Disposable lighter

Information

  • Patent Grant
  • 6655953
  • Patent Number
    6,655,953
  • Date Filed
    Monday, December 9, 2002
    22 years ago
  • Date Issued
    Tuesday, December 2, 2003
    21 years ago
Abstract
A disposable lighter includes a gas casing receiving a fuel storage, a gas emitting nozzle communicating with the fuel storage for controlling a flow of gas, an outer shelter slidably mounted on a sidewall of the gas casing, a piezoelectric unit supported between the gas casing and the outer shelter, and an actuating arm extended from an inner side of the outer shelter to a top end of the piezoelectric unit in such a manner that when the outer shelter is axially slid with respect to the gas casing, the actuating arm is driven to compress the piezoelectric unit so as to ignite the disposable lighter.
Description




BACKGROUND OF THE PRESENT INVENTION




1. Field of Invention




The present invention relates to a lighter, and more particularly to a disposable lighter, which comprises a gas casing and an outer shelter slidably mounted on a side of the gas casing wherein the outer shelter functions as an ignition actuator and arranged in such a manner that the outer shelter is slid in an axially movable manner with respect to the gas casing to ignite the disposable lighter.




2. Description of Related Arts




A conventional piezoelectric lighter generally comprises a lighter case receiving a fuel storage chamber and having an ignition cavity, an ignition system comprises a gas emitting nozzle communicated with the fuel storage chamber, a piezoelectric unit disposed in the ignition cavity and arranged for producing a spark toward the gas emitting nozzle, and an ignition button slidably mounted on top of the lighter case and communicated with the gas emitting nozzle via a gas lever.




Hence, when the ignition button is depressed downwardly, the gas lever is arranged to lift up the gas emitting nozzle for releasing gas fuel and, at the same time, a movable operating part of the piezoelectric unit is depressed downwardly to produce the spark at the ignition tip of the gas emitting nozzle such that the gas fuel ejecting from the gas emitting nozzle is then ignited by the spark.




According to the construction of the conventional piezoelectric lighter, the ignition button is provided on a top side of the lighter case adjacent to the ignition tip of the gas emitting nozzle such that a user must use his or her thumb to depress the ignition button downwardly to ignite the piezoelectric lighter. One of the reasons for such structure is that the user is able to conveniently ignite the piezoelectric lighter.




However, such convenient structure also creates some repercussions. The conventional piezoelectric lighter may cause undesirable ignitions, especially by children.




As a matter of facts, the appearances and the operation procedures of most conventional piezoelectric lighters are similar. Driven by curiosity, a child may easily recognize that there is a lighter in a certain place and he or she can easily reach and ignite it for fun. Although safety locks are incorporated with such piezoelectric lighters to lock up the downward movement of the ignition button, most of the safety locks are simple enough that the children can easily figure out the way to unlock the ignition button.




Moreover, since the ignition button is positioned adjacent to the ignition tip of the gas emitting nozzle, the flame produced at the ignition tip of the gas emitting nozzle may bum the user's thumb, especially when the flame is adjusted to have a larger flame size. For example, when the user ignites the piezoelectric lighter to light up a cigar that takes a relative longer time, the flame will heat up the surrounding area of the ignition tip of the gas emitting nozzle. Therefore, the flame may burn a portion of the ignition button closed to the ignition tip or even hurt the user's thumb.




In addition, the size of the lighter case must be large enough to store the gas therein and receive the piezoelectric unit. In order to provide a compact size of the piezoelectric lighter, the size of the fuel storage chamber in the lighter case must be minimized to create the ignition cavity for the piezoelectric unit disposed therein. Therefore, most of the piezoelectric lighter must be disposed when the gas fuel is used up rather than the piezoelectric unit is terminated.




Besides, since the ignition button is conventionally constructed on the top side of the lighter case, the ignition button will limit the appearance of the piezoelectric lighter. Such press down type of the piezoelectric lighter also prevents the industry designer to create any ornament design without the ignition button equipped thereon.




