EP1235030A2 - Sicherheitsvorrichtung für piezo-elektrische Feuerzeuge - Google Patents
Sicherheitsvorrichtung für piezo-elektrische Feuerzeuge Download PDFInfo
- Publication number
- EP1235030A2 EP1235030A2 EP02003274A EP02003274A EP1235030A2 EP 1235030 A2 EP1235030 A2 EP 1235030A2 EP 02003274 A EP02003274 A EP 02003274A EP 02003274 A EP02003274 A EP 02003274A EP 1235030 A2 EP1235030 A2 EP 1235030A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking member
- locking
- ignition cap
- ignition
- piezoelectric lighter
- 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.)
- Withdrawn
Links
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000000994 depressogenic effect Effects 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 210000003813 thumb Anatomy 0.000 abstract description 5
- 230000000881 depressing effect Effects 0.000 description 7
Images
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
- F23Q2/28—Lighters characterised by electrical ignition of the fuel
- F23Q2/285—Lighters characterised by electrical ignition of the fuel with spark ignition
- F23Q2/287—Lighters characterised by electrical ignition of the fuel with spark ignition piezoelectric
Definitions
- the present invention relates to a piezoelectric lighter, and more particularly to a safety arrangement for piezoelectric lighter wherein the safety arrangement normally locks the ignition cap of the piezoelectric lighter so as to prevent the piezoelectric lighter from being ignited accidentally or by children.
- Piezoelectric lighters have been known and sold throughout the world.
- the conventional push-down type piezoelectric generally comprises a cap which covers on top of the lighter.
- a user In order to ignite the lighter, a user must open the cap and downwardly depress an ignition button.
- the cap can prevent the lighter from being ignited accidentally. However, it cannot stop children from the usage of the piezoelectric lighter.
- the push-down type piezoelectric lighter button may employ a safety switch to prevent the depression of the ignition button.
- the ignition button must be pushed to slide downwardly and rearwardly at the same time for ignition, the conventional safety switch designed for locking up the downward ignition button cannot fit the structure of such slid-down type piezoelectric lighter.
- U.S. patent 6,135,761 generally suggests an improved slide-down type piezoelectric lighter which comprises a locking member disposed in the ignition cap for blocking up the ignition cap from being slid sidewardly with respect to a casing of the piezoelectric lighter so as to lock up the ignition cap from ignition.
- an embodiment thereof teaches a locking member downwardly extended into the casing of the lighter in order to block up the rotation of the ignition cap.
- more alternative embodiments can be derived and developed therefrom.
- a main object of the present invention is to provide a safety arrangement for piezoelectric lighter which can prevent the lighter from being ignited accidentally or by children.
- Another object of the present invention is to provide a safety arrangement for piezoelectric lighter that normally locks up the slide-down ignition motion of the pusher cap so as to prevent any unwanted ignition of the lighter.
- Another object of the present invention is to provide a safety arrangement for piezoelectric lighter, wherein in order to rotate the ignition cap downwardly and rearwardly so as to ignite the lighter, a locking member of the safety arrangement must be manipulated and remained in an unlocking position. Therefore, children under five years old are unable to complete the ignition operation.
- Another object of the present invention is to provide a safety arrangement for piezoelectric lighter which not only normally retains in a locked condition but also automatically return to a locked condition after each ignition operation so as to prevent any unintentional ignition of the lighter.
- the present invention provides a safety arrangement for piezoelectric lighter, which comprises:
- the piezoelectric lighter 1 such as a standard piezoelectric lighter, comprises a casing 10 receiving a liquefied gas storage 11 and an ignition cavity 101 provided therein, a gas emitting nozzle 15 disposed in the casing 10 and communicating with the liquefied gas storage 11 for control a flow of gas, a piezoelectric unit 13 disposed in the casing 10 for generating piezoelectricity, and a safety arrangement 2 which comprises an ignition cap 21, a locking member 22 for blocking up the ignition cap 21 from being slid sidewardly with respect to a rear side of the casing 10 of the piezoelectric lighter 1, and a resilient element 23 disposed between the locking member 22 and the ignition cap 21 for applying an urging pressure against the locking member 22 so as to normally retain the locking member 22 in the locking position.
