US3723051A - Cigarette lighter using microencapsulated fuel - Google Patents

Cigarette lighter using microencapsulated fuel Download PDF

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Publication number
US3723051A
US3723051A US00101288A US3723051DA US3723051A US 3723051 A US3723051 A US 3723051A US 00101288 A US00101288 A US 00101288A US 3723051D A US3723051D A US 3723051DA US 3723051 A US3723051 A US 3723051A
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United States
Prior art keywords
burner
cigarette lighter
fuel
conveying surface
paste
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00101288A
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English (en)
Inventor
D Bouvier
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ST Dupont SA
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ST Dupont SA
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Publication date
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Publication of US3723051A publication Critical patent/US3723051A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/30—Lighters characterised by catalytic ignition of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/18—Lighters with solid fuel
    • F23Q2/24—Lighters with solid fuel ignition pills or strips with inflammable parts

Definitions

  • ABSTRACT [30] Foreign Application Priority Dam A cigarette lighter which uses microencapsulated fuel, Dec. 24, 1969 France ..6944874 is Provided with a mechanism for advancing a predetermined amount of fuel capsules to a burner [52] U.S.Cl ..43l/267 zone of the lighter from a reservoir thereof and a [51] Int. Cl ..F23q 1/02 mechanism for crushing the fuel capsules in the of Search burner one to effect a release and permit a ub- References Cited sequent ignition of fuel.
  • Microencapsulation has become a widely known and used technique. It is concerned with enclosing widely different products, both solids and liquids, in protective envelopes or capsules.
  • the diameter of the capsules which are generally of substantially spherical configu ration, may range from a few microns to several millimeters.
  • the final product regardless of the nature of the encapsulated material, has the consistency of a dry powdery or granular matter.
  • the capsule may be used for various materials. At the present time, more than 50 natural or synthetic polymers may find application in this process which became to be known as microencapsulation.
  • the physical properties of the capsules may also vary between wide limits. They may be rigid or elastic, they may be fluid tight or pervious.
  • the release of the encapsulated material is effected by destroying the capsules.
  • Such destruction may be brought about in different ways, dependent upon the properties of the capsule material.
  • the capsules may be destroyed by crushing, or by heating, or by action of a solvent, or by enzymatic reduction.
  • lighter fuel may also be encapsulated in the afore-outlined manner.
  • a cigarette lighter in which microencapsulated fuel is stored and which includes means for transferring predetermined quantities of encapsulated fuel from storage means to a burning zone, means for breaking at least one part of the fuel capsules in the burning zone to cause release of fuel thereinto and means for igniting the thus released fuel in the burning zone.
  • microencapsulated fuel in cigarette lighters is particularly advantageous because of an increased safety in handling and further, in view of the fluid-tight fuel capsules, it is not necessary to provide a hermetically closing storage space for the fuel in the lighter body.
  • FIG. 1 is a top plan view of a strip containing spaced doses of encapsulated fuel
  • FIG. 2 is a sectional view along line II-II of FIG. 1;
  • FIG. 3 is a perspective schematic view of one em- CONSIDERATIONS PERTAINING TO THE COMPOSITION AND IGNITION OF THE ENCAPSULATED FUEL
  • the igniting means for. the fuel may be a conven-.
  • the fuel may be contacted with a suitable igniting catalyzer or with a material which forms a self-igniting mixture with the fuel or, a pyrophoric fluid material may be advanced into the burning zone and released simultaneously with the fuel.
  • a suitable igniting catalyzer or with a material which forms a self-igniting mixture with the fuel or, a pyrophoric fluid material may be advanced into the burning zone and released simultaneously with the fuel.
  • a simple way to bring together these two materials in the burning zone is to store the encapsulated fuel and the encapsulated activator in the lighter in a thoroughly mixed condition and then to break a determined quantity of the mixed capsules in the burning zone.
  • the solid particles are simply mixed with the microcapsules containing the fuel, and the mixture is stored in the lighter.
  • hydrides of boron hydrides of silicon or alkyl derivates of aluminum of boron or of alkaline metals may be used.
  • the most widely used igniting catalyzers are nickel, palladium and, above all platinum.
  • the latter may be carried by alumina particles or by carbonized silica.
  • catalyzers of this type it is advantageous to use a combustible material whose temperature of ignition is relatively close to normal temperatures, such as cyclopropane, ethylene oxide, acetylene, methyl alcohol, etc.
  • combustible material whose temperature of ignition is relatively close to normal temperatures, such as cyclopropane, ethylene oxide, acetylene, methyl alcohol, etc.
  • Such combustible material is added to the usual butane-propane fuel either before the microencapsulation (in case the physical characteristics permit an efficient mixing) or when the fuel is released from the microcapsules.
  • the mixture of ethylene oxide with an organic amine or the mixture of furfuryl alcohol with perhydrol may be mentioned. It is to be understood that such a mixture itself may be associated with a catalyzer. Thus, for example, a mixing of butane and perhydrol may take place in the presence of a platinum catalyzer.
  • the capsules may be incorporated in a neutral" paste which itself may burn or which may contain the particles that carry the igniting catalyzer.
  • fluid-tight microcapsules 1 containing lighter fuel are thoroughly mixed with fluid-tight microcapsules 2 containing pyrophoric fluid.
  • This mixture is divided into equal doses 3 uniformly spaced and sandwiched between two superimposed strips 4 and 5 bonded to one another. It is seen that this assembly is analogous in structure to a coiled cap strip used in toy guns. Accordingly, the
