EXTINGUISHING DEVICE FOR A SMOKING PRODUCT
The present invention provides a device for extinguishing a smoking product such as a cigarette or cigar. The device is inserted into a filter attached to a smoking product. The device includes a container for an extinguishing agent adapted to move from a first state wherein the extinguishing agent is not released from the container, to a second state where the extinguishing agent is released from the container.
The invention relates to devices and methods for extinguishing a smoking product such as a cigarette or cigar.
BACKGROUND OF THE INVENTIONVarious devices are known for use with smoking products, such as a cigarette or cigar, in order to extinguish the smoking product.
For example, published US Patent Application No. 2011/0132382 describes a cigarette paper coated with a substance of a low tendency to ignite. Parts of the paper are coated with a coating substance that reduces the cigarette paper's pores, and as a result, the cigarette is extinguished as the burn region reaches the coated areas of the paper.
U.S. Pat. No. 4,436,101 describes a cigarette with a filter including an internal vessel that reaches the compressed tobacco of the smoking product. The cigarette has a nozzle that ends at a cavity stopped with wax. The wax is injected under pressure created by decomposed carbonic acid and/or carbon dioxide and compression pressure exerted on the exterior walls of the filter.
U.S. Pat. No. 4,226,249 describes a cigarette extinguishing device inserted into a cigarette. A tube is attached to a liquid reservoir next to the edge of the cigarette's filter. A frangible wall separates the pool from the long tube. Manual collapsing of the cigarette at the reservoir's edge tears the wall and ejects the liquid through the tube for extinguishing the cigarette.
International Publication No. WO2015068170 describes a device for extinguishing a cigarette including a vessel shaped like a tube fitted to be inserted into a cigarette filter, and which contains a liquid for extinguishing the cigarette. The liquid may be under the pressure of compressed air within the vessel. A diaphragm located at the vessel edge tears under pressure and/or heat. As the diaphragm tears, the liquid flows from the liquid's vessel onto the burn region of the cigarette, and thus extinguishes the cigarette.
SUMMARY OF THE INVENTIONThe present invention provides a device for extinguishing a smoking product; the device is fitted to be inserted into a filter of a smoking product such as a cigarette or cigar. In one embodiment of the invention, the device includes a vessel suited to contain an extinguishing substance. The opening of the vessel is covered by a membrane that may be ruptured or torn.
Thus, in one of its aspects, the present invention provides a device for extinguishing a smoking product, the device being adapted for attachment to a smoking product, the device comprising:
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- a. a container suited to contain an extinguishing agent;
- b. a frangible membrane covering an opening in the container;
- c. one or more barbs or one or more cords attached to the membrane; wherein the device is adapted to switch from a first state to a second state, wherein
- the barbs do not pierce the membrane in the first state of the device and the barbs pierce the membrane at the second state of the device, or
- one or more of the threads do not pull the membrane in the first state of the device and the threads pull and tear the membrane at the second state of the device.
The device may be inserted into a filter or inside a smoking product.
The membrane maybe adapted to withstand pressure exerted on the membrane by the extinguishing agent.
The device may further comprise an extinguishing agent in the container.
The container may be in the form of a narrow tube.
The device may further comprise a first spring. The device may further comprise a pusher at the end of the first spring. The device may further comprise a stopper fixed inside the tube. The device may further comprise an extinguishing agent stored in the container between the membrane and the pusher.
The device may further comprise one or more barbs and at least one barb in the form of a needle. In this case, the container may be in the form of a narrow tube and the needle is located inside the tube. In this case,
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- a. the pusher may be inside the tube surrounding the needle and adapted to move along the needle inside the tube and create a fluid impervious seal between the needle and the pusher and between the pusher and an internal wall of the tube, and
- b. the stopper may be circular and fixed inside the tube between the stopper and the pusher.
The device may further comprise a second spring between a protrusion on the needle and the stopper.
The may be hollow and there may be an eyelet in the wall of the needle.
The device may be adapted to move from the first state to the second state by exerting pressure on an end of the device. The device may be adapted to move from the first state to the second state by squeezing the device.
One or more of the barbs may be attached to the container, and the device may be adapted to switch from the first state into the second state by squeezing the device from the sides, or squeezing a filter containing the device, or by squeezing a smoking product containing the device.
The barbs may be located outside the membrane. The barbs may have tips located inside the membrane when the device is in the first state. The membrane may tear prior to the burn region making contact with the barbs due to heat emitted from the burn region.