SUMMARY OF THE PRESENT INVENTION




A main object of the present invention is to provide a disposable lighter which comprises a gas casing and an outer shelter slidably mounted on a side of the gas casing wherein the outer shelter functions as an ignition actuator and arranged in such a manner that the outer shelter is slid in an axially movable manner with respect to the gas casing to ignite the disposable lighter.




Another object of the present invention is to provide a disposable lighter, wherein no ignition button is mounted on the gas casing so that the children may not find out how to operate the disposable lighter so as to prevent the disposable lighter from being ignited by the children.




Another object of the present invention is to provide a disposable lighter, wherein the piezoelectric unit is mounted between the gas casing and the outer shelter such that the size of the gas chamber in the gas casing can be maximized to prolong the service life of the present invention.




Another object of the present invention is to provide a disposable lighter, wherein an adult must use his or her fingers to apply the axial sliding force on the outer shelter, such that the adult's fingers are positioned below the ignition tip of the gas emitting nozzle so as to prevent the adult's fingers getting burnt by the flame. In other words, the adult's fingers are positioned far away from the flame for safety purpose.




Another object of the present invention is to provide a disposable lighter, wherein the disposable lighter can be designed and crafted to a variety of shapes and models without affecting the ignition operation of the disposable lighter, so as to enhance the aesthetic appearance of the disposable lighter of the present invention.




Another object of the present invention is to provide a disposable lighter, wherein the ignition operation of the disposable lighter merely requires a simple single-action operation by the adult instead of the conventional double-action operation.




Another object of the present invention is to provide a disposable lighter, which comprises a compression resistance element provided between the outer shelter and the gas casing for providing an additional sliding resistance force against the outer shelter such that the compression resistance element forms as a physical barrier for preventing the disposable lighter of the prevent invention from being ignited accidentally or by children.




Another object of the present invention is to provide a disposable lighter, wherein no expensive or complicated mechanism is required to employ in the disposable lighter, so as to minimize the manufacturing and marketing cost of the disposable lighter of the present invention.




Accordingly, in order to accomplish the above objects, the present invention provides a disposable lighter, comprising:




a gas casing receiving a fuel storage;




a gas emitting nozzle having an ignition tip appearing at a ceiling of the gas casing and communicating with the fuel storage for controlling a flow of gas;




a piezoelectric unit comprising a main piezoelectric body, a movable operating part slidably extended therefrom, and a spark generating tip extended to a position close to the ignition tip of the gas emitting nozzle, wherein when the movable operating part is depressed with respect to the main piezoelectric body, the spark generating tip generates sparks to ignite the gas emitted from the ignition tip of the gas emitting nozzle;




an outer shelter slidably mounted on a sidewall of the gas casing and defining a receiving cavity between the outer shelter and the gas casing wherein the piezoelectric unit is received in the receiving cavity; and




an actuating arm extended from an inner side of the outer shelter to a top end of the piezoelectric unit in such a manner that when the outer shelter is axially slid with respect to the gas casing, the actuating arm is driven to compress the piezoelectric unit so as to ignite the disposable lighter.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an exploded perspective view of a disposable lighter according to a first preferred embodiment of the present invention.





FIG. 2A

is a sectional view of the disposable lighter according to the above first preferred embodiment of the present invention.





FIG. 2B

is a sectional view of the disposable lighter according to the above first preferred embodiment of the present invention, illustrating the disposable lighter being ignited.





FIG. 3

is a partially enlarged perspective view of the disposable lighter according to the above first preferred embodiment of the present invention.





FIG. 4

illustrates an alternative mode of a gas casing of the disposable lighter according to the above first preferred embodiment of the present invention.





FIG. 5

is an exploded perspective view of a disposable lighter according to a second preferred embodiment of the present invention.





FIG. 6

is a sectional view of the disposable lighter according to the above second preferred embodiment of the present invention.





FIG. 7

is an exploded perspective view of a disposable lighter according to a third preferred embodiment of the present invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to

FIG. 1

of the drawings, a disposable lighter according to a first preferred embodiment of the present invention is illustrated, wherein the disposable lighter comprises a gas casing


10


receiving a fuel storage


11


, a gas emitting nozzle


20


having an ignition tip


21


appearing at a ceiling of the gas casing


10


and communicating with the fuel storage


11


for controlling a flow of gas.