  • lighter in which a fuel strip of FIGS. 1 and 2 may find application, comprises a mechanism for advancing the strip and an associated hammer device for hitting that particular fuel dose 3 which has been advanced into the burning zone.
  • the hammer of the mechanism upon manipulation of an actuator, crushes at least part of the capsules of one does 3 which was previously suitably positioned within the travelling path of the hammer by a forwarding mechanism during the arming of the hammer.
  • the crushing of the microcapsules causes a release of the pyrophoric matter and of the fuel and as a result, the former ignites the latter.
  • the destruction of the capsules is only partial limited, for example, to an area designated with a circle 6 in FIG. 1 the generated flame causes the destruction of the remainder of the microcapsules and thus the entire quantity of fuel in that dose will be ignited.
  • Each dose 3 contains a quantity of fuel which generates a flame of a predetermined uniform duration.
  • FIGS. 3, 4 and 5 the embodiment sown therein uses encapsulated fuel which is incorporated in a paste that is stored in a lighter reservoir (not shown).
  • the latter is associated with a dispensing mechanism for ejecting a predetermined quantity 8 of the paste through the tube 7.
  • a horizontal platform or turntable 9 which may be rotated in the direction of arrow F1 about a central axis 10.
  • a scraper l2 Between the burner 11 and the discharge zone of the tube 7 there is located a scraper l2 affecting those surface portions of the turntable 9 which move from the burner 11 towards tube 7.
  • the hollow burner 11 is formed of an upper head portion 11a and a lower extension 11b.
  • the terminal face of the head 11a is provided with a burner opening 13, while the side of extension llb has several orifices 14.
  • the extension 1 lb is surrounded by an elastic apron 15 which extends downwardly from the lower part of the head portion 11a.
  • the burner 11 is mounted and supported in such a manner that it is movable normal to the surface of the turntable 9 between a lower, or operative position and an upper, or inoperative position (position of rest).
  • the lower base face 16 of the extension 1 lb In its lower position, the lower base face 16 of the extension 1 lb is in an immediate vicinity of the surface of the turntable and the lower edge of the apron 15 is in positive, closedline contact therewith.
  • the base 16 of the lower extension 11b is at a substantial distance from the turntable face and the lower edge of the apron I is also spaced therefrom.
  • the lower edge of apron is slightly below the level of base 16.
  • FIGS. 3, 4 and 5 The operation of the lighter mechanism shown in FIGS. 3, 4 and 5 is as follows: Upon release of a manual actuator at the end of a preceding igniting cycle, a dose 8 of the paste deposited through the tube 7 on the surface of the turntable 9 is moved with the latter into alignment with the burner 11 which, by this time, is in its position of rest (upper position).
  • FIG. 4 shows the position of the dose 8 in solidlines immediately prior to the termination of a rotation of the turntable 9. The dose 8 then passes under the lower terminal edge of the apron l5, and comes to rest at position 8'.
  • a new dose 8 is deposited by the tube 7 on the turntable 9 and the burner 11 is lowered in the direction of arrow F2 (FIG. 4).
  • the lower edge portion of the apron 15 contacts the upper face of the turntable 9 and thereafter, upon further downward movement of the burner 11, the apron l5 elastically deforms by bulging (FIG. 5).
  • the lower face or base 16 of the burner 11 crushes the paste dose 8 causing destruction of the capsules.
  • the encapsulated products are thus released within the confines delimited by the lowered apron 15 and may escape only through the orifices 14 and 13, whereupon a flame 17 is generated, for example, with the aid of a simultaneously operated conventional igniting mechanism, if the fuel is not of the self-igniting type.
  • the burner 11 When the actuator is released, the burner 11 returns to its position of rest (FIG. 4), the turntable rotates 180 and its area in which the paste was crushed during the preceding operation, returns under the tube outlet 7. As the aforenoted area of the turntable 9 passes under the scraper 12, the latter pushes outwardly all debris, which may remain on the turntable 9 subsequent to the aforedescribed crushing operation.
  • a cigarette lighter comprising A. storing means for receiving fuel enclosed in microcapsules,
  • a cigarette lighter as defined in claim 2 including means for simultaneously actuating said hammer means and said means for igniting the fuel.
  • a cigarette lighter as defined in claim 4 including dispensing means to remove a predetermined quantity of said paste from said storing means.
  • said burner means includes A. a hollow burner body disposed adjacent said conveying surface and remote from said dispensing means, said hollow burner body movable towards said conveying surface to assume an operative position and movable away from said conveying surface to assume an inoperative position, said hollow burner body has i. a burner opening at its end remote from said conveying surface and 2. a base at its end adjacent said conveying surface, said base constitutes said hammer means breaking at least part of the microcapsules aligned with said burner body when the latter is in said operative position and B.
  • a flexible apron affixed to said hollow burner body, said apron has a free terminal edge spaced from said conveying surface when said hollow burner body is in said inoperative position, said terminal edge is in a closed line contact with said conveying surface around said predetermined quantity of paste in said burner means when said hollow burner body is in said operative position.
  • a cigarette lighter as defined in claim 1 wherein the microencapsulated fuel is carried by a strip in predetermined and uniformly spaced doses; said advancing means, upon actuation, is adapted to engage said strip and forward it toward said burner means to an extent so as to position a fuel dose in said burner means.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lighters Containing Fuel (AREA)
US00101288A 1969-12-24 1970-12-24 Cigarette lighter using microencapsulated fuel Expired - Lifetime US3723051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6944874A FR2071345A5 (enrdf_load_stackoverflow) 1969-12-24 1969-12-24

