EP0815903A1 - High-pressure gas jetting device - Google Patents

High-pressure gas jetting device Download PDF

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Publication number
EP0815903A1
EP0815903A1 EP97900102A EP97900102A EP0815903A1 EP 0815903 A1 EP0815903 A1 EP 0815903A1 EP 97900102 A EP97900102 A EP 97900102A EP 97900102 A EP97900102 A EP 97900102A EP 0815903 A1 EP0815903 A1 EP 0815903A1
Authority
EP
European Patent Office
Prior art keywords
high pressure
pressure gas
gas
jetting device
cylindrical
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Withdrawn
Application number
EP97900102A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0815903A4 (en
Inventor
Hidetada Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kondo Corp
Original Assignee
Kondo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kondo Corp filed Critical Kondo Corp
Publication of EP0815903A1 publication Critical patent/EP0815903A1/en
Publication of EP0815903A4 publication Critical patent/EP0815903A4/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container

Definitions

  • the present invention relates to a high pressure gas injection device, for example. More specifically, the invention relates to a high pressure gas jetting device suitable for employing in a fire-extinguisher to be loaded on an automotive vehicle for use.
  • known fire-extinguishers are typically filled with dried powder of baking soda in a container and mounted carbon dioxide bomb. Upon use, by gripping a handle with removing a stopper pin, a seal plate of the bomb is ruptured to jet the baking soda powder through a nozzle by the pressure of the carbon dioxide.
  • Such fire-extinguisher has a size portable by one hand and incorporates a gas tank preliminarily filled with an extinguishing gas to tap the bottom portion of the container on a relatively hard portion to cause upward movement of a needle form member within the gas tank to pierce a seal plate of the gas tank to jet the extinguishing gas from the tip end head portion of the container.
  • a force for tapping the container should be variable per individual and hardness of the portion to be tapped is not uniform. Furthermore, it cannot be expected upon occurrence of fire to coolly select the portion having an appropriate hardness for tapping and to tap such portion with an appropriate force. Accordingly, it is difficult to have a design to assure jetting of extinguishing gas upon tapping with the container at any condition. In this connection, some user should repeat tapping operation for a plurality of times, and in some case, the extinguishing gas cannot be jetted.
  • the present invention has been worked out in view of the problems set forth above. Therefore, it is an object of the present invention to provide a high pressure gas jetting device which can jet a gas in a condition where a jetting direction is oriented toward a target without requiring tapping of the container, will not cause influence on a jetting operation and can expect gas jetting timing in certain extent.
  • the present invention as defined in claim 1, comprises a first cylindrical member disposed a gas tank sealingly enclosing a high pressure gas, a second cylindrical member threadingly engaged with the first cylindrical member and capable of rotation relative with the former, and a needle form member provided within the second cylindrical member and moving in an axial direction by relative rotation of the first and second cylindrical members to pierce a sealing plate of the gas tank.
  • the high pressure gas within the gas tank is jetted from the tip end hole of the second cylindrical member through a through aperture formed in the axial direction of the needle form member.
  • the high pressure gas is non-inflammable gas of carbon dioxide, nitrogen, inert gas and the like.
  • an angle of relative rotation of the first and second cylindrical members causes the needle form member piercing the sealing plate of the gas tank within 180°.
  • At least one groove parallel to a rotation axis of relative rotation is formed on the outer surface of the first and second cylindrical members, and a stopper releasably engaging over both grooves in the condition where respective grooves are aligned and thus preventing relative rotation of both cylindrical members.
  • antistatic process is provided for the first and second cylindrical members.
  • the needle form member has a truncated cone shape at the tip end.
  • the present invention basically comprises a first cylindrical member disposed a gas tank sealingly enclosing a high pressure gas, a second cylindrical member threadingly engaged with the first cylindrical member and capable of rotation relative with the former, and a needle form member provided within the second cylindrical member and moving in an axial direction by relative rotation of the first and second cylindrical members to pierce a sealing plate of the gas tank, and can be constructed in various forms.
  • the needle form member pierces the seal plate of the gas tank by relative rotation of the first and second cylindrical members.
  • the high pressure gas within the gas tank is jetted from the tip end hole of the second cylindrical member through a through aperture formed in the axial direction of the needle form member. According to this, since the high pressure gas is jetted from the tip end hole of the second cylindrical hole through the through aperture of the needle member by relatively rotating both cylindrical members in the condition directing the tip end hole of the second cylindrical member toward the target, the jetting gas can be certainly directed to the target.