The disposable lighter further comprises a piezoelectric unit


30


, an outer shelter


40


and an actuating arm


50


.




The piezoelectric unit


30


comprises a main piezoelectric body


31


, a movable operating part


32


slidably extended therefrom, and a spark generating tip


33


extended to a position close to the ignition tip


21


of the gas emitting nozzle


20


, wherein when the movable operating part


32


is depressed with respect to the main piezoelectric body


31


, the spark generating tip


33


generates sparks to ignite the gas emitted from the ignition tip


21


of the gas emitting nozzle


20


.




The outer shelter


40


is slidably mounted on a sidewall of the gas casing


10


in an axially movable manner and defines a receiving cavity


41


between the outer shelter


40


and the gas casing


10


wherein the piezoelectric unit


30


is received in the receiving cavity


41


.




The actuating arm


50


is extended from an inner side of the outer shelter


40


to a top end of the piezoelectric unit


30


in such a manner that when the outer shelter


40


is axially slid with respect to the gas casing


10


, the actuating arm


50


is driven to compress the piezoelectric unit


30


so as to ignite the disposable lighter.




As shown in

FIG. 2A

, the gas emitting nozzle


20


is communicated with the fuel storage


11


via a gas releasable valve


22


for controlling the flow of gas, wherein the gas releasable valve


22


is adapted to be lifted up via a gas lever


23


for releasing the gas in the fuel storage cavity


11


through the ignition tip


21


of the gas emitting nozzle


20


.




The gas lever


23


has an engaging end


231


engaging with the gas releasable valve


22


and an actuating end


232


arranged in such a manner that when the actuating end


232


of the gas lever


23


is depressed downwardly, the engaging end


231


of the gas lever


23


pivotally lifts up the gas releasable valve


22


to release the gas from the fuel storage


11


.




As shown in

FIG. 1

, the gas emitting nozzle


20


is sealedly mounted on the gas casing


10


to form a one-piece integral body. Since the piezoelectric unit


30


is positioned outside of the gas casing


10


instead of the conventional lighter that the piezoelectric unit is disposed inside the gas casing, the size of the fuel storage


11


can be maximized to store the gas fuel therein.




The gas casing


10


further has a receiving chamber


12


formed on the sidewall of the gas casing


10


and a guiding slot


13


which is indented on the sidewall of the gas casing and extended from the receiving chamber


12


to the ceiling of the gas casing


10


wherein the piezoelectric unit


30


is disposed in the receiving chamber


12


and the spark generating tip


33


is guided towards extend to the ignition tip


21


of the gas emitting nozzle


20


through the guiding slot


13


.




According to the first embodiment, the outer shelter


40


is shaped and sized as a sidewall shelter to fully cover the sidewall of the gas casing


10


in a slidably movable manner so as to enclose the receiving chamber


12


of the gas casing


10


and retain the piezoelectric unit


30


in position, wherein the outer shelter


40


is adapted to be axially and downwardly slid on the sidewall of the gas casing


10


.




The actuating arm


50


is supported in the receiving cavity


41


wherein the actuating arm


50


is extended from the inner side of the outer shelter


40


to the top end of the main piezoelectric body


31


of the piezoelectric unit


30


in such a manner that when the outer shelter


40


is downwardly slid on the gas casing


10


, the actuating arm


50


is driven downwardly to compress the piezoelectric unit


30


so as to ignite the disposable lighter, as shown in FIG.


2


B.




The disposable lighter of the present invention further comprises a depressible arm


51


extended from the inner side of the outer shelter


40


to engage with the actuating end


232


of the gas lever


23


in such a manner that when the outer shelter


40


is downwardly slid on the gas casing


10


to compress the piezoelectric unit, the depressible arm


51


is driven to depress the actuating end


232


of the gas lever


23


, so as to lift up the gas releasable valve


22


for releasing the gas from the fuel storage


11


.




