JPH06117635A - Flow rate and pressure control device for liquefied fuel - Google Patents
Flow rate and pressure control device for liquefied fuelInfo
- Publication number
- JPH06117635A JPH06117635A JP3042898A JP4289891A JPH06117635A JP H06117635 A JPH06117635 A JP H06117635A JP 3042898 A JP3042898 A JP 3042898A JP 4289891 A JP4289891 A JP 4289891A JP H06117635 A JPH06117635 A JP H06117635A
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- wire
- fuel
- pressure
- gas
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 26
- 239000002737 fuel gas Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 4
- GXCLVBGFBYZDAG-UHFFFAOYSA-N N-[2-(1H-indol-3-yl)ethyl]-N-methylprop-2-en-1-amine Chemical compound CN(CCC1=CNC2=C1C=CC=C2)CC=C GXCLVBGFBYZDAG-UHFFFAOYSA-N 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Lighters Containing Fuel (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】 この発明は、液化ガスライタ
ー、ガスコンロ、ガストーチ等の携帯用燃焼器具のため
の液化燃料の流量及び圧力を調整する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting the flow rate and pressure of liquefied fuel for portable combustion appliances such as liquefied gas lighters, gas stoves, gas torches and the like.
【０００２】[0002]
【従来の技術】 従来、液化ガスライター、ガスコン
ロ、ガストーチ等の携帯自在な燃焼器具は、その本体内
部に燃料貯蔵タンクを有するか或は、ガスボンベを着脱
自在に外装し、タンク若しくはガスボンベからなる燃料
貯蔵スペースに貯蔵された液化燃料を流量・圧力調整手
段を介して取り出し、バーナー手段で燃焼させるように
した構造を有している。2. Description of the Related Art Conventionally, portable combustors such as liquefied gas lighters, gas stoves, and gas torches have a fuel storage tank inside their main body, or a gas cylinder is detachably mounted on a fuel tank and is composed of a tank or a gas cylinder. It has a structure in which the liquefied fuel stored in the storage space is taken out through the flow rate / pressure adjusting means and burned by the burner means.
【０００３】例えば、携帯用ガスライターの最も一般的
な構造では、ガスライターの本体内部に燃料貯蔵タンク
を画成し、燃料タンクに接続したバーナー弁の流量調整
部にモルトプレーンと称せられる軟弾性の多孔質性物質
を配在し、外部からモルトプレーンを圧縮して、モルト
プレーンを通過する燃料ガスの流量と圧力を調整した
後、バーナーノズルに導いて点火し、喫煙用の炎を形成
している。For example, in the most general structure of a portable gas lighter, a fuel storage tank is defined inside the body of the gas lighter, and a soft elasticity called a maltoprene is formed in a flow rate adjusting portion of a burner valve connected to the fuel tank. Of the porous material, compressing the maltoplane from the outside, adjusting the flow rate and pressure of the fuel gas passing through the maltoplane, and then guiding it to the burner nozzle to ignite and form a flame for smoking. ing.
【０００４】しかしながら、かかるモルトプレーンは次
のような種々の欠点を有しており、燃料ガスの流量・圧
力調整手段として決して好ましいものではなかった。However, such a maltopline has various drawbacks as described below, and it is by no means preferable as a means for adjusting the flow rate / pressure of the fuel gas.
【０００５】（１） モルトプレーンは温度差±２５℃
に対して、およそ±０．０５ｍｍ程度の伸縮性を有して
いる。一方炎調整のために圧縮されるモルトプレーンの
圧縮寸法は最大でも±０．１ｍｍ程度であるため、温度
変化に伴うモルトプレーンの伸縮により調整値が変動
し、炎長が不安定となる。(1) The temperature difference of moltoprene is ± 25 ° C.
On the other hand, it has elasticity of about ± 0.05 mm. On the other hand, since the compression dimension of the maltoplane compressed for flame adjustment is about ± 0.1 mm at the maximum, the adjustment value fluctuates due to expansion and contraction of the maltoplane due to temperature change, and the flame length becomes unstable.
【０００６】（２） モルトプレーンは多孔質性物質で
ある為、厚みを大きくするとモルトプレーン内に多量の
燃料ガスが残留し、開弁時にこの残留した燃料ガスが一
時に流出して飛火や過大な炎が形成されてしまう結果、
モルトプレーン自体の厚みを大きくすることが出来な
い。このことは、流量・圧力調整の範囲が限定され、調
整部材の移動可能距離を短く限定してしまうため、微妙
な調整操作が要求される。(2) Since the maltoprene is a porous substance, a large amount of fuel gas remains in the maltoprene when the thickness is increased, and the residual fuel gas temporarily flows out at the time of opening the valve to cause a fire or an excessive amount of gas. As a result of the formation of different flames,
The thickness of the malt plane itself cannot be increased. This limits the range of flow rate / pressure adjustment and limits the movable distance of the adjustment member to a short range, and thus requires a delicate adjustment operation.
