WO1996032854B1 - Cigarette and heater for use in an electrical smoking system - Google Patents

Cigarette and heater for use in an electrical smoking system

Info

Publication number
WO1996032854B1
WO1996032854B1 PCT/US1996/005417 US9605417W WO9632854B1 WO 1996032854 B1 WO1996032854 B1 WO 1996032854B1 US 9605417 W US9605417 W US 9605417W WO 9632854 B1 WO9632854 B1 WO 9632854B1
Authority
WO
WIPO (PCT)
Prior art keywords
tobacco
heater
web
cigarette
heater blade
Prior art date
Application number
PCT/US1996/005417
Other languages
French (fr)
Other versions
WO1996032854A2 (en
WO1996032854A3 (en
Filing date
Publication date
Priority claimed from US08/425,837 external-priority patent/US5499636A/en
Priority claimed from US08/425,166 external-priority patent/US5692525A/en
Priority claimed from US08/426,165 external-priority patent/US5591368A/en
Priority to UA97115566A priority Critical patent/UA49831C2/en
Priority to AT96912902T priority patent/ATE242980T1/en
Priority to PL96342501A priority patent/PL182701B1/en
Priority to BR9608201A priority patent/BR9608201A/en
Priority to HU9800981A priority patent/HU228654B1/en
Priority to JP53192396A priority patent/JP3996188B2/en
Priority to AU55651/96A priority patent/AU711837B2/en
Priority to RO97-01944A priority patent/RO120750B1/en
Priority to DE69628745T priority patent/DE69628745T2/en
Application filed filed Critical
Priority to MX9708035A priority patent/MX9708035A/en
Priority to NZ306882A priority patent/NZ306882A/en
Priority to CA002218595A priority patent/CA2218595C/en
Priority to SK1425-97A priority patent/SK284345B6/en
Priority to EA199700332A priority patent/EA000244B1/en
Priority to DK96912902T priority patent/DK0822760T3/en
Priority to PL96324378A priority patent/PL182861B1/en
Priority to SI9630632T priority patent/SI0822760T1/en
Priority to EP96912902A priority patent/EP0822760B1/en
Publication of WO1996032854A2 publication Critical patent/WO1996032854A2/en
Publication of WO1996032854A3 publication Critical patent/WO1996032854A3/en
Publication of WO1996032854B1 publication Critical patent/WO1996032854B1/en
Priority to BG101950A priority patent/BG63615B1/en
Priority to NO19974712A priority patent/NO317865B1/en

Links

Abstract

A cigarette (23) comprises a tobacco rod having filled and unfilled portions arranged so that electrical heater elements (37) may overlap both portions. The rod includes a tubular tobacco web. The web is constructed by converting tobacco feedstock into a continuous sheet of tobacco web and converting the continuous sheet of tobacco web into one or ore bobbins of tobacco web suitable for automated manufacture of cigarettes. A heater (25) comprises a supporting hub and electrically resistive heater blades (37) defining a receptacle (27) for an inserted cigarette (23). Each blade comprises first and second heater blade legs each having a first end and a second end, and a connecting section connecting the second end of the first leg and the first end of the second leg. The blades (37) are heated by a resistive heating circuit and heat the inserted cigarette (23). The legs are separated by a gap to permit entrainment of flavour substances upon drawing.

