US3734349A - Cigarette gas lighter - Google Patents

Cigarette gas lighter Download PDF

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Publication number
US3734349A
US3734349A US00114572A US3734349DA US3734349A US 3734349 A US3734349 A US 3734349A US 00114572 A US00114572 A US 00114572A US 3734349D A US3734349D A US 3734349DA US 3734349 A US3734349 A US 3734349A
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US
United States
Prior art keywords
valve body
neck
well
gas
tapped
Prior art date
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
Application number
US00114572A
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English (en)
Inventor
J Tricot
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Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3734349A publication Critical patent/US3734349A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
    • F23Q2/162—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase with non-adjustable gas flame
    • F23Q2/163—Burners (gas valves)

Definitions

  • Cigarette gas lighter body with a tapped well for en- [51] Int. Cl ..F23d 3/00 e s with a Screw-threaded valve y-
  • the 58] Field of Search ..222/3, 520, 545; lighter y has, above and around the pp well, a 431/344 neck formed by an outer extension with a cylindrical bore and, at the base thereof, an inner groove imparting radial elasticity to the neck.
  • the present invention relates to improvements in the bodies of cigarette gas lighters of the type wherein the plastic body constituting the reservoir for the liquefied gas fuel comprises a tapped well adapted to receive a screw-threaded valve body or unit incorporating the valve member controlling the opening and closing of the valve seat for delivering the gaseous fuel by pressure-release action.
  • these means consist of O-rings disposed in a groove provided to this end in the valve body and registering with the upper portion of said well.
  • the improvements according to the present invention are intended to provide sealing means which, without unduly incrementing the cigarette-lighter assembling time, preserves its efficiency irrespective of the temperatures likely to be encountered under normal or prolonged service conditions.
  • the well formed in the lighter body or reservoir for receiving the valve body comprises a neck-forming cylindrical outer extension of plastic material injection-moulded integrally with the lighter body or reservoir, said outer extension comprising at its base an inner groove imparting a certain radial elasticity thereto and, on the remaining upper portion of the neck, a smooth cylindrical bore of a diameter slightly smaller than the groove diameter and also than the outer diameter of the valve body, so that this inner wall resiliently engages said valve body and provides by itself the necessary gas tightness.
  • this cylindrical resilient neck is considerable because on the one hand when the valve body is introduced into the well said neck is caused to expand or flare out, therefore without forming splines or other distortions facilitating the escape of gas, and on the other hand it permits immediately, upon completion of the assembling operation and due to its radial resiliency, of removing the spindle or like tool necessary for forming the inner groove recessed from the bore wall.
  • FIG. 1 is a fragmentary longitudinal section showing a first form of embodiment of a cigarette-lighter reservoir according to the present invention
  • FIG. 2 is a longitudinal detail section showing the well of FIG. 1 before the insertion of the valve body into it, and
  • FIG. 3 is a view similar to FIG. 2 but showing a modified form of embodiment.
  • the reference numeral 2 designates a reservoir adapted to be filled with liquefied gas 3 as conventional in gas lighters, the upper portion of this reservoir 2 comprising a well 4 formed with a tapped portion 4a adapted to receive a correspondingly screwthreaded valve body 5.
  • This valve body 5 made of suitable metal incorporates the valve member of which the projecting upper portion constitutes the burner 6.
  • the well 4 has an outer extension in the form of a cylindrical neck or skirt 7 also formed of plastic material, notably by injectionmoulding.
  • This neck 7 comprises an inner groove 8 formed substantially at the base thereof and adapted to impart a certain resiliency to this neck.
  • the neck 7 further comprises on its inner portion extending from this groove to its outer edge a bore 9 having a bevelled upper edge 10.
  • the diameter of bore 9 is slightly inferior to the outer diameter of the valve body 5.
  • the valve body 5 when the valve body 5 is fitted by screwing into the well 4 it tends to produce a radial expansion of the neck 7 in the direction of the arrows ll of FIG. 2.
  • the neck 7 is caused to flare out in order to facilitate the introduction of the valve body while exerting by inherent resiliency a radial clamping effort in a direction opposed to that shown by the arrows 11.
  • neck 7 is sufficient for providing a fluid-tight engagement between the wall of its bore 9 and the outer wall of valve body 5, and thus prevent any gas leakage between the valve body and the well.
  • the neck 7 projects somewhat from the reservoir body 2, but it will readily appear to those skilled in the art that it can also be so formed that its upper face 12 be substantially coplanar with the corresponding face 13 of said reservoir, as illustrated in FIG. 3.
  • the neck 7 is surrounded by a concentric groove 14 formed in the upper portion of the reservoir in order to preserve the inherent radial resiliency of said neck 7.
  • this neck may also be formed integrally with the gas reservoir proper or with the cigarettelighter body in case this body consisted of the reservoir itself.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighters Containing Fuel (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US00114572A 1970-02-12 1971-02-11 Cigarette gas lighter Expired - Lifetime US3734349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7005085A FR2079794A5 (de) 1970-02-12 1970-02-12

Publications (1)

Publication Number Publication Date
US3734349A true US3734349A (en) 1973-05-22

Family

ID=9050560

Family Applications (1)

Application Number Title Priority Date Filing Date
US00114572A Expired - Lifetime US3734349A (en) 1970-02-12 1971-02-11 Cigarette gas lighter

Country Status (11)

Country Link
US (1) US3734349A (de)
AT (1) AT296665B (de)
BE (1) BE761699A (de)
CA (1) CA926642A (de)
CH (1) CH526074A (de)
DK (1) DK133353B (de)
ES (1) ES194551Y (de)
FR (1) FR2079794A5 (de)
GB (1) GB1318816A (de)
NO (1) NO131621C (de)
SE (1) SE381093B (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014357A (en) * 1958-07-11 1961-12-26 Nationale Sa Burners for liquefied gas lighters
US3118295A (en) * 1964-01-21 Stop valve and burner for liquefied gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118295A (en) * 1964-01-21 Stop valve and burner for liquefied gas
US3014357A (en) * 1958-07-11 1961-12-26 Nationale Sa Burners for liquefied gas lighters

Also Published As

Publication number Publication date
BE761699A (fr) 1971-07-01
SE381093B (sv) 1975-11-24
FR2079794A5 (de) 1971-11-12
DK133353B (da) 1976-05-03
ES194551Y (es) 1975-04-16
CH526074A (fr) 1972-07-31
DK133353C (de) 1976-09-27
NO131621B (de) 1975-03-17
ES194551U (es) 1974-12-16
NO131621C (de) 1975-06-25
AT296665B (de) 1972-02-25
CA926642A (en) 1973-05-22
GB1318816A (en) 1973-05-31

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