Publications (1)

Publication Number Publication Date
US3723051A true US3723051A (en) 1973-03-27

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ID=9045178

Family Applications (1)

Application Number Title Priority Date Filing Date
US00101288A Expired - Lifetime US3723051A (en) 1969-12-24 1970-12-24 Cigarette lighter using microencapsulated fuel

Country Status (8)

Country Link
US (1) US3723051A (enrdf_load_stackoverflow)
JP (1) JPS4837432B1 (enrdf_load_stackoverflow)
AT (1) AT299593B (enrdf_load_stackoverflow)
BE (1) BE760722A (enrdf_load_stackoverflow)
CH (1) CH534846A (enrdf_load_stackoverflow)
DE (1) DE2063616A1 (enrdf_load_stackoverflow)
FR (1) FR2071345A5 (enrdf_load_stackoverflow)
NL (1) NL7018781A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583940A (en) * 1982-10-28 1986-04-22 Conrad Zellweger Igniter for combustible material
US20190360699A1 (en) * 2018-05-24 2019-11-28 Parker Eugene Holterman Fire Starting Apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2287525A (en) * 1941-07-28 1942-06-23 Arthur W Juster Fireball lighter
US2513656A (en) * 1948-01-29 1950-07-04 Joseph F Lettl Lighter with combustible pellets
US2909914A (en) * 1956-11-21 1959-10-27 Ellinn D Vissing Cigarette lighters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2287525A (en) * 1941-07-28 1942-06-23 Arthur W Juster Fireball lighter
US2513656A (en) * 1948-01-29 1950-07-04 Joseph F Lettl Lighter with combustible pellets
US2909914A (en) * 1956-11-21 1959-10-27 Ellinn D Vissing Cigarette lighters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583940A (en) * 1982-10-28 1986-04-22 Conrad Zellweger Igniter for combustible material
US20190360699A1 (en) * 2018-05-24 2019-11-28 Parker Eugene Holterman Fire Starting Apparatus

Also Published As

Publication number Publication date
JPS4837432B1 (enrdf_load_stackoverflow) 1973-11-10
FR2071345A5 (enrdf_load_stackoverflow) 1971-09-17
DE2063616A1 (de) 1971-07-01
AT299593B (de) 1972-06-26
NL7018781A (enrdf_load_stackoverflow) 1971-06-28
BE760722A (fr) 1971-05-27
CH534846A (fr) 1973-03-15

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