ends thereof, and cutting the second absorbent member in half. 12. The method according to claim 5, further comprising the steps of: providing a series of additional absorbent members, with one of said dual-filter structures being provided between adjacent additional absorbent members; and/orproviding a quantity of activated carbon between each of said additional absorbent members and said adjacent dual-filter structure. 13. The method according to claim 7, further comprising the step of: cutting every other one of said series of additional absorbent members substantially midway between adjacent dual-filter structures, said step of cutting producing quad subassemblies,each of said quad subassemblies comprising one half of a first additional absorbent member, a first quantity of activated carbon, a first dual-filter structure, a second quantity of activated carbon, a second additional absorbent member, a third quantity of activated carbon, a second dual-filter structure, a fourth quantity of activated carbon, and one half of a third additional absorbent member. 14. The method according to claim 8, further comprising the steps of: cutting each of said dual-filter structures midway between adjacent capsules; andcutting each of said second additional absorbent members midway between adjacent dual-filter structures,whereby an individual cigarette filter subassembly is provided. 15. The method according to claim 9, further comprising the steps of: providing an additional absorbent member between adjacent pairs of said individual cigarette filter subassemblies to form a dual cigarette filter assembly;providing a tobacco rod generally adjacent each end of said dual cigarette filter assembly;joining the tobacco rods to the dual cigarette filter assembly with tipping paper; andcutting said additional absorbent member substantially midway between said adjacent pairs of said individual cigarette filter subassemblies to form individual cigarettes.
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