The device may further comprise (a) a protrusion on the proximal end of the needle; and (b) one or more wedges, the wedges being adapted to move towards the protrusion when the device is squeezed from the sides, and causing the needle to move toward the distal end and to pierce the membrane.
The device may further comprise two levers associated with or adhered to the needle adjacent to the proximal end of the needle, the levers being adapted to move towards one other when the device is squeezed from the sides causing the needle to pierce the membrane.
The membrane may be adapted to tear by the heat emitted from the burn region of the smoking product.
The container may be made from an elastic material
In another of its aspects, the invention provides a device for extinguishing a smoking product, the device being adapted to attach to a smoking product, the device comprising:
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- a. a container adapted to contain an extinguishing agent;
- b. a frangible membrane covering an opening in the container,
- c. a first spring, and
- d. a pusher adapted to move under the influence of the first spring and to inject the extinguishing agent out of the container.
This device may be included in a filter or in a smoking product.
The membrane may be adapted to withstand pressure exerted on the membrane by the extinguishing agent.
The device may further comprise an extinguishing agent in the container.
The may further comprise one or more barbs, each barb being moveable from a state wherein the barb does not pierce the membrane and a state wherein the barb tears the membrane.
The container may be in the form of a narrow tube. In this case, the device may further comprise a stopper fixed inside the tube. The container may be in the form of a narrow tube with at least one barb in the form of a needle. The container may be in the form of a narrow tube with the needle is located inside the tube. The pusher may be inside the tube surrounding the needle and adapted to move along the needle inside the tube creating a fluid impervious seal between the needle and the pusher and between the pusher and an internal surface of the tube. The stopper may be annular and surround the needle.
The device may further comprise an extinguishing agent stored in the tube between the membrane and the pusher.
The device may further comprise a second spring between a protrusion on the needle and the stopper.
The needle may be hollow with an eyelet on the wall of the needle.
The may be adapted to move from the first state to the second state by exerting pressure on an edge of the device. The device may be adapted to move from the first state to the second state by squeezing the device.
The barbs may be attached to the container, with the device being adapted to move from the first state to the second state by squeezing the device, or by squeezing a filter containing the device, or by squeezing the sides on a smoking product containing the device.
The barbs may be located outside the membrane. The barbs may have tips located inside the membrane when the device is in the first state.
The membrane may tear prior to the burn region making contact with the barbs due to heat emitted from the burn region.
The device may further comprise: (a) a protrusion on the proximal end of the needle; and (b) one or more wedges, the wedges being adapted to move towards the protrusion when the device is squeezed from the sides, and cause the needle to move toward the distal end, pierce the membrane.
The device may further comprise two levers adjacent to or adhered to the needle at the proximal end of the needle, the levers being adapted to move towards one other when the device is squeezed causing the needle to pierce the membrane.
The membrane may be adapted to tear by heat emitted from the burn region of the smoking product.
The container may comprise rigid material. The container may comprise elastic material.
In yet another of its aspects, the present invention provides a device for extinguishing a smoking product, the device being adapted for attachment to a smoking item, the device comprising a container formed from an elastic material and adapted to contain an extinguishing agent.
The device may be inserted inside a filter or inside a smoking product.
The device may further comprise an extinguishing agent in a container.
The extinguishing agent may be released from the container when the container is ruptured. The container may be inserted into a sleeve.
The container may terminate in a protrusion.
The device a may further comprise one or more barbs.
The container may be filled through a hole in the container and the hole sealed after filling.
The container may be adapted to rupture by squeezing the device, or by squeezing a filter containing the device, or by squeezing a smoking product containing the device.
The device may further comprise one or more barbs, wherein the squeezing causes the device to move from the first state wherein the barbs do not pierce the container to the second state wherein the barbs pierce the container.
The squeezing may cause the movement of the barbs and the piercing of the container. The squeezing may cause the expansion of the container and piercing the container by the barbs.
The container may be ruptured by heat emitted from the burn region.
In still another of it aspects, the present invention provides a device for extinguishing a smoking product, the device being adapted for attachment to a smoking product, the device comprising:
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- a. a container having a first region adapted to contain an extinguishing agent and a second region containing a gas;
- b. a frangible membrane covering an opening in the container;
- c. a pusher adapted to move inside the container, the pusher separating the region adapted to contain the extinguishing agent and the region containing the gas;
- wherein the device is adapted to move from a first state wherein the membrane is intact and a second state wherein the membrane is broken;
- and wherein the gas within the second region is compressed upon filling the first region with the extinguishing agent.