As shown in

FIGS. 2A and 2B

, the disposable lighter further, comprises an ignition guiding arrangement


60


which comprises a first guider


61


provided on an outer side of the outer shelter


40


and a second guider


62


provide on an upper portion of an opposed sidewall of the gas casing


10


wherein the first and second guiders


61


,


62


provide finger grips for frictionally contacting the user's thumb and fingers on the gas casing


10


and the outer shelter


40


respectively.




Accordingly, the first guider


61


comprises a plurality of gripping ribs


611


integrally protruded from the outer side of the outer shelter


40


and the second guider


62


comprises a plurality of projections


621


protruded from the opposed sidewall of the gas casing


10


in such a manner that the user is able to securely hold the disposable lighter and slide the outer shelter


40


on the gas casing


10


by pressing the user's thumb on the projections


621


of the second guider


62


and the user's fingers on the gripping ribs


611


of the first guider


61


. In other words, the ignition guiding arrangement


60


enhance the friction between the disposable lighter and the user's hand so that the user can easily slide down the outer shelter


40


with respect to the gas casing


10


.




Alternatively, the first guider


61


A comprises a plurality of guiding grooves


611


A indented on the outer side of the outer shelter


40


and the second guider


62


A is embodied as a guiding edge


621


A integrally protruded from the opposed sidewall of the gas casing


10


A such that the user's thumb is adapted to press at the guiding edge


621


A of the second guider


62


A and the user's fingers are pressed on the guiding grooves


611


A of the first guider


61


A on the outer shelter


40


so as to frictionally slide the outer shelter


40


on the gas casing


10


A by the user's hand, as shown in FIG.


4


.




It is worth mentioning that the user must use his or her thumb and fingers to ignite the disposable lighter. Therefore, only the adult user is able to ignite the disposable lighter since he or she has a bigger hand that the user's thumb presses on the gas casing


10


and the user's fingers press on the outer shelter


40


. However, a young child has a smaller hand size that is unable to hold the disposable lighter to slide the outer shelter


40


on the gas casing


10


for ignition. In other words, the outer shelter


40


functions as a physical barrier to prevent the disposable lighter from being ignited.




For safety purpose, the disposable lighter further comprises a pressure absorbing arrangement


70


which comprises a compression resistance element


71


supported in the receiving cavity


41


for providing a sliding resistance against the outer shelter


40


and a pusher arm


72


extended from the inner side of the outer shelter


40


to a top end of the compression resistance element


71


wherein the sliding resistance is an additional upward force added to the outer shelter


40


in addition to that provided by the piezoelectric unit


30


, as shown in FIG.


3


. In other words, the compression resistance element


71


must be compressed by the pusher arm


72


when the outer shelter


40


is slid on the gas casing


10


to ignite the disposable lighter. Therefore, the pressure absorbing arrangement


70


can stop the young children from the usage of the disposable lighter by limitation of their physical capability.




Accordingly, the compression resistance element


71


is a cylindrical rubber post vertically held in the receiving chamber


12


of the gas casing


10


. The pressure absorbing arrangement


70


further comprises means


73


for securely holding the compression resistance element


71


in the receiving cavity


41


wherein the holding means


73


has an indention


731


provided on a bottom wall of the receiving chamber


12


in such a manner that a bottom end of the compression resistance element


71


is securely received in the indention


731


so as to vertically support the compression resistance element


71


in the receiving cavity


41


, as shown in FIG.


3


.




Moreover, the disposable lighter further comprises a safety locking arrangement


80


for locking a sliding movement of the outer shelter


40


on the gas casing


10


, wherein the safety locking arrangement


80


has a locking groove


81


transversely formed on the inner side of the outer shelter


40


and comprises a locking member


81


having a control end rotatably mounted to the gas casing


10


and a locking end adapted to move into the locking groove


81


so as to lock up the outer shelter


40


on the gas casing


10


. In other words, when the control end of the locking member


81


is rotated to drive the locking end of the locking member


81


into the locking groove


81


, the outer shelter


40


is locked up with respect to the gas casing


10


, so as to prevent the disposable lighter from being ignited accidentally and unintentionally.