Claims

AMENDED CLAIMS
[received by the International Bureau on 10 February 1997 (10.02.97);
original claims 39 and 48-50 amended; remaining claims unchanged (4 pages)]
3B. The cigarette as claimed in claim 37 further comprising a plug of cut filler (80) adjacent a free end (78) of said tobacco rod (60), at least one tubular free-flow filter (74) adjacent an opposite end (72) of said tobacco rod and a filler-free void (91) located between said plug of cut filler and said tubular free-flow filter.
39. A method of manufacturing a tobacco web (66) comprising a base web (68) and a layer of tobacco material (70), said tobacco web being foldable into a tubular form as part of a cigarette (22) operative with an electrical cigarette lighter (25), said method comprising the steps of:
separating solubles (124) from fibers of tobacco feedstock, said solubles being in solution comprising 5 to 10% by weight dissolved tobacco constituents;
producing (128) said base web by forming a slurry of said separated tobacco fiber, mixing said slurried tobacco-fiber with a slurry strengthening agent to form a slurried mixture and casting (130) said slurried mixture onto a web forming apparatus; producing (146) said tobacco material by mixing said 5 to 10% solution of tobacco constituents with additional tobacco particles, glycerin and pectin so as to form a dispersion of tobacco material and adjusting water content so as to achieve in said dispersion a solids content in the range of approximately 20 to 30%;
applying (144) said dispersion of tobacco material along said base web to form a sheet of said tobacco web;
drying (146) said sheet of said tobacco web to a moisture content in the range of approximately 8.5 to 12%;
cooling (148) said sheet of said tobacco web;
decurling (150) said sheet of said tobacco web; winding (152) said sheet of said tobacco web so as to form a roll of tobacco web; and
slitting (154) said roll of tobacco web so as to produce a bobbin of tobacco web.
40. The method as claimed in claim 39, wherein said solution of tobacco solubles comprises approximately 7 to 8% by weight dissolved tobacco constituents.
41. The method as claimed in claim 40, wherein the amount of water is adjusted to achieve at the conclusion of the mixing step a dispersion of approximately 24 to 25% solids content.
42. The method as claimed in claim 41, wherein the tobacco particles are in the range of approximately 100 to 220 mesh.
43. The method as claimed in claim 42, wherein the tobacco particles are approximately 120 mesh.
44. The method as claimed in any of claims 40 to 43 wherein said slurry strengthening agent comprises at least one of wood pulp, flax pulp and tobacco seem pulp.
45. The method as claimed in any of claims 40 to 44, wherein said applying step includes applying said dispersion of tobacco material to said base web at dry weight ratio of at least 2:1.
46. The method as claimed in any of claims 40 to 45, wherein said applying step includes applying said dispersion of tobacco material to said base web at dry weight ratio of at least 3:1.
47. The tobacco web as claimed in claim 36, wherein said tobacco fibre is at a component basis weight of approximately 24 to 28 g/m3, carbon fibre is at a component basis weight of
approximately 2 to 4 g/m2 and pectin is at a component basis weight of 2.5 to 1.5 g/m2.
48. A heater (39) for use in a smoking system haying a source of electrical energy for heating a cigarette, the heater comprising: a plurality of electrically resistive heater blades {121) defining a receptacle to receive an inserted cigarette and extending alongside the inserted cigarette, each blade comprising a first heater blade leg (116A) having a first end and a second end, a second heater blade leg (116B) having a first end and a second end (122), and a connecting section (118) connecting the second end of said first heater blade leg and the first end of said second heater blade leg;
wherein said first and second heater blade legs of each heater blades are separated by a respective gap (125); and
wherein the first ends of said first heater blade leg are adapted to be in electrical contact with the source of electrical energy, wherein respective resistive heating paths are formed comprising said first heater blade leg, said connecting section, and said second heater blade leg to respectively heat each of said electrically resistive heater blades along said first and second blades, which in turn heat the inserted cigarette, said first ends of said first blades having a common connection.
49. The heater according to claim 48, wherein the first ends of said first heater blade legs (116A) are grounded.
50. The heater according to claim 48 or 49, wherein the common connection of the first ends of said first heater blade legs is a hub.
51. The heater according to any of claims 48 to 50 wherein the gap (125) separating said first and second heater blade legs is sized to permit entrainment of air flow into the heated cigarette upon drawing by a smoker.
52. The heater according to any of claims 48 to 51 further comprising a supporting hub (110), the first ends of each of said first heater blade legs (116A) extending from said supporting hub;
wherein said supporting hub is adapted to be in electrical contact with the source of electrical energy to form a common for the first ends of said first heater blade legs.
53. The heater according to claim 52, wherein the second ends of said second heater blade legs (116B) are adapted to be in
respective electrical contact with the source of electrical energy, wherein respective resistive heating circuits are formed comprising said first heater blade leg, said connecting edge section, and said second heater blade to respectively heat each of said electrically resistive heater blades (121), which in turn heats the inserted cigarette.
54. The heater according to claim 52 or 53, wherein the second ends (122) of said second heater blade legs (116B) extend toward
PCT/US1996/005417 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system WO1996032854A2 (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
PL96324378A PL182861B1 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electric smoking simulator
SI9630632T SI0822760T1 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
EP96912902A EP0822760B1 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
NZ306882A NZ306882A (en) 1995-04-20 1996-04-19 Smoking system including a cigarette and a reusable lighter
PL96342501A PL182701B1 (en) 1995-04-20 1996-04-19 Electric cigarette smoking system comprising a cigarette and a cigarette lighter
BR9608201A BR9608201A (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoke system
HU9800981A HU228654B1 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
JP53192396A JP3996188B2 (en) 1995-04-20 1996-04-19 Heater and cigarette for use in electric smoking equipment
AU55651/96A AU711837B2 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
RO97-01944A RO120750B1 (en) 1995-04-20 1996-04-19 Cigarette and heating element to be used in an electric smoking system
DE69628745T DE69628745T2 (en) 1995-04-20 1996-04-19 CIGARETTE AND HEATING DEVICE FOR AN ELECTRIC SMOKING SYSTEM
UA97115566A UA49831C2 (en) 1995-04-20 1996-04-19 Electrical smoking system (variants), cigarette (variants) and heater used in this system, method of improvement of smoke production, tobacco envelope (variants) and method for production of tobacco envelope
MX9708035A MX9708035A (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system.
AT96912902T ATE242980T1 (en) 1995-04-20 1996-04-19 CIGARETTE AND HEATING DEVICE FOR AN ELECTRIC SMOKING SYSTEM
CA002218595A CA2218595C (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
SK1425-97A SK284345B6 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
EA199700332A EA000244B1 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system
DK96912902T DK0822760T3 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electric smoking system
BG101950A BG63615B1 (en) 1995-04-20 1997-10-08 Cigarette and heater in an electric smoking system
NO19974712A NO317865B1 (en) 1995-04-20 1997-10-10 Cigarette and heating element for use in an electric smoke system