The device may be inserted into a filter or inside a smoking product.
The membrane may be adapted to withstand pressure exerted on the membrane by the extinguishing agent.
The device a may further comprise an extinguishing agent in the container.
The device may further comprise one or more barbs, wherein when the device is in the first state the barbs do not pierce the membrane, and when the device is in the second state as at least one barb pierces the membrane.
The container may be in the form of a narrow tube.
The device may be adapted to move from the first state to the second state upon exerting pressure on an edge of the device edge or by squeezing the second region of the container.
The device may further comprise one or more cords attached to the membrane, wherein exerting pressure on the device pulls the cords and tears the membrane.
The membrane may ruptured by heat emitted from a burn region.
The gas may be air.
The invention also provides a filter for a smoking item comprising a device of the invention.
The invention also provides a system including a filter for a smoking item comprising a device of the invention and a smoking product attached to the filter. The smoking product may include channel along the smoking product. The channel wall may be made of tobacco, compressed tobacco or paper or my other suitable material.
In order to understand the invention and learn as to the possibility of executing such, embodiments shall now be described, using by means of non-restricting drawings, referring to the accompanying drawings, as:
FIGS. and 1 and 2 show a filter 2 for a smoking product such as a cigarette or a cigar, adapted for extinguishing a burning smoking product to which it is attached in accordance with one embodiment of the invention. The filter 2 is shown in
The filter 2 has a cylindrical shell that be made of paper, for example, having a proximal end 6 and a distal end 8. The cylindrical shell 4 surrounds a space filled with filter material 10. The filter material may be, for example, any material used in filters of smoking products, such as cellulose, acetate, paper, active carbon, various resins or asbestos.
A thin tube 12 is located within the filter 10. The tube 12 ends at the proximal end a small distance from the proximal surface of the filter material 10, so that the proximal end of tube 12 cannot be seen outside the filter 2. The tube 12 may have, for example, a circular cross section with a diameter of less than 3 mm in order to avoid interfering with smoking of the smoking product it is attached. The tube may be of any suitable substance such as nylon, plastic, etc. The thickness of the tube's wall may be, for example, 0.5 mm. The tube 12 ends at its distal end with a nozzle 9. Stopper 14 having a circular shape is inserted into tube 12, thus separating the tube 12 into a proximal portion 16 and distal portion 18. A needle 20 extends inside the tube 12, through a central hole 22 in stopper 14. At the proximal end of the needle 20, a knob 24 is located, and the distal end of needle 20 terminates in a sharp tip 26. The needle 20 may be hollow, and in which case, an eyelet 27 may be located in the wall of the needle 20, close to the distal end of tube 12. The needle 20 may be of any cross sectional shape, and the sharp tip 26 may be of any shape. One or more protrusions 17 on the external surface of needle 20 are unable to pass through an annular cover 19 at the proximal end of tube 12, thus restricting the movement of needle 20 toward the proximal end of filter 2.
A helical spring 28 surrounds the needle 20 at the distal portion 18 of the tube 12. The distal end of the spring 28 is in close proximity to the pusher 30. The pusher 30 is shown in greater detail in
The distal segment 18 of the tube 12 serves as a reservoir of extinguishing agent. The extinguishing agent may be any extinguishing agent such as water, potassium bicarbonate or sodium bicarbonate. Prior to filling the distal portion 18 of tube 12 with the extinguishing agent (
The extinguishing agent 38 (indicated by hatching in the drawings) is stored in the distal portion 18 of the tube 12 between the pusher 30 and the distal end of the tube 12. After filling the distal portion 18 with the extinguishing agent, a thin membrane 40 is attached to the nozzle 9 in order to prevent release of the extinguishing agent through nozzle 9. The membrane 40 may be of any material such as nylon, wax, plastic, etc. It is preferable that the membrane material be of a non-toxic substance. Upon completion of filling, the distal portion 18 of tube the 12 should contain a sufficient amount of the extinguishing agent for extinguishing the burn region of the smoking product, depending on the size of the smoking product and the type of extinguishing agent. For example, for an average cigarette, the distal portion 18 of the tube 12 may contain approximately 0.05-0.2 ml of extinguishing agent. As a specific example, the distal portion 18 of the tube 12 may contain approximately 0.15 ml.