Alternatively, the safety locking arrangement


80


A has a locking groove


81


A transversely provided on the sidewall of the gas casing


10


A and a locking hole


81


A provided on the outer shelter


40


A and aligned with the locking groove


81


A, wherein the safety locking arrangement


80


A further comprises a locking member


83


A slidably received in the locking groove


81


A, a resilient element


84


A disposed in the locking groove


81


A for applying an urging force against the locking member


83


A to push the locking member


83


A towards the locking hole


82


A to lock up the outer shelter


40


A on the gas casing


10


A, and a pusher button


85


A slidably mounted on the outer shelter


40


A through the locking hole


82


A and arranged in such a manner that when the pusher button


85


A pushes the locking member


84


A into the locking groove


81


A, the locking member


84


A is moved out of the locking hole


82


A to release a blocking up of the outer shelter


40


A with respect to the gas casing


10


A, so that the outer shelter


40


A is capable of axially sliding on the gas casing


10


A, as shown in FIG.


4


.




In order to ignite the disposable lighter, the user is preferred to use his or her thumb to press on the gas casing


10


at the second guider


62


and his or her fingers to press on the outer shelter


61


at the first guider


61


such that by applying a downward sliding force on the outer shelter


40


, the outer shelter


40


is axially slid on the gas casing


10


to compress the piezoelectric unit


30


by the actuating arm


50


so as to ignite the disposable lighter.




By releasing the downward sliding force on the outer shelter


40


, the compressed piezoelectric unit


30


is rebounded to its original form so as to push the outer shelter


40


upwardly via the actuating arm


50


back to the original position. Since the ignition operation of the disposable lighter requires the user to hold the outer shelter


40


and the gas casing


10


, the flame at the ignition tip


21


of the gas emitting nozzle


20


is positioned above the user's hand. Therefore, the user's hand will not be burnt by the flame even the disposable lighter is remained in its ignition position for a period of time.




As shown in

FIGS. 5 and 6

, a disposable lighter of a second embodiment illustrates an alternative mode of the first embodiment of the present invention, wherein the gas casing


10


′ has a receiving chamber


12


′ provided on a lower portion of the sidewall of the gas casing


10


′ and a through slot


14


′ extended from the receiving chamber


12


′ to a ceiling of the gas casing


10


′.




According to the second embodiment, the piezoelectric unit


30


′ is disposed in the receiving chamber


12


′ within the receiving cavity


41


′ wherein the spark generating tip


33


′ is extended from the piezoelectric unit


30


′ to a position close to the ignition tip


21


′ of the gas emitting nozzle


20


′ through the through slot


14


′.




The outer shelter


40


′ is constructed as a tubular sleeve having a shape and size encirclingly mounted on a lower portion of the sidewall of the gas casing


10


′ in an axially and slidably movable manner, so as to enclose the receiving chamber


12


′ of the gas casing


10


′. The actuating arm


50


′ is extended from the inner side of the outer shelter


40


′ to the top end of the piezoelectric unit


30


′ in such a manner that when the outer shelter


40


′ is downwardly and axially slid on the gas casing


10


′, the actuating arm


50


′ is driven to compress the piezoelectric unit


30


′ so as to ignite the disposable lighter.




The gas emitting nozzle


20


′ further comprises a driven arm


24


′ having a pulling end engaged with the actuating end


232


′ of the gas lever


23


′ and a driven end extended through the through slot


14


′ to engage with the actuating arm


50


′ in such a manner that when the outer shelter


40


′ is axially slid on the gas casing


10


′, the actuating arm


50


′ is driven downwardly to lift up the engaging end


231


′ of the gas lever


23


′ for releasing the gas from the fuel storage


11


′.




Moreover, ignition guiding arrangement


60


′, the pressure absorbing arrangement


70


′, and the safety locking arrangement


80


′ according to the first embodiment is adapted to incorporate in the disposable lighter of the second embodiment to provide the safety feature of the present invention, as shown in FIG.


5


.




As shown in

FIG. 7

, a disposable lighter of a third embodiment illustrates an alternative mode of the first and second embodiments, wherein the disposable lighter of the third embodiment basically is a combination of the first and second embodiments.




