CA2298172A1 - Lighter with child resistant actuating lever - Google Patents
Lighter with child resistant actuating lever Download PDFInfo
- Publication number
- CA2298172A1 CA2298172A1 CA002298172A CA2298172A CA2298172A1 CA 2298172 A1 CA2298172 A1 CA 2298172A1 CA 002298172 A CA002298172 A CA 002298172A CA 2298172 A CA2298172 A CA 2298172A CA 2298172 A1 CA2298172 A1 CA 2298172A1
- Authority
- CA
- Canada
- Prior art keywords
- lighter
- ignition
- source
- push button
- spring
- 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.)
- Abandoned
Links
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000001273 butane Substances 0.000 description 9
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 9
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 9
- 230000000994 depressogenic effect Effects 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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
- F23Q2/164—Arrangements for preventing undesired ignition
Abstract
A lighter comprising an igniter, a fuel source and a push button actuator for releasing fuel from the fuel source via a nozzle in the vicinity of the igniter is disclosed. The lighter includes a spring which is placed in a position to act against the depression of the push button in order to increase the child resistance of the lighter.
Description
LIGHTER WITH CHILD RESISTANT ACTUATING LEVER
FIELD OF THE INVENTION
This invention relates to the field of lighters, such as cigarette lighters.
BACKGROUND OF THE INVENTION
Conventional butane lighters comprise a lighter body within which is housed a reservoir containing butane or other suitable fuel, a mounting frame affixed atop the lighter body, a nozzle inserted through the mounting frame into connected relationship with the reservoir, a lever for actuating the nozzle, and a piezoelectric igniter or a more conventional mechanical igniter such as a striker wheel, flint and flint-spring combination. The igniter is positioned close the rear end of the lever so that the igniter and the rear end of the lever may be actuated simultaneously or nearly so.
Lighters which pre-date butane lighters are similar to the above-identified conventional butane lighters except that instead of having a nozzle in connected relationship with the reservoir, a wick or similar device is used, and there is no need for a nozzle actuating lever. Such lighters typically have traditional mechanical igniters with striker wheels and flints.
While the traditional mechanical igniter with striker wheel and flint can still be found in the marketplace, the butane lighter equipped with a piezoelectric igniter has become very popular. Instead of using a striker wheel and flint, a modern lighter is equipped with a piezoelectric unit which draws a spark when operated. The piezoelectric unit is typically operated by a thumb-operated push cap which not only operates the lever for actuating the nozzle, but also operates the piezoelectric unit to draw a spark, causing a flame to shoot upward from the lighter.
Piezoelectric igniters are popular because the spark which they draw is very predictable compared with the older mechanical igniters known in the art.
The safety device of the present invention works effectively with either form of lighter and with either form of igniter.
One of the reasons for the popularity of modern lighters is the fact that the height of the flame produced by the lighter can be varied over a wide range by varying the amount of fuel allowed to be ejected from the lighter. The very feature that makes such lighters dangerous if they are ignited. When the lighter produces a flame in an uncontrolled circumstance, particularly when the lighter is set on its high setting, materials (such as curtains, clothing, hair) may accidentally be lit on fire. Modern butane lighters are particularly dangerous when they are in the hands of children. This is true whether the igniter is a traditional striker wheel and flint arrangement or is embodied by a more modern piezoelectric device.
SUMMARY OF THE INVENTION
In a preferred embodiment of the invention, the lighter comprises an igniter, a fuel source and a push button, typically thumb-operated, for releasing the fuel from the fuel source via a nozzle in the vicinity of the igniter. When the igniter is embodied by a traditional striker wheel and flint arrangement, the igniter wheel is positioned adj acent the push button so that the user can cause the striker wheel to rotate and can depress the push button in more or less one continuous motion. If, on the other hand, a piezoelectric igniter is used, then the piezoelectric igniter is typically operated as the push button is depressed to release the fuel from the fuel source. The lighter also includes a spring which is placed in a position to act against the depression of the push button in order to increase the child resistance of the lighter. With the spring action, additional force is required to activate push button making it more difficult for children to depress the push button in order to activate the lighter.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded view of a piezoelectric lighter of the type known in the prior art;
Figures lA and 1B depict the piezoelectric igniter unit shown in Figure 1 in greater detail;
Figure 2 is an exploded view of a piezoelectric lighter in accordance with the present invention.