- a safety arrangement 2 which comprises an ignition cap 21, a locking member 22 for blocking up the ignition cap 21 from being slid sidewardly with respect to a rear side of the casing 10 of the piezoelectric lighter 1, and a resilient element
- the piezoelectric unit 13, which is disposed in the casing 10, comprises a movable operating part 131 extended upwardly and an ignition tip 16 extended to a position close to the gas emitting nozzle 15, wherein when the movable operating part 131 is depressed downwardly, the ignition tip 16 generates sparks to ignite the gas emitted from the gas emitting nozzle 15 at the same time.
- the casing 10 includes an interior case 101 and an exterior case 102.
- the ignition cap 21 is sildably mounted on the interior case 101 of the casing 10 by pivotally connecting two downwardly extended pivot arms 211 of the ignition cap 21 with a lower portion of the interior case 101 so as to pivotally support the ignition cap 21 in a radially movable manner.
- a rear portion of the ignition cap 21 positioned above a top end of the movable operating part 131 of the piezoelectric unit 13 is functioned as a pusher 212 and arranged in such a manner that when the ignition cap 21 is pushed downwardly and rearwardly with respect to the casing 10 at the same time, the movable operating part 131 of the piezoelectric unit 13 is depressed to ignite the piezoelectric lighter 1.
- the ignition cap 21 has an operation slot 213 provided on a rear portion thereof to communicate with outside.
- the locking member 22 is movably attached to a rear portion of the ignition cap 21 so as to lock up the ignition cap 21 from ignition, wherein an upper rear portion of the locking member 22 forms as an operation button 221 extended to the operation slot 213 of the ignition cap 21 for operating the locking member 22 to move from a normally locking position to an unlocking position.
- the ignition cap 21 is locked for downward and rearward movement by blocking the locking member 22 with the casing 10 so as to prevent ignition.
- the locking member 22 is moved to release the blocking up of the ignition cap 21 with the casing 10, so that the ignition cap 21 is capable of being slid downwardly and sidewardly to ignite the piezoelectric lighter 1.
- the ignition cap 21 has a locker cavity 215 provided below the pusher 212 thereof for receiving the safety arrangement 2 therein. Moreover, a rear wall 210 of the ignition cap 21 has an opening provide thereon forming the operation slot 213, through which the locker cavity 215 can communicate with outside, and a stopping edge 218 right above the operation slot 213.
- an outer side of a top end of the locking member 22 forms the operation button 221 and a bottom end portion of the locking member 22 is tapered to form a locking latch 222.
- a stopper 223 is integrally and upwardly protruded from an inner side of the top end of the locking member 22 and a spring holder 224 is frontwardly protruded from a front side of the top end of the locking member 22.
- the locking member 22, between the operation button 221 and the locking latch 222, is pivotally mounted in the locker cavity 215 by a pivot pin 24 in such a manner that, as shown in Fig. 2A, the operation button 221 is pressed by the resilient element to outwardly protrude from the casing 10 through the operation slot 213 while the locking latch 222 is positioned at a locking position, i.e. adjacent to an outer wall 17 of the casing 10.
- the resilient element 23 is a compression spring mounted between the locking member 22 and an interior vertical support wall 216 of the locker cavity 215 by connecting one end with the spring holder 224 and the other end engaged in a holding hole 217 provided on the support wall 216, wherein the resilient element 23 applies an urging force against the operation button 221 to push it rearwardly until the stopper 223 is stopped by the stopping edge 218 of the ignition cap 21, wherein the locking latch 222 is slightly rotated to extended below the locker cavity 215 and maintain in such a locking position that substantially blocks any sideward and downward movement of the ignition cap 21. It is because, as shown in Fig.
- the locking latch 222 of the locking member 22 will be driven more inwards to hit on a top edge of the outer wall 17.
- the outer wall 17 acts as a locker to block the downwards and rearwards movement of the ignition cap 21 so as to prevent the movable operating part 131 of the piezoelectric unit 13 from being depressed to ignite the piezoelectric lighter 1.