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/425,837 US5499636A (en) 1992-09-11 1995-04-20 Cigarette for electrical smoking system
US08/426,165 US5591368A (en) 1991-03-11 1995-04-20 Heater for use in an electrical smoking system
US08/426,165 1995-04-20
US08/425,837 1995-04-20
US08/425,166 1995-04-20
US08/425,166 US5692525A (en) 1992-09-11 1995-04-20 Cigarette for electrical smoking system

Publications (3)

Publication Number Publication Date
WO1996032854A2 WO1996032854A2 (en) 1996-10-24
WO1996032854A3 WO1996032854A3 (en) 1997-01-23
WO1996032854B1 true WO1996032854B1 (en) 1997-03-13

Family

ID=27411456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/005417 WO1996032854A2 (en) 1995-04-20 1996-04-19 Cigarette and heater for use in an electrical smoking system

Country Status (30)

Country Link
EP (1) EP0822760B1 (en)
JP (1) JP3996188B2 (en)
CN (1) CN1113620C (en)
AR (1) AR002035A1 (en)
AT (1) ATE242980T1 (en)
AU (1) AU711837B2 (en)
BR (1) BR9608201A (en)
CA (1) CA2218595C (en)
DE (1) DE69628745T2 (en)
DK (1) DK0822760T3 (en)
DO (1) DOP1996005265A (en)
DZ (1) DZ2022A1 (en)
EA (1) EA000244B1 (en)
ES (1) ES2202437T3 (en)
HR (1) HRP960185A2 (en)
HU (1) HU228654B1 (en)
MA (1) MA23846A1 (en)
MX (1) MX9708035A (en)
MY (1) MY119710A (en)
NO (1) NO317865B1 (en)
NZ (1) NZ306882A (en)
OA (1) OA10628A (en)
PL (2) PL182861B1 (en)
PT (1) PT822760E (en)
RO (1) RO120750B1 (en)
SK (1) SK284345B6 (en)
TR (1) TR199701210T1 (en)
TW (1) TW318780B (en)
UY (1) UY24207A1 (en)
WO (1) WO1996032854A2 (en)

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