Figures 2A and 2B show the push button in its normal unactuated state and in its actuated state, respectively;
Figure 2C is a bottom view of the push button or actuating lever;
FIELD OF THE INVENTION
This invention relates to the field of lighters, such as cigarette lighters.
BACKGROUND OF THE INVENTION
Conventional butane lighters comprise a lighter body within which is housed a reservoir containing butane or other suitable fuel, a mounting frame affixed atop the lighter body, a nozzle inserted through the mounting frame into connected relationship with the reservoir, a lever for actuating the nozzle, and a piezoelectric igniter or a more conventional mechanical igniter such as a striker wheel, flint and flint-spring combination. The igniter is positioned close the rear end of the lever so that the igniter and the rear end of the lever may be actuated simultaneously or nearly so.
Lighters which pre-date butane lighters are similar to the above-identified conventional butane lighters except that instead of having a nozzle in connected relationship with the reservoir, a wick or similar device is used, and there is no need for a nozzle actuating lever. Such lighters typically have traditional mechanical igniters with striker wheels and flints.
While the traditional mechanical igniter with striker wheel and flint can still be found in the marketplace, the butane lighter equipped with a piezoelectric igniter has become very popular. Instead of using a striker wheel and flint, a modern lighter is equipped with a piezoelectric unit which draws a spark when operated. The piezoelectric unit is typically operated by a thumb-operated push cap which not only operates the lever for actuating the nozzle, but also operates the piezoelectric unit to draw a spark, causing a flame to shoot upward from the lighter.
Piezoelectric igniters are popular because the spark which they draw is very predictable compared with the older mechanical igniters known in the art.
The safety device of the present invention works effectively with either form of lighter and with either form of igniter.
One of the reasons for the popularity of modern lighters is the fact that the height of the flame produced by the lighter can be varied over a wide range by varying the amount of fuel allowed to be ejected from the lighter. The very feature that makes such lighters dangerous if they are ignited. When the lighter produces a flame in an uncontrolled circumstance, particularly when the lighter is set on its high setting, materials (such as curtains, clothing, hair) may accidentally be lit on fire. Modern butane lighters are particularly dangerous when they are in the hands of children. This is true whether the igniter is a traditional striker wheel and flint arrangement or is embodied by a more modern piezoelectric device.
SUMMARY OF THE INVENTION
In a preferred embodiment of the invention, the lighter comprises an igniter, a fuel source and a push button, typically thumb-operated, for releasing the fuel from the fuel source via a nozzle in the vicinity of the igniter. When the igniter is embodied by a traditional striker wheel and flint arrangement, the igniter wheel is positioned adj acent the push button so that the user can cause the striker wheel to rotate and can depress the push button in more or less one continuous motion. If, on the other hand, a piezoelectric igniter is used, then the piezoelectric igniter is typically operated as the push button is depressed to release the fuel from the fuel source. The lighter also includes a spring which is placed in a position to act against the depression of the push button in order to increase the child resistance of the lighter. With the spring action, additional force is required to activate push button making it more difficult for children to depress the push button in order to activate the lighter.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded view of a piezoelectric lighter of the type known in the prior art;
Figures lA and 1B depict the piezoelectric igniter unit shown in Figure 1 in greater detail;
Figure 2 is an exploded view of a piezoelectric lighter in accordance with the present invention.
Figures 2A and 2B show the push button in its normal unactuated state and in its actuated state, respectively;
Figure 2C is a bottom view of the push button or actuating lever;
Figure 3A is a side exterior view of the lighter, shown fully assembled;
Figures 3B and 3C are side-sectional views, partially cut away, showing the internal arrangement of the lighter; and Figure 4 is a side sectional view of the piezoelectric igniter.
THE PRIOR ART
Figure 1 shows a conventional butane lighter of the type known in the prior art. The butane lighter includes a push button 1 and a piezoelectric unit 2, 3. Butane fuel is stored in a fuel reservoir 9 in the lighter and can be released to ambient via a valve adjacent or near nozzle 8. Piece 5 is used to help keep the various components in proper alignment, to conveniently encase them in lighter body 10 and to help attach cap 11.
Elements 2 and 3 of the piezoelectric unit are moveable with respect to each other and when they do move, they induce an electrical charge through piezoelectric action to produce a flame when the lighter is lit and the fuel is released. A piezoelectric unit 2, 3 is shown in greater detail in Figures lA and 1B. In Figure lA it is shown in its normal, unactuated state.