- the user To ignite the piezoelectric lighter 1, the user must unlock the locking member 22 and operate the ignition cap 21 at the same time. As shown in Fig. 2B, the user must use a lower portion of his or her thumb to inwardly press in the operation button 221 of the locking member, so that the locking member 22 will be pushed to pivotally rotate upwards about the pivot pin 24 so as to move the tapered locking latch 222 of the locking member 22 out of the casing 10, i.e. in an unlocking position, and then the user can use an upper portion of his or her thumb to depress the pusher 212 of the ignition cap 21.
- the ignition cap 21 Since the press-in action of the operation button 221 moves the locking member 22 to the unlocking position, where the slope surface 222A of the locking latch 222 is aligned with the slide down path of the ignition cap 21 so that the locking latch 222 will not block the movement path of the ignition cap 21, the ignition cap 21 is free to be depressed downwardly and sidewardly to depress down the movable operating part 131 of the piezoelectric unit 13 to ignite the piezoelectric lighter 1.
- the user may release the depressing of the operation button 221 of the locking member 22.
- the user may simply remain pressing against the pusher 212 of ignition cap 21.
- the compressed piezoelectric unit 13 will rebound to its original form which pushes the ignition cap 21 back to its original locking position.
- the slope surface 222A of the locking latch 222 will slide along the top edge of the outer wall 17 of the casing 10 and back into the casing 10. The compressed resilient element 23 will then rebound rearwardly the operation button 221 and force the locking member 22 remaining at its locking position.
- Figs. 3 and 4A illustrates a first alternative mode of the above first preferred embodiment of the piezoelectric lighter 1' of the present invention, wherein the operation button 221' of the locking member 22 is modified to affix on top of the locking member 22 and substitute the stopper 223. Moreover, a guiding slot 25 is additionally formed on a top surface of the pusher 212 of the ignition cap 21, wherein the operation button 221' is frontwardly and upwardly extended to slidably positioned at the guiding slot 25. Therefore, to unlock the locking member 22 and operate the ignition cap 21 at the same time, as shown in Fig.
- the user must push the operation button 221' forwards so as to pivotally move the tapered locking latch 222 of the locking member 22 out of the casing 10, i.e. in an unlocking position, and then the user can depress the pusher 212 of the ignition cap 21. Since the front-pushing action of the operation button 221' moves the locking member 22 to the unlocking position, where the slope surface 222A of the locking latch 222 is aligned with the slide down path of the ignition cap 21 so that the locking latch 222 will not block the movement path of the ignition cap 21, the ignition cap 21 is free to be depressed downwardly and sidewardly to depress down the movable operating part 131 of the piezoelectric unit 13 to ignite the piezoelectric lighter 1'.
- the user may release the front-pushing of the operation button 221' of the locking member 22. While releasing the sideward force on the ignition cap 21, the compressed piezoelectric unit 13 will rebound to its original form, which pushes the ignition cap 21 back to its original locking position. Furthermore, the slope surface 222A of the locking latch 222 will slide along the top edge of the outer wall 17 of the casing 10 and back into the casing 10. The compressed resilient element 23 will then rebound rearwardly the operation button 221' and force the locking member 22 remaining at its locking position.
- Fig. 5 illustrates a second alternative mode of the above first preferred embodiment of the piezoelectric unit 1" of the present invention, wherein the operation button 221" of the locking member 22 is modified to affix on a top side of the locking member 22 and substitute the stopper 223. Moreover, a guiding slot 25" is additionally formed on a side surface of the pusher 212 of the ignition cap 21, wherein the operation button 221" is frontwardly and sidewardly extended to slidably positioned at the guiding slot 25. Therefore, to unlock the locking member 22 and operate the ignition cap 21 at the same time, the user must move the operation button 221" forwards so as to pivotally move the tapered locking latch 222 of the locking member 22 out of the casing 10, i.e.