  • the first and second cylindrical members can be arbitrarily selected the cross-sectional shapes, such as polygon shape, rhomboid shape, star shape and so forth in addition to circular, triangular, quadrangular shapes except for the portion where the thread is formed, and can be produced from various materials selected among resin, such as plastic, reinforced plastic, metal, such as aluminum, alloy and so forth, wood or so forth.
  • the tip end hole to be formed in the second cylindrical member is single or a plural. When a plurality of tip end holes are formed, one of those is arranged at the center portion and remaining hole are arranged thereabout.
  • a toy pistol form may be applied and a power transmission mechanism for rotating the other in response to actuation of a trigger with fixing either one of the first and second cylindrical members.
  • the high pressure gas may be non-inflammable gas of carbon dioxide, nitrogen, inert gas and the like as used for fire-extinguisher.
  • oxygen may be used. Since the high pressure gas is low temperature, remarkable extinguishing effect can be achieved together with the extinguishing action and cooling effect of the non-inflammable gas when the present invention is used as the fire-extinguisher.
  • non-inflammable gas when used as the high pressure gas, it may be applicable as a washing device for washing dust or so forth depositing on various devices by utilizing the jetting pressure.
  • insect killer, agricultural chemicals or so forth is admixed with the high pressure gas, it can be used for spraying these insect killer, agricultural chemicals and so forth.
  • an angle of relative rotation of the first and second cylindrical members may cause the needle form member piercing the sealing plate of the gas tank within 180° so that, after initially gripping both cylindrical members, relative rotation becomes possible to jet the gas without changing grip, a period required for extinguishing operation can be shortened.
  • At least one groove parallel to a rotation axis of relative rotation is formed on the outer surface of the first and second cylindrical members, and a stopper releasably engaging over both grooves in the condition where respective grooves are aligned and thus preventing relative rotation of both cylindrical members.
  • the first and second cylindrical members is preferably formed with the material difficult to be charged, with plating the inner peripheral surface of the cylindrical member, or with providing a conductive body on the inner peripheral surface to provide antistatic process. In this case, releasing of the cylindrical member held by the user due to occurrence of static electricity can be prevented.
  • the needle form member has a truncated cone shape at the tip end.
  • the needle form member can certainly pierce the seal plate of the gas tank by relative rotation of the first and second cylindrical members. More preferably, stepped portion extending in circumferential direction is formed on a tapered surface/
  • the configuration of the tip end of the needle form member is not limited to this, but can be the tip end configuration of an injection syringe, threaded one, curved one and other arbitrary shape.
  • cross-sectional shape of the needle form member may be arbitrarily selected among polygon shape, rhomboid shape, start shape and so forth in addition to circular, triangular, quadrangular.
  • material may be arbitrarily selected among various materials, such as stainless, steel, (preferably provided plating process with No. 3 chromium), ceramic and the like.
  • the present invention is applicable not only for the case where the device is actuated manually but for the case where the device is actuated automatically. Namely, by fixing one end of a biasing means, such as coil spring on the inner portion or outer portion of either one of the first and second cylindrical member and fixing the other end on the other member via a stepper which is molten at a predetermined temperature, it becomes possible to cause relative rotation of the first and second cylindrical members by the biasing means with melting down the stopper upon occurrence of fire.
  • a biasing means such as coil spring
  • Such automatic high pressure gas jetting device may be installed in high-vision, in the vicinity of gasoline tank, ceiling portion of a public telephone box, ceiling of cash-dispenser box as well as a guest room in the hotel, general home.
  • non-inflammable gas as the high pressure gas
  • such automatic has jetting device may be formed into a fire-extinguisher which is thrown into the fire to be actuated by the heat of the fire.
  • Figs. 1(a), (b) and 2 show a form under normal condition of an embodiment, in which a high pressure gas jetting device according to the present invention is applied for a compact fire-extinguisher.
  • the extinguisher is generally constructed with a hollow cylindrical container main body 2 (first cylindrical member), in which a longitudinally elongated bottle form gas tank 1 (e.g. made of Nippon Tansan Gas Kabushiki Kaisha) sealingly containing carbon dioxide as a high pressure gas, is received, and a hollow cylindrical cap 3 (second cylindrical member) rotatable relatively with threading engagement with a front portion (upper side in the drawing) of the container body 2.
  • the gas tank 1 is projectingly formed with a mouth portion 4. An opening end of the mouth portion 4 is sealed with a sealing plate (not shown).
  • a threaded groove 5 is formed on the outer peripheral surface of the mouth portion 4.
  • the container body 2 and the cap 3 are formed of plastic which is difficult to be charged, and are provided substantially the same diametric dimensions and substantially the same colors.
  • the tip end portion of the container body 2 is formed with a thick inner cylinder portion 6 projecting in the axial direction, at the center portion.