In Figure 1B it is shown in its actuated (depressed) spark inducing state. In normal operation, when the actuating lever or push button 1 is depressed, the piezoelectric device 2, 3 is actuated causing an electric current to be conducted through a conductor or conducting wire (not shown) to somewhere near the outlet of nozzle 8 as an ignition source. The depression of the push button or actuating lever 2 simultaneously causes the rear part of gas lever 6 to move in a downward direction. As a result, the front part of the gas lever 6, which engages nozzle 8, moves upwardly causing nozzle 8 to raise and its associated valve to open. Of course, the opening of the valve allows the fuel to flow or release from the fuel reservoir 9 to fuel the aforementioned flame. Such operations are quite simple and the lighter can be easily mishandled by a child.
In prior art lighters of the type shown in Figure 1 a force of 1.5 to 2.0 kgf is required to depress actuating lever or push button 1 downward so as to move elements 2 and 3 inward causing a spark to be generated.
A child typically possesses a thumb depressing force of up to 1.5 to 2.0 kgf and therefore a child can often operate the type of prior art lighter depicted by Figure 1.
DESCRIPTION OF A PREFERRED EMBODIMENT
Turning now to Figure 2, a lighter equipped with a preferred embodiment of the present invention is depicted. It is basically similar to the lighter shown in Figure 1, but is provided with a spring 4 which acts against the manual operation of push button or actuating lever 1. The push button 1 and element 2 of piezoelectric igniter 2, 3 are modified to accommodate spring 4.
After spring 4 is duly assembled with push button 1 and piezoelectric unit 2, 3 and the remaining parts are assembled, as also shown in Figures 3B and 3C, with spring 4 disposed about element 2, which preferably has a columnar shape. The bottom portion 4B of spring 4 rests on shoulder 3A of piezoelectric igniter unit 2, 3. The top 4A of spring 4 engages a shoulder or other surface 1B
in the interior of push button 1. Push button 1 is shown in a cutaway view in the Figures 2A and 2B and in a bottom view in Figure 2C in order to show better the interior shoulder 1B which is preferably provided at the base of channel 1C of the push button 1 when practicing the invention.
Figure 2A shows the igniter 3, push button or actuating lever 1 and spring 4 combination in its normal, unactuated position. At this time, spring 4 preferably assumes its full normal length in an at rest position without providing any rebounding force.
In order to ignite a flame, the top portion lA of push button or actuating lever 1 is pressed downwardly, typically by the user's thumb. Element 2 of piezoelectric unit 2, 3 moves downwardly under the action of the projection 1B inside push button or actuating lever 1 and thus assumes the position depicted by Figure 2B. The movement of element 2 relative to element 3 causes the piezoelectric effect to occur which in turn causes the lighter to be lit . The movement of element 2 also causes gas lever 6 to rock on its rounded front part 6A and against protuberances 12 as its arms 6C move in a clockwise direction (compare Figures 3B and 3C) as the bottom edges 1D of push button 1 bear thereagainst. Only one protuberance 12 is shown for ease of illustration, it being understood that preferably two such protuberances would be provided, one on each side of the lighter. Gas lever 6 has a notch 6B which engages nozzle 8, lifting it when element 2 is pushed downwardly by the action of push button 1. The lifting motion of nozzle 8 causes its associated valve to open and gas to flow from the reservoir 9 in the base of the lighter. Gas flow from nozzle 8 is preferably conducted by a gas pipe 7 to the point of combustion at element 5.
When lighting a flame, spring 4 resists the downward movement of push button or actuating lever 1. Thus, the compression of spring 4 provides a rebounding, upwardly directed force against the movement of push button or actuating lever 1 and therefore the force required to operate the lighter is increased.
The piezoelectric igniter 2, 3 includes a hammer 23A
which impacts a headpin 23B above ceramic 23C. The hammer 23A striking the headpin and hence the ceramic causes an electrical discharge to occur. The piezoelectric unit 2, 3 typically includes a return spring 23D for urging element 2 away from element 3.
Typically, the force required to overcome spring 23D is on the order of 1 . 5 to 2 . 0 kgf . It is preferred to use an auxiliary spring 4 in order to increase the force required to activate the lighter as opposed to merely increasing the spring constant of spring 23D. The reason for this is that increasing the spring constant of spring 23D could tend to shorten the life of the piezoelectric igniter unit 2, 3. Thus, the use of an auxiliary spring 4 is preferred.