The gas casing


10


″ has a receiving chamber


12


″ provided on a lower portion of the sidewall of the gas casing


10


″ and a through slot


14


″ extended from the receiving chamber


12


″ to a ceiling of the gas casing


10


″.




The piezoelectric unit


30


″ is disposed in the receiving chamber


12


″ within the receiving cavity


41


″ wherein the spark generating tip


33


″ is extended from the piezoelectric unit


30


″ through the through slot


14


″ to a position close to the ignition tip


21


″ of the gas emitting nozzle


20


″.




The outer shelter


40


″ is shaped and sized to partially cover the sidewall of the gas casing


10


″ in a slidably movable manner so as to enclose the receiving chamber


12


″, wherein the outer shelter


40


″ is adapted to be axially and downwardly slid on the sidewall of the gas casing


10


″. The actuating arm


50


″ is extended from the inner side of the outer shelter


40


″ to a top end of the piezoelectric unit


30


″ in such a manner that when the outer shelter


40


″ is axially slid on the gas casing


10


″, the actuating arm


50


″ is driven downwardly to compress the piezoelectric unit


30


″ so as to ignite the disposable lighter.




The gas emitting nozzle


20


″ further comprises a driven arm


24


″ having a pulling end engaged with the actuating end


232


″ of the gas lever


23


″ and a driven end extended through the through slot


14


″ to engage with the actuating arm


50


″ in such a manner that when the outer shelter


40


″ is axially slid on the gas casing


10


″, the actuating arm


50


″ is driven downwardly to lift up the engaging end


231


″ of the gas lever


23


″ for releasing the gas from the fuel storage


11


″.




Without violating the very spirit of present invention, some variations based on the above mentioned embodiments should be considered as equivalence. For example, the disposable lighter can be shaped into any aesthetic appearance wherein the ignition operation thereof requires the outer shelter


40


axially slid on the gas casing


10


to compress the piezoelectric unit


30


and move the gas lever


23


for releasing gas. Moreover, the disposable lighter of the present invention can stop the young children from the usage of the disposable lighter by the limitation of their physical capability and prevent the disposable lighter from being ignited accidentally and unintentionally.