- the user can depress the pusher 212 of the ignition cap 21. Since the front-moving action of the operation button 221" moves the locking member 22 to the unlocking position, where the slope surface 222A of the locking latch 222 is aligned with the slide down path of the ignition cap 21 so that the locking latch 222 will not block the movement path of the ignition cap 21, the ignition cap 21 is free to be depressed downwardly and sidewardly to depress down the movable operating part 131 of the piezoelectric unit 13 to ignite the piezoelectric lighter 1". After the piezoelectric lighter 1" is ignited, the user may release the front-moving of the operation button 221" of the locking member 22.
- the compressed piezoelectric unit 13 While releasing the sideward force on the ignition cap 21, the compressed piezoelectric unit 13 will rebound to its original form, which pushes the ignition cap 21 back to its original locking position. Furthermore, the slope surface 222A of the locking latch 222 will slide along the top edge of the outer wall 17 of the casing 10 and back into the casing 10. The compressed resilient element 23 will then rebound rearwardly the operation button 221" and force the locking member 22 remaining at its locking position.
- Fig. 6 illustrates a third alternative mode of the above first preferred embodiment of the present invention, wherein the two side walls of the ignition cap 21 are substituted by two downwardly and rearwardly extending arms 219 for pivotally mounting the locking member 21. Also, the ignition cavity 215 is the spaced between the two arms 219 and the pusher 212.
- the third alternative mode functions exactly like the first preferred embodiment as shown in Fig. 1.
- Figs. 7 to 8B illustrates a fourth alternative mode of the first preferred embodiment of the piezoelectric unit 1A of the present invention, which is an alternative mode of the above second alternative mode as shown in Figs. 3 to 4B.
- the locking member 22A also comprises an operation button 221A at a top end portion thereof and a locking latch 222A at a bottom end portion thereof.
- the locking member 22a is pivotally mounted in the locker cavity 215 of the ignition cap 21 at a L-shaped upper portion 225A thereof, so as to position the operation button 221A at the guiding slot 25 of the ignition cap 21 while the spring holder 224A is downwardly extended from the operation button 221A.
- the resilient element 23A is modified to vertically mount between the operation button 221A and an interior horizontal support wall 216A inside the locker cavity 215 by connecting a top end with the spring holder 224A and a bottom end engaged in a holding hole 217A provided on the support wall 216A.
- the user must first depress the operation button 221A downwards so as to pivotally move the tapered locking latch 222A of the locking member 22A out of the casing 10, i.e. in an unlocking position, as shown in Fig. 8B, and then the user can further depress the pusher 212 of the ignition cap 21. Since the depressing action of the operation button 221A moves the locking member 22A to the unlocking position, where the locking latch 222 will not block the movement path of the ignition cap 21, i.e. the ignition cap 21 is free to be depressed downwardly and sidewardly to depress down the movable operating part 131 of the piezoelectric unit 13 to ignite the piezoelectric lighter 1A.
- the user may release the depressing of the operation button 221A of the locking member 22A. While further releasing the sideward force on the ignition cap 21, the compressed piezoelectric unit 13 will rebound to its original form, which pushes the ignition cap 21 back to its original locking position. Furthermore, the locking latch 222A will slide along the top edge of the outer wall 17 of the casing 10 and back into the casing 10. The compressed resilient element 23A will then rebound upwardly the operation button 221A and force the locking member 22A remaining at its locking position.
- a second preferred embodiment of the piezoelectric lighter 1B of the present invention is illustrated, wherein the pusher 212 B of the ignition cap 21B has a guiding slot 25B provided thereon and no operation slot.
- An indention provided at a top edge of the outer wall 17B forms the operation slot 213B.
- the locking member 228. is a curved body having a bottom tail portion horizontally extended to form the locking latch 222B and the operation button 221A is integrally provided at a top portion of the locking member 22B, wherein locking member 22B is supported to have the locking latch 222B extended to insert in the operation slot 213B and the operation button is slidably positioned in the guiding slot 25B.
- the locking member 22B also comprises a spring holder 224B projected from a rear side thereof.
- the resilient element 23B is mounted in the locker cavity 215B with a front end supported by the spring holder 224B and a rear end supported by a spring supporter 219B protruded from a rear wall of the ignition cap 21B.