【０００７】（３） 多孔質のモルトプレーンは、それ
を一定の力で圧縮しても、全ての孔が一定の大きさで一
様に縮減されることがないため、調整部材の移動量と調
整量とが一定の比例関係とならず、このため実際の調整
は炎長を見ながら行われなければならない。(3) In the porous maltoprene, even if it is compressed with a constant force, all the pores are not uniformly reduced with a constant size. The adjustment amount does not have a fixed proportional relationship, and therefore the actual adjustment must be performed while watching the flame length.
【０００８】（４） モルトプレーンは、軟弾性材料を
発泡させて製造されており、個々の孔の側壁は薄く容易
に変形するため、長期に亙って一定の圧力が負荷される
と、弾性復元力が低下し、調整不能となったり、或は調
整機能が低下して来るおそれがある。(4) Moltoprene is manufactured by foaming a soft elastic material, and the side walls of individual holes are thin and easily deformed, so that when a constant pressure is applied for a long period of time, There is a risk that the resilience will decrease, making adjustment impossible, or the adjustment function will deteriorate.
【０００９】（５） モルトプレーン自体の自重は通常
数ｍｇであり、熱量が非常に小さいため、液化燃料を気
化させるに充分な熱量を供給することが出来なかった。(5) Since the weight of the maltoplane itself is usually several mg and the amount of heat is very small, it was not possible to supply a sufficient amount of heat to vaporize the liquefied fuel.
【００１０】このように、液化ガスライターの流量・圧
力調整部材として、従来最も一般的に用いられているモ
ルトプレーンは種々の欠点を有している。As described above, as a flow rate / pressure adjusting member for a liquefied gas lighter, the maltoprene most commonly used in the past has various drawbacks.
【００１１】この発明は細管内を通過する流体は、その
細管の孔径と長さに比例した関係で流量と圧力の調整が
行われる事実を利用して液化燃料の流量及び圧力を調整
せんとするものである。一般にこのような細管は、キャ
ピラリー管と称せられ、冷凍装置の冷媒ガスの流量・圧
力調整に広く用いられている。According to the present invention, the flow rate and the pressure of the liquefied fuel are adjusted by utilizing the fact that the flow rate and the pressure of the fluid passing through the narrow tube are adjusted in proportion to the hole diameter and the length of the narrow tube. It is a thing. Generally, such a thin tube is called a capillary tube and is widely used for adjusting the flow rate / pressure of the refrigerant gas in the refrigerating apparatus.
【００１２】しかしながら、このような冷凍装置に用い
られるキャピラリー管は、管径０．５〜１．２ｍｍで長
さは最低でも０．５ｍ程度であるため、液化ガスライタ
ーやガスコンロ、ガストーチの如き携帯用の燃焼器具に
は、実際上用いることが出来ない。液化ガスライターの
バーナーノズルから流出する燃料ガスの流量は、せいぜ
い毎秒０．４ｃｃ程度にすぎず、かかる流量を調整する
には孔径３〜８μｍ、長さ１５ｍｍ程度のキャピラリー
管が必要となるが、このようなパイプを製造することは
実際上不可能であり、又仮に可能であったとしても、き
わめて製造コストが高くなってしまい、低コストを要求
される携帯用燃焼器具には到底用いることが出来ないも
のである。However, since the capillary tube used in such a refrigerating apparatus has a tube diameter of 0.5 to 1.2 mm and a length of at least about 0.5 m, it can be carried by a liquefied gas lighter, a gas stove, or a gas torch. It cannot be practically used as a burning appliance for the. The flow rate of the fuel gas flowing out from the burner nozzle of the liquefied gas lighter is no more than 0.4 cc per second at most, and a capillary tube having a hole diameter of 3 to 8 μm and a length of about 15 mm is required to adjust this flow rate. It is practically impossible to manufacture such a pipe, and even if it is possible, the manufacturing cost becomes extremely high, and it can be used at all for a portable combustion appliance that requires low cost. It cannot be done.
【００１３】[0013]
【発明が解決しようとする課題】この発明は、細管内を
通過する流体は、細管の孔径と長さに比例した関係で圧
力と流量が調整されるというキャピラリー管の原理を応
用しつつ、携帯用燃焼器具に用いるに適した構造を提供
せんとするものである。SUMMARY OF THE INVENTION The present invention applies the principle of a capillary tube in which the pressure and flow rate of a fluid passing through a thin tube are adjusted in a relationship proportional to the hole diameter and length of the thin tube. It is intended to provide a structure suitable for use in a combustion appliance for an automobile.