Claims
  • 1. A disposable lighter, comprising:a gas casing receiving a fuel storage, wherein said gas casing has a receiving chamber provided on a lower portion of a sidewall of said gas casing and a through slot extended from said receiving chamber to a ceiling of said gas casing; a gas emitting nozzle having an ignition tip appearing at said ceiling of said gas casing and communicating with said fuel storage for controlling a flow of gas, wherein said gas emitting nozzle further comprises a gas releasable valve and a gas lever having an engaging end engaged with said gas releasable valve and an actuating end arranged in such a manner that when said actuating end of said gas lever is depressed downwardly, said engaging end of said gas lever pivotally lifts up said gas releasable valve to release said gas from said fuel storage through said ignition tip; a piezoelectric unit comprising a main piezoelectric body, a movable operating part slidably extended therefrom, and a spark generating tip extended to a position close to said ignition tip of said gas emitting nozzle, wherein when said movable operating part is depressed with respect to said main piezoelectric body, said spark generating tip generates sparks to ignite said gas emitted from said ignition tip of said gas emitting nozzle, wherein said piezoelectric unit is received in said receiving chamber and said spark generating tip is extended through said through slot towards said ignition tip of said gas emitting nozzle; an outer shelter slidably mounted on said sidewall of said gas casing and defining a receiving cavity between said outer shelter and said gas casing wherein said piezoelectric unit is received in said receiving cavity, wherein said outer shelter is constructed as a tubular sleeve having a shape and size encirclingly mounted on a lower portion of said sidewall of said gas casing in an axially and slidably movable manner, so as to enclose said receiving chamber of said gas casing; and an actuating arm extended from an inner side of said outer shelter to a top end of said piezoelectric unit in such a manner that when said outer shelter is axially slid with respect to said gas casing, said actuating arm is driven to compress said piezoelectric unit so as to ignite said disposable lighter.
  • 2. A disposable lighter, as recited in claim 1, wherein said gas emitting nozzle further comprises a driven arm having a pulling end engaged with said actuating end of said gas lever and driven end extended through said through slot to engage with said actuating arm in such a manner that when said outer shelter is axially slid on said gas casing, said actuating arm is driven downwardly to lift up said engaging end of said gas lever through said driven arm for releasing said gas from said fuel storage.
  • 3. A disposable lighter, as recited in claim 2, further comprises a pressure absorbing arrangement which comprises a compression resistance element supported in said receiving cavity for providing a sliding resistance against said outer shelter and a pusher arm extended from said inner side of said outer shelter to a top end of said compression resistance element, wherein said sliding resistance is an additional upward force added to said outer shelter in addition to that provided by said piezoelectric unit.
  • 4. A disposable lighter, as recited in claim 2, further comprising an ignition guiding arrangement which comprises a first guider provided on an outer side of said outer shelter and a second guider provide on an upper portion of an opposed sidewall of said gas casing wherein said first and second guiders provide finger grips for frictionally contacting a user's thumb and finger on said gas casing and said outer shelter respectively so as to slide said outer shelter on said gas casing.
  • 5. A disposable lighter, as recited in claim 3, further comprising an ignition guiding arrangement which comprises a first guider provided on an outer side of said outer shelter and a second guider provide on an upper portion of an opposed sidewall of said gas casing wherein said first and second guiders provide finger grips for frictionally contacting a user's thumb and finger on said gas casing and said outer shelter respectively so as to slide said outer shelter on said gas casing.
  • 6. A disposable lighter, as recited in claim 2, further comprising a safety locking arrangement for locking a sliding movement of said outer shelter on said gas casing, wherein said safety locking arrangement has a locking groove transversely provided on said inner side of said outer shelter and comprises a locking member having a control end rotatably mounted to said gas casing and a locking end adapted to move into said locking groove so as to lock up said outer shelter on said gas casing.
  • 7. A disposable lighter, as recited in claim 2, further comprising a safety locking arrangement for locking a sliding movement of said outer shelter on said gas casing, wherein said safety locking arrangement has a locking groove transversely provided on said sidewall of said gas casing and a locking hole provide on said outer shelter and aligned with said locking groove, said safety locking arrangement further comprising a locking member slidably received in said locking groove, a resilient element disposed in said locking groove for applying an urging force against said locking member to push said locking member towards said locking hole to lock up said outer shelter on said gas casing, and a pusher button slidably mounted on said outer shelter through said locking hole and arranged in such a manner that when said pusher button pushes said locking member into said locking groove, said locking member is moved out of said locking hole to release a blocking up of said outer shelter with respect to said gas casing, so that said outer shelter is capable of axially sliding on said gas casing.