- the resilient element 23B pushes the locking member 22B forwards to maintain the locking member 22B in a locking position, wherein the locking latch 222B is extended to engage in the operation slot 213B that blocks the ignition cap 21B from being pivotally moved downwardly and rearwardly by the outer wall 17B of the casing 10B, so as to lock up the ignition cap 21B from ignition.
- the user in order to ignite the piezoelectric lighter 1B, the user needs to use his or her thumb to push the operation button 221B rearwardly so as to compress the resilient element 23B and drive the locking member 22B rearwardly to a unlocking position where the locking latch 222B moves out of the operation slot 213B so that the inclined curved body of the locking member 22B will not block with the outer wall 17B .
- the blocking of the ignition cap 21B is released and the user can easily ignite the piezoelectric lighter 1B by depressing the ignition cap 21B downwardly and rearwardly.
- the compressed piezoelectric unit When the user also releases the depressing force on the pusher 212B, the compressed piezoelectric unit will rebound to its original form which pushes the ignition cap 21B back to its original locking position. Furthermore, the compressed resilient element 23B will then rebound forwardly the locking member 22B to its locking position.
- Figs. 11A and 11B illustrates an alternative resilient element for the above second preferred embodiment of the present invention, wherein a U-shaped spring or a Z-shaped spring element 23B" can be used to substitute the regularly spring 23B as described in the above second preferred embodiment as shown in Figs. 9 to 10B.
- Fig. 12 illustrates a first alternative mode of the above second preferred embodiment of the present invention, which is structurally identical to the second preferred embodiment, except that the sliding slot 25B of the second preferred embodiment is provided on a top wall of the pusher 212B of the ignition cap 21B but the sliding slot 25B' of this first alternative mode is provided on a side wall of the pusher 212B of the ignition cap 21B and the operation button 221B is extended sidewardly from at top end of the locking member 22B to slidably placed in the sliding slot 25B'.
- a piezoelectric lighter 1C according to a third preferred embodiment of the present invention is illustrated, which is structurally and functionally similar to the above first and second embodiment that the piezoelectric lighter 1C also employed with a safety arrangement comprising which comprises an ignition cap 21C, a locking member 22C, and a resilient element 23C.
- the ignition cap 21C is also slidably mounted on the casing 10C in a radially movable manner wherein the ignition cap 21C is attached to a top end of the piezoelectric unit provided in the casing 10C as usual, wherein the casing 10C has an operation slot 213C provided on outer wall 17C thereof to communicate with outside.
- the locking member 22C is movably attached to a rear portion of the ignition cap 21C for blocking up the ignition cap 21C from being slid sidewardly with respect to the outer wall 17C of the casing 10C of the piezoelectric lighter 1C so as to lock up the ignition cap 21C from ignition, wherein the locking member 22C comprises an operation button 221C extended to the operation slot 213C of the ignition cap 21C for operating the locking member 22C to move from a normally locking position to an unlocking position.
- the resilient element 23C which is disposed between the locking member 22C and the ignition cap 21C for applying an urging pressure against the locking member 22C so as to normally retain the locking member 22C in the locking position, wherein at the locking position, the ignition cap 21C is locked for downward and rearward movement by blocking the locking member 22C with the casing 10C so as to prevent ignition, and that in the unlocking position, the locking member 22C is moved to release the blocking up of the ignition cap 21C with the casing 10C, so that the ignition cap 21C is capable of being slid downwardly and sidewardly to ignite the piezoelectric lighter 1C.
- a guiding slot 25C is also formed on a top wall of the pusher 212C of the ignition cap 21C, wherein the operation button 221C is upwardly extended to slidably supported in the guiding slot 25C.
- the operation slot 213C is indented at one side of a top edge of the outer wall 17C, which is the rear wall according to the present third embodiment.
- a locking latch 222C is rearwardly extended from a bottom end of the locking member 22C.