_ g _ Preferably, the auxiliary spring 4 is selected such that the force required to light the lighter is at least 3.5 kgf and more preferably falls in the range of 5.5 to 6.0 kgf. A child typically does not possess enough strength to be able to operate push button 1 and also overcome the additional resistance provided by spring 4.
An adult, on the other hand, can impart more than enough force using their thumb to overcome the resistance of spring 4 and cause element 2 of the piezoelectric unit to collide with components 23B and 23C of portion 3 of the piezoelectric unit to generate an electrical discharge and light a flame.
When the push button 1 is released, it returns to its normal position shown in Figures 2A and 3B. This allows arms 6C to move in a counterclockwise direction allowing the valve associated with nozzle 8 to close and the flame to be extinguished.
Assuming that an auxiliary spring 4 is used to increase the force required to activate the lighter as discussed above, then a conventional piezoelectric igniter 2, 3 may be used. Indeed, in practicing the present invention, the applicant prefers to use a conventional piezoelectric igniter 2, 3. In the case of some prior art piezoelectric igniters 2, 3, they induce a spark when the top element 2 of the piezoelectric unit is moved about 80 0 of its full possible stroke into element 3. As indicated above, the spring constant of auxiliary spring 4 is selected such that the total force required to activate the lighter, i.e. when the piezoelectric igniter 2, 3 is at least 3.5 kgf.
The present invention has been shown in connection with a piezoelectric lighter given the popularity of piezoelectric lighters in the marketplace. Thus, in the preferred embodiment, the invention is used in connection with a piezoelectric lighter. However, the invention can also be used in connection with other prior art lighters, such as those of the type having a mechanical igniter, comprising a striker wheel, flint and flint-spring combination. It is known, for example, to use a push button or other actuating lever to rotate a striker wheel or other mechanical means to generate a spark from a flint. A spring may be used to resist the depression of such a push button or actuating lever or to resist the rotational movement of the striker wheel to thereby make the lighter difficult to be used when placed in the hands of children, but yet still convenient to use in the hands of an adult.
Having described the invention in connection with a preferred embodiment thereof, modification may now suggest itself to those skilled in the art. The invention itself is not to be limited to the embodiments disclosed, except as required by the following claims.
Figures 3B and 3C are side-sectional views, partially cut away, showing the internal arrangement of the lighter; and Figure 4 is a side sectional view of the piezoelectric igniter.
THE PRIOR ART
Figure 1 shows a conventional butane lighter of the type known in the prior art. The butane lighter includes a push button 1 and a piezoelectric unit 2, 3. Butane fuel is stored in a fuel reservoir 9 in the lighter and can be released to ambient via a valve adjacent or near nozzle 8. Piece 5 is used to help keep the various components in proper alignment, to conveniently encase them in lighter body 10 and to help attach cap 11.
Elements 2 and 3 of the piezoelectric unit are moveable with respect to each other and when they do move, they induce an electrical charge through piezoelectric action to produce a flame when the lighter is lit and the fuel is released. A piezoelectric unit 2, 3 is shown in greater detail in Figures lA and 1B. In Figure lA it is shown in its normal, unactuated state.
In Figure 1B it is shown in its actuated (depressed) spark inducing state. In normal operation, when the actuating lever or push button 1 is depressed, the piezoelectric device 2, 3 is actuated causing an electric current to be conducted through a conductor or conducting wire (not shown) to somewhere near the outlet of nozzle 8 as an ignition source. The depression of the push button or actuating lever 2 simultaneously causes the rear part of gas lever 6 to move in a downward direction. As a result, the front part of the gas lever 6, which engages nozzle 8, moves upwardly causing nozzle 8 to raise and its associated valve to open. Of course, the opening of the valve allows the fuel to flow or release from the fuel reservoir 9 to fuel the aforementioned flame. Such operations are quite simple and the lighter can be easily mishandled by a child.
In prior art lighters of the type shown in Figure 1 a force of 1.5 to 2.0 kgf is required to depress actuating lever or push button 1 downward so as to move elements 2 and 3 inward causing a spark to be generated.