The filter 2 is attached to smoking product 42 such as a cigarette or a cigar, as shown in
This causes the needle 20 to move towards the distal end within the tube 12, until the distal end of needle 20 reaches the membrane 40 and pierces the membrane 40. Piercing of the membrane 40 allows the compressed spring 28 to expand. Expansion of the spring 28 pushes the pusher 30 towards the distal end along the needle 20, and thus injects the extinguishing agent through the nozzle 9 into the channel 44 of the smoking product 42 (
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Piercing the balloon material at the area of protrusion 106 causes the rupture of the balloon material. Upon the rupture of the balloon material, the balloon 102 contracts and the extinguishing agent is injected into the channel 44 of the smoking product 42 (
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The balloon 102 in an inflated state ends in a protrusion 106 at the distal end of the balloon 102, which protrudes through a slot 108 at the distal end of sleeve 104. It is preferable that the material of the balloon in the area of protrusion 106 be weaker than the balloon material in other parts of the balloon. Thus, for example, the balloon material in the area of the protrusion 106 may be thinner than the balloon material in other parts of the balloon, or the balloon material at the area of protrusion 106 may have scratches. In contrast to the filter 100, the filter 120 does not include any barbs for piercing the balloon 102, but one or more barbs may be included in order to facilitate rupture of the balloon 102, as described below. The filter 100 is attached to smoking product 42 such as a cigarette or a cigar, as shown in
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The device also includes a pair of levers 32 which of which is attached to the membrane 40 by a thin thread or cord 134 that are configured to cause the rupture of the protrusion 106, as shall be explained below. Each of handles 110 ends with a barb 112, adjacent to the protrusion 106.
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The device includes a pair of levers 152, each of which is attached to the balloon material at the area of the protrusion 106 by a thin thread or cord 154, which is configured to cause rupture of protrusion 106, as explained below. The filter 150 is attached to a smoking product 42 such as a cigarette or a cigar, as shown in
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Upon rupture of the balloon material, balloon 102 contracts and the extinguishing agent is injected into the channel 44 of the smoking product 42 (
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Claims
1. A device for extinguishing a smoking item, the device being adapted for insertion in a smoking item, the device comprising:
- a. a container adapted to contain an extinguishing agent;
- b. a frangible membrane covering an opening in the container;
- c. one or more barbs or one or more cords attached to the membrane; wherein the device is adapted to move from a first state to a second state, wherein the barbs do not pierce the membrane in the first state of the device and the barbs pierce the membrane in the second state of the device, or one or more of the threads does not pull on the membrane in the first state of the device and the threads pull and tear the membrane at the second state of the device.
2. The device according to claim 1 inside a filter or inside a smoking item.
3. The device according to claim 1 wherein the membrane is adapted to withstand pressure exerted on the membrane by the extinguishing agent.
4. The device according to claim 1 further comprising an extinguishing agent in the container.
5. The device according to claim 1 wherein the container is in the form of a narrow tube.
6. The device according to claim 1 further comprising a first spring.
7. The device according to claim 6 further comprising a pusher at the end of the first spring.
8. The device according to claim 5 further comprising a stopper fixed inside the tube.
9. The device according to claim 8 further comprising an extinguishing agent stored in the container between the membrane and the pusher.
10. The device according to claim 1 further comprising one or more barbs and at least one barb is in the form of a needle.
11. The device according to claim 10 wherein the container is in the form of a narrow tube and the needle is located inside the tube.
12. The device according to claim 11 wherein:
- a. the pusher inside the tube surrounds the needle and is adapted to move along the needle inside the tube and create a fluid impervious seal between the needle and the pusher and between the pusher and an internal wall of the tube, and
- b. the stopper is circular and fixed inside the tube between the stopper and the pusher.
13. The device according to claim 6 further comprising a second spring between a protrusion on the needle and the stopper.
14. The device according to claim 10 wherein the needle is hollow and there is an eyelet in the wall of the needle.
15. The device according to claim 1 wherein the device is adapted to move from the first state to the second state by exerting pressure on an end of the device.
16. The device according to claim 1 wherein the device is adapted to move from the first state to the second state by squeezing the sides of the device.