  • an internal thread portion 7 threadingly engageable with the mouth portion 4 of the gas tank 1 is formed.
  • the container body 2 is divided into two (2a, 2b).
  • the mouth 4 of the gas tank 1 in the condition divided into two is threadingly engaged with the inner thread portion 7 to fix the gas tank 1 on the container body 2.
  • a bond or adhesive is not disposed. While fixing between the container main body 2 and the gas tank 1 is performed by threading engagement by the mouth portion 4, in this embodiment, it is also possible to form projections for fixing on the gas tank 1 and to form means for engaging with the projections in the container body 2.
  • the threaded groove 8 is engaged with a threaded groove 9 formed on the inner periphery of the cap 3.
  • engagement of the container body 2 and the cap 3 is established so that substantially uniform gap is defined between the inner end surface of the cap 3 and the end surface of the inner cylindrical portion 6 and between the end edge portion of the cap and the step portion of the container body 2 to permit further tightening.
  • a tip end hole 10 extending therethrough is formed.
  • a recessed portion 3a buried with a needle piece 11 is formed on the back surface side of the tip end hole 10.
  • the needle piece 11 is constituted of a cylindrical main body 11a to be fitted in the recessed portion 3a, a needle 11c (needle member) projecting backwardly from the main body 11a, and a nozzle 11b projecting frontwardly.
  • a through aperture 11d is formed in the axial direction in the needle 11c, the main body 11a and the nozzle 11b.
  • These tip end hole 10 and the needle piece 11 are arranged coaxially.
  • the needle 11c is arranged in opposition with the seal plate of the gas tank 1 (in the shown embodiment, a distance between the tip end of the needle 11c and the seal plate of the gas tank 1 are set to be substantially 0).
  • the needle 11c is moved in the axial direction to contact the tip end thereof to the seal plate of the gas tank 1. Pitch of the threaded grooves 8 and 9 are set to cause fracture of the seal plate as relatively rotated for 35°.
  • grooves 12 and 13 parallel to axial direction of these are formed with a given interval in the circumferential direction.
  • the grooves 12 and 13 are formed with the same pitch.
  • a stopper (not shown) is releasably engaged over these grooves in the condition where both grooves 12 and 13 are aligned with each other.
  • a ring is integrally attached to the stopper.
  • the compact fire-extinguisher is produced as follow.
  • the gas tank 1 is introduced from the front side opening, and the mouth portion 4 is fixed by threading engagement with the inner threaded portion 7 of the inner cylindrical portion 6 of the container body 2.
  • the container body 2 divided into two are integrally assembled.
  • the cap 3 buried with the needle piece 11 is threadingly engaged with the container body 2. The threading engagement is established for permitting further tightening as set forth above. With such simple operation, the compact fire-extinguisher can be completed.
  • the compact fire-extinguisher completed is loaded in the automotive vehicle, for example. Since the stopper is provided between the container body 2 and the cap 3, unexpected relative rotation in the normal condition can be successfully prevented. On the other hand, since grooves 12 and 13 are formed on both members 2 and 3 are formed, it may provide good appearance.
  • the container body 2 and the cap 3 are gripped by respective hands. Since both members 2 and 3 are formed of plastic which is difficult to be charged, it may not be caused to generate static electricity to be released from the hand. In this condition, only by directing the tip end hole 10 of the cap toward the engine and causing relative rotation of the container body 2 and the cap 3, the needle 11c pierces the seal plate of the gas tank to jet the gas from the tip end hole 10 of the cap 3 through the through aperture of the needle piece 11 (the needle 11c, the main body 11a and the nozzle 11b). Therefore, the jetted gas is certainly directed to the target.
  • Fig. 3 shows another embodiment.
  • the cap 3 is significantly extended rearwardly to slidingly contact the outer peripheral surface of the container body 2 onto its inner peripheral surface. Even in this embodiment, similar effect to the former embodiment can be obtained.
  • Fig. 4 shows a further embodiment.
  • shape of the cap 3 is rounded at the tip end, which is applicable either for the embodiment of Figs. 1 and 2 or the embodiment of Fig. 3.
  • the needle member may pierce the seal plate of the gas tank to certainly jet the jetting gas.
  • the jetting gas can be certainly directed to the target.
  • the fire-extinguisher According to the invention of claim 3, it can be used as the fire-extinguisher. Since the high pressure gas is low temperature, remarkable extinguishing effect can be achieved together with the extinguishing action and cooling effect of the non-inflammable gas.
  • stable gripping feeding can be obtained and slipping upon relative rotation can be suppressed. Also, superior appearance in design can be attained. Furthermore, by the stopper, unexpected relative rotation in the normal condition can be presented.
  • the needle member can certainly pierce the seal plate of the gas tank by relative rotation of the first and second cylindrical members.
EP97900102A 1995-12-28 1997-01-06 HIGH PRESSURE GAS JET PRODUCTION DEVICE Withdrawn EP0815903A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP34407495A JPH09182809A (ja) 1995-12-28 1995-12-28 高圧ガス噴射装置
JP344074/95 1995-12-28
PCT/JP1997/000003 WO1997024161A1 (fr) 1995-12-28 1997-01-06 Dispositif de production de jet de gaz a haute pression