A child typically possesses a thumb depressing force of up to 1.5 to 2.0 kgf and therefore a child can often operate the type of prior art lighter depicted by Figure 1.
DESCRIPTION OF A PREFERRED EMBODIMENT
Turning now to Figure 2, a lighter equipped with a preferred embodiment of the present invention is depicted. It is basically similar to the lighter shown in Figure 1, but is provided with a spring 4 which acts against the manual operation of push button or actuating lever 1. The push button 1 and element 2 of piezoelectric igniter 2, 3 are modified to accommodate spring 4.
After spring 4 is duly assembled with push button 1 and piezoelectric unit 2, 3 and the remaining parts are assembled, as also shown in Figures 3B and 3C, with spring 4 disposed about element 2, which preferably has a columnar shape. The bottom portion 4B of spring 4 rests on shoulder 3A of piezoelectric igniter unit 2, 3. The top 4A of spring 4 engages a shoulder or other surface 1B
in the interior of push button 1. Push button 1 is shown in a cutaway view in the Figures 2A and 2B and in a bottom view in Figure 2C in order to show better the interior shoulder 1B which is preferably provided at the base of channel 1C of the push button 1 when practicing the invention.
Figure 2A shows the igniter 3, push button or actuating lever 1 and spring 4 combination in its normal, unactuated position. At this time, spring 4 preferably assumes its full normal length in an at rest position without providing any rebounding force.
In order to ignite a flame, the top portion lA of push button or actuating lever 1 is pressed downwardly, typically by the user's thumb. Element 2 of piezoelectric unit 2, 3 moves downwardly under the action of the projection 1B inside push button or actuating lever 1 and thus assumes the position depicted by Figure 2B. The movement of element 2 relative to element 3 causes the piezoelectric effect to occur which in turn causes the lighter to be lit . The movement of element 2 also causes gas lever 6 to rock on its rounded front part 6A and against protuberances 12 as its arms 6C move in a clockwise direction (compare Figures 3B and 3C) as the bottom edges 1D of push button 1 bear thereagainst. Only one protuberance 12 is shown for ease of illustration, it being understood that preferably two such protuberances would be provided, one on each side of the lighter. Gas lever 6 has a notch 6B which engages nozzle 8, lifting it when element 2 is pushed downwardly by the action of push button 1. The lifting motion of nozzle 8 causes its associated valve to open and gas to flow from the reservoir 9 in the base of the lighter. Gas flow from nozzle 8 is preferably conducted by a gas pipe 7 to the point of combustion at element 5.
When lighting a flame, spring 4 resists the downward movement of push button or actuating lever 1. Thus, the compression of spring 4 provides a rebounding, upwardly directed force against the movement of push button or actuating lever 1 and therefore the force required to operate the lighter is increased.
The piezoelectric igniter 2, 3 includes a hammer 23A
which impacts a headpin 23B above ceramic 23C. The hammer 23A striking the headpin and hence the ceramic causes an electrical discharge to occur. The piezoelectric unit 2, 3 typically includes a return spring 23D for urging element 2 away from element 3.
Typically, the force required to overcome spring 23D is on the order of 1 . 5 to 2 . 0 kgf . It is preferred to use an auxiliary spring 4 in order to increase the force required to activate the lighter as opposed to merely increasing the spring constant of spring 23D. The reason for this is that increasing the spring constant of spring 23D could tend to shorten the life of the piezoelectric igniter unit 2, 3. Thus, the use of an auxiliary spring 4 is preferred.
_ g _ Preferably, the auxiliary spring 4 is selected such that the force required to light the lighter is at least 3.5 kgf and more preferably falls in the range of 5.5 to 6.0 kgf. A child typically does not possess enough strength to be able to operate push button 1 and also overcome the additional resistance provided by spring 4.
An adult, on the other hand, can impart more than enough force using their thumb to overcome the resistance of spring 4 and cause element 2 of the piezoelectric unit to collide with components 23B and 23C of portion 3 of the piezoelectric unit to generate an electrical discharge and light a flame.
When the push button 1 is released, it returns to its normal position shown in Figures 2A and 3B. This allows arms 6C to move in a counterclockwise direction allowing the valve associated with nozzle 8 to close and the flame to be extinguished.