17. The device according to claim 1 wherein one or more of the barbs is attached to the container, and the device is adapted to switch from the first state into the second state by squeezing the device from the sides, or squeezing a filter containing the device, or by squeezing a smoking item containing the device.
18. The device according to claim 17 wherein the barbs are located outside the membrane.
19. The device according to claim 17 wherein the barbs have tips located inside the membrane when the device is in the first state.
20. The device according to claim 17 wherein the membrane tears prior to the burn region making contact with the barbs due to heat emitted from the burn region.
21. The device according to claim 10 further comprising: (a) a protrusion on the proximal end of the needle; and (b) one or more wedges, the wedges being adapted to move towards the protrusion when the device is squeezed from the sides, causing the needle to move toward the distal end and pierce the membrane.
22. The device according to claim 10 further comprising one or more levers adjacent to or adhered to the needle adjacent to the proximal end of the needle, the levers being adapted to move towards each other when the device is squeezed from the sides causing the needle to pierce the membrane.
23. The device according to claim 1 wherein the membrane is adapted to tear by heat emitted from the burn region of the smoking item.
24. A filter comprising the device according to claim 1.
25. A system including a filter according to claim 24 and a smoking item attached to the filter.
26. The system according to claim 25 wherein the smoking item includes a channel along the smoking item.
27. The system according to claim 26 wherein the channel has a wall made of tobacco or compressed tobacco, or paper.
28. The device according to claim 1 wherein the container is made from a rigid material.
29. The device according to claim 1 wherein the container is made from an elastic material
30. A device for extinguishing a smoking item, the device being adapted for attachment to a smoking item, the device comprising:
- a. a container adapted to contain an extinguishing agent;
- b. a frangible membrane covering an opening in the container,
- c. a first spring, and
- d. a pusher adapted to move under the influence of the first spring and to inject the extinguishing agent out of the container.
31. The device according to claim 30 included in a filter or in a smoking item.
32. The device according to claim 30 wherein the membrane is adapted to withstand pressure exerted on the membrane by the extinguishing agent.
33. The device according to claim 30 further comprising an extinguishing agent in the container.
34. The device according to claim 30 further comprising one or more barbs, the device is adapted to be moved from a first state wherein the barbs do not pierce the membrane and a second state wherein at least one barb tears the membrane.
35. The device according to claim 30 wherein the container is in the form of a narrow tube.
36. The device according to claim 35 further comprising a stopper fixed inside the tube.
37. The device according to claim 34 wherein the container is in the form of a narrow tube and at least one barb is in the form of a needle.
38. The device according to claim 37 wherein the container is in the form of a narrow tube and the needle is located inside the tube.
39. The device according to claim 39 wherein the pusher is inside the tube surrounding the needle and is adapted to move along the needle inside the tube creating a fluid impervious seal between the needle and the pusher and between the pusher and an internal surface of the tube.
40. The device according to claim 39 wherein the stopper is annular and surrounds the needle.
41. The device according to claim 38 further comprising an extinguishing agent stored in the tube between the membrane and the pusher.
42. The device according to claim 36 further comprising a second spring between a protrusion on the needle and the stopper.
43. The device according to claim 28 wherein the needle is hollow and there is an eyelet on the wall of the needle.
44. The device according to claim 34 wherein the device is adapted to move from the first state to the second state by exerting pressure on an edge of the device.
45. The device according to claim 34 wherein the device is adapted to move from the first state to the second state by squeezing the device.
46. The device according to claim 34 wherein one or more of the barbs is attached to the container, and the device is adapted to move from the first state to the second state by squeezing the device, or by squeezing a filter containing the device, or by squeezing the sides on a smoking item containing the device.
47. The device according to claim 46 wherein the barbs are located outside the membrane.
48. The device according to claim 46 wherein the barbs have tips located inside the membrane when the device is in the first state.
49. The device according to claim 30 wherein the membrane tears prior to the burn region making contact with the barbs due to heat emitted from the burn region.
50. The device according to claim 37 further comprising: (a) a protrusion on the proximal end of the needle; and (b) one or more wedges, the wedges being adapted to move towards the protrusion when the device is squeezed from the sides, causing the needle to move toward the distal end and pierce the membrane.
51. The device according to claim 37 further comprising one or more levers adjacent to or adhered to the needle at the proximal end of the needle, the levers being adapted to move towards one other when sides of the device is squeezed causing the needle to pierce the membrane.
52. The device according to claim 29 wherein the membrane is adapted to tear by heat emitted from the burn region of the smoking item.