Publications (2)

Publication Number Publication Date
EP0815903A1 true EP0815903A1 (en) 1998-01-07
EP0815903A4 EP0815903A4 (en) 2000-12-06

Family

ID=18366462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97900102A Withdrawn EP0815903A4 (en) 1995-12-28 1997-01-06 HIGH PRESSURE GAS JET PRODUCTION DEVICE

Country Status (3)

Country Link
EP (1) EP0815903A4 (is)
JP (1) JPH09182809A (is)
WO (1) WO1997024161A1 (is)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002026328A1 (en) * 2000-09-27 2002-04-04 Caminno Consulting Oy Ab Fire extinguisher with disposable gas container

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7559925B2 (en) 2006-09-15 2009-07-14 Acclarent Inc. Methods and devices for facilitating visualization in a surgical environment
US8932276B1 (en) 2004-04-21 2015-01-13 Acclarent, Inc. Shapeable guide catheters and related methods
US20060063973A1 (en) 2004-04-21 2006-03-23 Acclarent, Inc. Methods and apparatus for treating disorders of the ear, nose and throat
US7654997B2 (en) 2004-04-21 2010-02-02 Acclarent, Inc. Devices, systems and methods for diagnosing and treating sinusitus and other disorders of the ears, nose and/or throat
US20070167682A1 (en) 2004-04-21 2007-07-19 Acclarent, Inc. Endoscopic methods and devices for transnasal procedures
US9399121B2 (en) 2004-04-21 2016-07-26 Acclarent, Inc. Systems and methods for transnasal dilation of passageways in the ear, nose or throat
US7361168B2 (en) 2004-04-21 2008-04-22 Acclarent, Inc. Implantable device and methods for delivering drugs and other substances to treat sinusitis and other disorders
US8951225B2 (en) 2005-06-10 2015-02-10 Acclarent, Inc. Catheters with non-removable guide members useable for treatment of sinusitis
WO2008124787A2 (en) 2007-04-09 2008-10-16 Acclarent, Inc. Ethmoidotomy system and implantable spacer devices having therapeutic substance delivery capability for treatment of paranasal sinusitis
US9155492B2 (en) 2010-09-24 2015-10-13 Acclarent, Inc. Sinus illumination lightwire device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684053A1 (en) * 1994-05-24 1995-11-29 Katsutoshi Matsumoto Fire extinguisher
US5704428A (en) * 1996-10-07 1998-01-06 Asano; Tokio Disaster preventive apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5085198A (is) * 1973-11-30 1975-07-09
JPH08252338A (ja) * 1995-03-16 1996-10-01 Nirai Kk 消火ガス噴射器具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684053A1 (en) * 1994-05-24 1995-11-29 Katsutoshi Matsumoto Fire extinguisher
US5704428A (en) * 1996-10-07 1998-01-06 Asano; Tokio Disaster preventive apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9724161A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002026328A1 (en) * 2000-09-27 2002-04-04 Caminno Consulting Oy Ab Fire extinguisher with disposable gas container

Also Published As

Publication number Publication date
EP0815903A4 (en) 2000-12-06
JPH09182809A (ja) 1997-07-15
WO1997024161A1 (fr) 1997-07-10

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