Assuming that an auxiliary spring 4 is used to increase the force required to activate the lighter as discussed above, then a conventional piezoelectric igniter 2, 3 may be used. Indeed, in practicing the present invention, the applicant prefers to use a conventional piezoelectric igniter 2, 3. In the case of some prior art piezoelectric igniters 2, 3, they induce a spark when the top element 2 of the piezoelectric unit is moved about 80 0 of its full possible stroke into element 3. As indicated above, the spring constant of auxiliary spring 4 is selected such that the total force required to activate the lighter, i.e. when the piezoelectric igniter 2, 3 is at least 3.5 kgf.
The present invention has been shown in connection with a piezoelectric lighter given the popularity of piezoelectric lighters in the marketplace. Thus, in the preferred embodiment, the invention is used in connection with a piezoelectric lighter. However, the invention can also be used in connection with other prior art lighters, such as those of the type having a mechanical igniter, comprising a striker wheel, flint and flint-spring combination. It is known, for example, to use a push button or other actuating lever to rotate a striker wheel or other mechanical means to generate a spark from a flint. A spring may be used to resist the depression of such a push button or actuating lever or to resist the rotational movement of the striker wheel to thereby make the lighter difficult to be used when placed in the hands of children, but yet still convenient to use in the hands of an adult.
Having described the invention in connection with a preferred embodiment thereof, modification may now suggest itself to those skilled in the art. The invention itself is not to be limited to the embodiments disclosed, except as required by the following claims.
Claims (9)
1. An lighter comprising a container for storing a combustible fuel;
a source of ignition, the source of ignition being responsive to the manual manipulation of an actuating member and a member resisting the operation of the actuating member so that the source of ignition is not activated in response to forces less than approximately 3.5 kgf.
a source of ignition, the source of ignition being responsive to the manual manipulation of an actuating member and a member resisting the operation of the actuating member so that the source of ignition is not activated in response to forces less than approximately 3.5 kgf.
2. The lighter of claim 1, wherein the resisting member is a spring.
3. The lighter of claim 2, wherein the actuating member is a manually-operated push button engaging said spring.
4. The lighter of claim 3, wherein the ignition unit is a piezoelectric device having first and second members, the piezoelectric device generating electricity in response to movement of the first and second members relative to each other, the spring engaging the piezoelectric device.
5. The lighter of claim 4, wherein the push button includes a channel for receiving at least a portion of said spring and includes a projection engaging the first member of said piezoelectric device.
6. The lighter of claim 4, wherein said first element of said piezoelectric device extends from the second element of the piezoelectric device in a columnar fashion and extends a length from the second device approximately equal to a length of said spring in its at-rest position.
7. The lighter of claim 6, wherein said first member of said piezoelectric device is moveable relative to said second member in response to manual manipulation of said push button, said piezoelectric device including an internal spring which cooperates with the resisting member to resist operation of the actuating member.
8. An igniter for a lighter, the igniter comprising first and second elements moveable relative to each other for generating a spark in response to movement of the first element relative to the second element;
a manually actuated member engaging the first member; and a compression member resisting the movement of the first member relative to the second member for the purpose of generating a spark to forces imposed between the manually operated member and the second member less than approximately 3.5 kgf.
a manually actuated member engaging the first member; and a compression member resisting the movement of the first member relative to the second member for the purpose of generating a spark to forces imposed between the manually operated member and the second member less than approximately 3.5 kgf.
9. A lighter comprising a container for storing a combustible fuel;
a source of ignition, the source of ignition comprising at least 2 members which are moveable with respect to each other, the source of ignition including an internal spring for urging the two members away from each other, the source of ignition causing a spark to occur when the two members are urged together;
a push button engaging one of the members of the source of ignition and causing the source of ignition to draw a spark in response to manual depression of the push button; and a member disposed externally of said source of ignition, said resisting member cooperating with the internal spring inside the source of ignition to resist depression of the push button.