53. A filter for a smoking item comprising the device according to claim 30.
54. A system including a filter according to claim 53 and a smoking item attached to the filter.
55. The system according to claim 53 wherein the smoking item includes a channel along the smoking item.
56. The system according to claim 55 wherein the channel has a wall is made of tobacco or compressed tobacco or paper.
57. The device according to claim 30 wherein the container comprises rigid material.
58. The device according to claim 30 wherein the container comprises elastic material.
59. A device for extinguishing a smoking item, the device being adapted for insertion into a smoking item, the device comprising a container formed from an elastic material and adapted to contain an extinguishing agent.
60. The device according to claim 59 inside a filter or inside a smoking item.
61. The device according to claim 59 further comprising an extinguishing agent in the container.
62. The device according to claim 59 wherein the extinguishing agent is released from the container when the container is ruptured.
63. The device according to claim 59 wherein the container is inserted into a sleeve.
64. The device according to claim 59 wherein the container terminates in a protrusion.
65. The device according to claim 59 further comprising one or more barbs or one or more levers.
66. The device according to claim 59 wherein the container is filled through a hole in the container and the hole is sealed after filling.
67. The device according to claim 62 wherein the container is adapted to rupture by squeezing the device, or by squeezing a filter containing the device, or by squeezing a smoking item containing the device.
68. The device according to claim 67 further comprising one or more barbs, wherein squeezing causes the device to move from a first state wherein the barbs do not pierce the container and a second state wherein at least one barb pierces the container.
69. The device according to claim 68 wherein squeezing causes the movement of the barbs and piercing of the container.
70. The device according to claim 68 wherein squeezing causes expansion of the container and piercing the container by the barbs.
71. The device according to claim 59 wherein the container is ruptured by heat emitted from the burn region.
72. A system including a filter according to claim 60 and a smoking item attached to the filter.
73. The system according to claim 72 wherein the smoking item further comprises a channel along the smoking item.
74. The system according to claim 73 wherein the channel has a wall made of tobacco, compressed tobacco, or paper.
75. A device for extinguishing a smoking item, the device being adapted for insertion into a smoking item, the device comprising:
- a. a container having a first region adapted to contain an extinguishing agent and a second region containing a gas;
- b. a frangible membrane covering an opening in the container;
- c. a pusher adapted to move inside the container, the pusher separating the region adapted to contain the extinguishing agent and the region containing the gas;
- wherein the device is adapted to move from a first state wherein the membrane is intact and a second state wherein the membrane is broken;
- and wherein the gas within the second region is compressed upon filling the first region with the extinguishing agent.
76. The device according to claim 75 inside a filter or inside a smoking item.
77. The device according to claim 75 wherein the membrane is adapted to withstand pressure exerted on the membrane by the extinguishing agent.
78. The device according to claim 75 further comprising an extinguishing agent in the container.
79. The device according to claim 75 further comprising one or more barbs, wherein when the device is in the first state the barbs do not pierce the membrane, and when the device is in the second state as at least one barb pierces the membrane.
80. The device according to claim 75 wherein the container is in the form of a narrow tube.
81. The device according to claim 75 wherein the device is adapted to move from the first state to the second state upon exerting pressure on an edge of the device or by squeezing the second region of the container.
82. The device according to claim 75 further comprising one or more cords attached to the membrane, wherein exerting pressure on the device pulls the cords and tears the membrane.
83. The device according to claim 75 wherein the membrane is ruptured by heat emitted from a burn region.
84. The device according to claim 75 wherein the gas is air.
85. A filter for a smoking item comprising the device according to claim 75.
86. A system including a filter according to claim 85 and a smoking item attached to the filter.
87. The system according to claim 85 wherein the smoking item includes a channel along the smoking item.
88. The system according to claim 87 wherein the channel's wall is made of tobacco, compressed tobacco or paper.
89. A device according to claim 7 wherein the pusher does not have a hole.
90. A device according to claim 8 wherein the stopper does not have a hole.
91. A device according to claim 30 wherein the pusher does not have a hole.
92. A device according to claim 75 wherein the pusher does not have a hole.
93. A device according to claim 30 wherein the stopper does not have a hole.
Type: Application
Filed: Apr 30, 2017
Publication Date: Jan 30, 2020
Inventor: Zvi DERI (Holon)
Application Number: 16/484,589