  • 8. A disposable lighter, comprising:a gas casing receiving a fuel storage, Wherein said gas casing further has a receiving chamber formed on a lower portion of a sidewall of said gas casing and a guiding slot which is indented on said sidewall of said gas casing and extended from said receiving chamber to a ceiling of said gas casing; a gas emitting nozzle having an ignition tip appearing at said ceiling of said gas casing and communicating with said fuel storage for controlling a flow of gas, wherein said gas emitting nozzle further comprises a gas releasable valve and a gas lever having an engaging end engaged with said gas releasable valve and an actuating end arranged in such a manner that when said actuating end of said gas lever is depressed downwardly, said engaging end of said gas lever pivotally lifts up said gas releasable valve to release said gas from said fuel storage through said ignition tip; a piezoelectric unit comprising a main piezoelectric body, a movable operating part slidably extended therefrom, and a spark generating tip extended to a position close to said ignition tip of said gas emitting nozzle, wherein when said movable operating part is depressed with respect to said main piezoelectric body, said spark generating tip generates sparks to ignite said gas emitted from said ignition tip of said gas emitting nozzle, wherein said piezoelectric unit is disposed in said receiving chamber and said spark generating tip is guided to extend towards said ignition tip of said gas emitting nozzle through said guiding slot; an outer shelter slidably mounted on said sidewall of said gas casing and defining a receiving cavity between said outer shelter and said gas casing wherein said piezoelectric unit is received in said receiving cavity, wherein said outer shelter is shaped and sized to cover said sidewall of said gas casing in a slidably movable manner so as to enclose said receiving chamber and retain said piezoelectric unit in position; an actuating arm extended from an inner side of said outer shelter to a top end of said piezoelectric unit in such a manner that when said outer shelter is axially slid with respect to said casing, said actuating arm is driven to compress said piezoelectric unit so as to ignite said disposable lighter; a depressible arm extended from said inner side of said outer shelter to engage with said actuating end of said gas lever in such a manner that when said outer shelter is axially slid on said gas casing, said depressible arm is driven downwardly to depress said actuating end of said gas lever, so as to lift up said gas releasable valve for releasing said gas from said fuel storage; and a safety locking arrangement for locking a sliding movement of said outer shelter on said gas casing, wherein said safety locking arrangement has a locking groove transversely provided on said inner side of said outer shelter and comprises a locking member having a control end rotatably mounted to said gas casing and a locking end adapted to move into said locking groove so as to lock up said outer shelter on said gas casing.
  • 9. A disposable lighter, comprising:a gas casing receiving a fuel storage, wherein said gas casing further has a receiving chamber formed on a lower portion of a sidewall of said gas casing and a guiding slot which is indented on said sidewall of said gas casing and extended from said receiving chamber to a ceiling of said gas casing; a gas emitting nozzle having an ignition tip appearing at said ceiling of said gas casing and communicating with said fuel storage for controlling a flow of gas, wherein said gas emitting nozzle further comprises a gas releasable valve and a gas lever having an engaging end engaged with said gas releasable valve and an actuating end arranged in such a manner that when said actuating end of said gas lever is depressed downwardly, said engaging end of said gas lever pivotally lifts up said gas releasable valve to release said gas from said fuel storage through said ignition tip; a piezoelectric unit comprising a main piezoelectric body, a movable operating part slidably extended therefrom, and a spark generating tip extended to a position close to said ignition tip of said gas emitting nozzle, wherein when said movable operating part is depressed with respect to said main piezoelectric body, said spark generating tip generates sparks to ignite said gas emitted from said ignition tip of said gas emitting nozzle, wherein said piezoelectric unit is disposed in said receiving chamber and said spark generating tip is guided to extend towards said ignition tip of said gas emitting nozzle through said guiding slot; an outer shelter slidably mounted on said sidewall of said gas casing and defining a receiving cavity between said outer shelter and said gas casing wherein said piezoelectric unit is received in said receiving cavity, wherein said outer shelter is shaped and sized to cover said sidewall of said gas casing in a slidably movable manner so as to enclose said receiving chamber and retain said piezoelectric unit in position; an actuating arm extended from an inner side of said outer shelter to a top end of said piezoelectric unit in such a manner that when said outer shelter is axially slid with respect to said gas casing, said actuating arm is driven to compress said piezoelectric unit so as to ignite said disposable lighter; a depressible arm extended from said inner side of said outer shelter to engage with said actuating end of said gas lever in such a manner that when said outer shelter is axially slid on said gas casing, said depressible arm is driven downwardly to depress said actuating end of said gas lever, so as to lift up said gas releasable valve for releasing said gas from said fuel storage; and a safety locking arrangement for locking a sliding movement of said outer shelter on said gas casing, wherein said safety locking arrangement has a locking groove transversely provided on said sidewall of said gas casing and a locking hole provide on said outer shelter and aligned with said locking groove, said safety locking arrangement further comprising a locking member slidably received in said locking groove, a resilient element disposed in said locking groove for applying an urging force against said locking member to push said locking member towards said locking hole to lock up said outer shelter on said gas casing, and a pusher button slidably mounted on said outer shelter through said locking hole and arranged in such a manner that when said pusher button pushes said locking member into said locking groove, said locking member is moved out of said locking hole to release a blocking up of said outer shelter with respect to said gas casing, so that said outer shelter is capable of axially sliding on said gas casing.
US Referenced Citations (4)
Number Name Date Kind
2168732 Dubsky Aug 1939 A
6099300 Rice Aug 2000 A
D470268 Berry Feb 2003 S
20020102506 Berry et al. Aug 2002 A1