a source of ignition, the source of ignition comprising at least 2 members which are moveable with respect to each other, the source of ignition including an internal spring for urging the two members away from each other, the source of ignition causing a spark to occur when the two members are urged together;
a push button engaging one of the members of the source of ignition and causing the source of ignition to draw a spark in response to manual depression of the push button; and a member disposed externally of said source of ignition, said resisting member cooperating with the internal spring inside the source of ignition to resist depression of the push button.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/261,451 | 1999-03-03 | ||
| US09/261,451 US6533576B1 (en) | 1999-03-03 | 1999-03-03 | Lighter with child resistant actuating lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2298172A1 true CA2298172A1 (en) | 2000-09-03 |
Family
ID=22993371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002298172A Abandoned CA2298172A1 (en) | 1999-03-03 | 2000-02-11 | Lighter with child resistant actuating lever |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US6533576B1 (en) |
| CA (1) | CA2298172A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1337791A2 (en) * | 2000-11-03 | 2003-08-27 | Bic Corporation | Multi-mode lighter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6533576B1 (en) * | 1999-03-03 | 2003-03-18 | Polycity Enterprise Limited | Lighter with child resistant actuating lever |
| US20030031968A1 (en) * | 2001-02-26 | 2003-02-13 | Carel Sewalt | Child resistant gas lighters |
| US6849990B2 (en) * | 2003-01-06 | 2005-02-01 | Kin Chung Li | Safety piezoelectric lighter |
| GB2398368A (en) * | 2003-02-08 | 2004-08-18 | Polycity Entpr Ltd | Piezoelectric lighter including child resistant igniter assembly |
| US20080248435A1 (en) * | 2004-10-19 | 2008-10-09 | Terry Clark | Devices For High Voltage Ignition of Combustible Gas |
| CN1616888A (en) * | 2004-11-18 | 2005-05-18 | 冷博 | Disposable electric wind-proof lighter |
| CN100368729C (en) * | 2005-06-24 | 2008-02-13 | 吴东升 | Ignitor without igniting press button |
| US20070224566A1 (en) * | 2006-03-13 | 2007-09-27 | Ruan Junjun | Cigarette lighter with limited flint wheel turning radius |
| WO2007140647A1 (en) * | 2006-06-05 | 2007-12-13 | Guojian He | A weighting piezoelectric safety lighter |
| US20070287114A1 (en) * | 2006-06-13 | 2007-12-13 | Ying Fang Huang | Lighter having safety device |
| US8653942B2 (en) | 2008-08-20 | 2014-02-18 | John Gibson Enterprises, Inc. | Portable biometric lighter |
| US10502419B2 (en) | 2017-09-12 | 2019-12-10 | John Gibson Enterprises, Inc. | Portable biometric lighter |
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| FR495249A (en) | 1919-01-28 | 1919-10-02 | Octave Vuillet | Interrupted toothed wheel for igniters |
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| US5509799A (en) | 1994-10-24 | 1996-04-23 | Polycity Industrial Ltd. | Flint replaceable lighter |
| US5769625A (en) | 1996-01-04 | 1998-06-23 | Polycity Industrial Limited | Safety lighter with smooth striker wheel edges |
| US5584683A (en) | 1996-03-05 | 1996-12-17 | Polycity Industrial Limited | Safety lighter with striker wheel stopper |
| US5662466A (en) * | 1996-04-12 | 1997-09-02 | Cheng; Mei-Jung | Safety structure for electronic lighters |
| US5788476A (en) | 1996-04-30 | 1998-08-04 | Polycity Industrial Ltd | Childproof piezoelectric lighter with sliding mechanism |
| US5846069A (en) | 1996-08-20 | 1998-12-08 | Polycity Industrial Limited | Safety lighter with wheel hood |
| US5854530A (en) * | 1996-12-18 | 1998-12-29 | Bic Corporation | Piezoelectric lighter which has a higher level of difficulty for operation |
| US5971751A (en) * | 1997-06-05 | 1999-10-26 | Chun Ching Yeh | Safety apparatus of a piezoelectric lighter |
| US6533576B1 (en) * | 1999-03-03 | 2003-03-18 | Polycity Enterprise Limited | Lighter with child resistant actuating lever |
-
1999
- 1999-03-03 US US09/261,451 patent/US6533576B1/en not_active Expired - Fee Related
-
2000
- 2000-02-11 CA CA002298172A patent/CA2298172A1/en not_active Abandoned
-
2002
- 2002-07-30 US US10/209,536 patent/US20020197577A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1337791A2 (en) * | 2000-11-03 | 2003-08-27 | Bic Corporation | Multi-mode lighter |
| EP1337791A4 (en) * | 2000-11-03 | 2005-11-23 | Bic Corp | Multi-mode lighter |
Also Published As
| Publication number | Publication date |
|---|---|
| US20020197577A1 (en) | 2002-12-26 |
| US6533576B1 (en) | 2003-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20060213 |