- the resilient element 23C can be a spring mounted between the locking member 22C and a side wall of the ignition cap 21C within the locker cavity 215C, so as to urge the locking member 22C remaining in the locking position where the locking latch 222C is blocked by the top edge of the outer wall 17C of the casing 10C for locking the piezoelectric lighter 1C from preventing unwanted ignition.
- the user In order to ignite the piezoelectric lighter 1C, the user must unlock the locking member 22C and operate the ignition cap 21C at the same time. As shown in Fig. 13B, the user must use his or her thumb to sidewardly push the operation button 221C of the locking member 22C until the locking latch 222C of the locking member 22C is aligned with the operation slot 213C and maintain such an unlocking position. Then, the user is free to depress the pusher 212C of the ignition cap 21C downwardly and sidewardly to depress down the movable operating part of the piezoelectric unit to ignite the piezoelectric lighter 1C.
- the user may release the side pushing of the operation button 221C of the locking member 22C.
- the user may simply remain pressing against the pusher 212C of ignition cap 21C.
- the compressed piezoelectric unit 13C will rebound to its original form which pushes the ignition cap 21C back to its original locking position and the compressed resilient element 23C will rebounds the operation button 221C sidewards back its locking position.
- the piezoelectric lighter of the present invention can prevent the lighter to be unintentional ignited.
- the operation button can be extended to different locations such as on the top wall, the rear wall, and the side wall of the ignition cap for operation. Also, the operation button can be manipulated in different operating directions such as sideward, frontward and backward, and inward and outward directions.
- the operation slot can also be provided either on the ignition cap or the top edge of the outer wall of the casing.
- the safety arrangement will block the ignition cap in a rotationally movable manner in order to prevent the unintentional ignition. Furthermore, children are unable to ignite the lighter since they are unable to remain the safety arrangement in the unlocking position to ignite the lighter while the operation button can be manipulated in various operating directions.
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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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US792680 | 2001-02-22 | ||
US09/792,680 US20020115031A1 (en) | 2001-02-22 | 2001-02-22 | Safety arrangement for piezoelectric lighter |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1235030A2 true EP1235030A2 (de) | 2002-08-28 |
Family
ID=25157711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02003274A Withdrawn EP1235030A2 (de) | 2001-02-22 | 2002-02-22 | Sicherheitsvorrichtung für piezo-elektrische Feuerzeuge |
Country Status (2)
Country | Link |
---|---|
US (1) | US20020115031A1 (de) |
EP (1) | EP1235030A2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2459559Y (zh) * | 2000-11-17 | 2001-11-14 | 黄新华 | 设有锁定开关的打火机 |
US6682341B2 (en) * | 2001-06-15 | 2004-01-27 | L.A. Lighter Inc | Child resistant actuator for piezoelectric lighter |
FR2849910B1 (fr) * | 2003-01-09 | 2005-08-26 | Polyconcept Holding Sa | Briquet piezoelectrique a securite renforcee |
US7029270B2 (en) * | 2003-10-08 | 2006-04-18 | Chi Lam Wong | Igniter with safety lock |
US7147463B2 (en) * | 2003-10-15 | 2006-12-12 | Ming King Wong | Lock mechanism for increasing the saftey of a lighter |
US8653942B2 (en) | 2008-08-20 | 2014-02-18 | John Gibson Enterprises, Inc. | Portable biometric lighter |
JP6211154B1 (ja) * | 2016-08-10 | 2017-10-11 | 株式会社ドリテック | ガスライター |
US10502419B2 (en) | 2017-09-12 | 2019-12-10 | John Gibson Enterprises, Inc. | Portable biometric lighter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6135761A (en) | 1999-12-06 | 2000-10-24 | Chen; Peter | Safety arrangement for piezoelectric lighter |
-
2001
- 2001-02-22 US US09/792,680 patent/US20020115031A1/en not_active Abandoned
-
2002
- 2002-02-22 EP EP02003274A patent/EP1235030A2/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6135761A (en) | 1999-12-06 | 2000-10-24 | Chen; Peter | Safety arrangement for piezoelectric lighter |
Also Published As
Publication number | Publication date |
---|---|
US20020115031A1 (en) | 2002-08-22 |
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