【００１４】[0014]
【課題を解決するための手段】上記課題を解決するため
に、この発明が採った手段は、燃料ガスを加圧下で液状
に貯蔵するスペースと該燃料ガスを燃焼する燃焼部との
間に、細い線材を少なくとも３本束ねその外周面をガス
不透過性の被覆材料で被覆し、各線材の重合部に形成さ
れる間隙を燃料の通路と成し、間隙の大きさ及び長さに
より通過する燃料の流量と圧力を調整するようにした調
整部材を配置したことを特徴とする。Means for Solving the Problems In order to solve the above-mentioned problems, the means adopted by the present invention include: a space for storing a fuel gas in a liquid state under pressure; and a combustion section for burning the fuel gas. At least three thin wire rods are bundled and the outer peripheral surface is covered with a gas impermeable coating material, and the gap formed in the overlapping portion of each wire rod serves as a fuel passage, and passes through the size and length of the gap. It is characterized in that an adjusting member for adjusting the flow rate and pressure of the fuel is arranged.
【００１５】[0015]
【作 用】少なくとも３本の線材を集束し、外周面を流
体不透過性の材料で密封し、集束された線材の間に形成
される間隙を液化燃料の通路としてあるので、間隙の大
きさと長さに比例して流量と圧力が調整される。液化燃
料の間隙の大きさは集束する線材の外径により任意に設
定することが可能であり、又長さは線材の長さによって
設定することが出来る。更に、集束する線材を増加する
ことにより、間隙の総断面積を増加させて、総流量を増
加することが出来る。[Operation] At least three wires are bundled, the outer peripheral surface is sealed with a fluid impermeable material, and the gap formed between the bundled wires serves as a passage for liquefied fuel. The flow rate and pressure are adjusted in proportion to the length. The size of the gap of the liquefied fuel can be arbitrarily set by the outer diameter of the wire to be focused, and the length can be set by the length of the wire. Further, by increasing the number of wires to be focused, the total cross-sectional area of the gap can be increased and the total flow rate can be increased.
【００１６】線材は、その材質にもよるが、キャピラリ
ー管と同じ銅線を用いた場合、±２５℃の温度変化に対
して、±０．０５μｍ程度の伸縮を示すにすぎず、モル
トプレーンに比して温度に対して安定しているため、温
度変化に対して安定した調整を行うことが出来る。又、
多孔質でない為、間隙の大きさが一定しており、しかも
圧縮する必要がないため、長期間に亙って安定した調整
を行うことが出来る。線材が保有する熱量はモルトプレ
ーンに比してきわめて大きいため、液化燃料の気化を効
率良く達成することが出来る。When the same copper wire as the capillary tube is used, the wire rod expands or contracts by about ± 0.05 μm with respect to a temperature change of ± 25 ° C., but it does not change to a malt plane. Since it is stable with respect to temperature, it is possible to perform stable adjustment with respect to temperature changes. or,
Since it is not porous, the size of the gap is constant, and since it is not necessary to compress it, stable adjustment can be performed over a long period of time. Since the amount of heat held by the wire rod is much larger than that of the moltoplane, it is possible to efficiently vaporize the liquefied fuel.
【００１７】[0017]
【発明の効果】この発明によれば、集束する線材の外
径、数及び長さによって流量と圧力を任意に設定するこ
とが可能となり、キャピラリー管と同様の流体の流量・
圧力調整機能を達成することが出来る。又、細いパイプ
材を製造する必要がなく、製造コストの低下を図ること
が出来、携帯用燃焼器具のための流量・圧力調整装置と
してきわめて優れたものを提供することが出来る。更
に、従来のモルトプレーンを用いる流量・圧力調整装置
にみられた種々の欠点を効果的に解消することが出来
る。According to the present invention, the flow rate and pressure can be arbitrarily set depending on the outer diameter, the number and the length of the wire to be focused, and the flow rate of the fluid similar to that of the capillary tube can be set.
A pressure adjusting function can be achieved. Further, since it is not necessary to manufacture a thin pipe material, the manufacturing cost can be reduced, and an extremely excellent flow rate / pressure adjusting device for a portable combustion appliance can be provided. Further, various defects found in the conventional flow rate / pressure adjusting device using the maltopline can be effectively eliminated.
【００１８】[0018]
【実施例】以下に図面を参照しつつ、この発明の好まし
い実施例を詳細に説明する。図において、（１）は密封
された空間からなる燃料貯蔵スペースであり、加圧下に
燃料ガスを液状で貯蔵することが可能であり、実際の携
帯用燃焼器具にあっては、器具本体内に画成された燃料
タンク若しくは燃焼器具に外装されるガスボンベの形態
で提供される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. In the figure, (1) is a fuel storage space consisting of a sealed space, which can store the fuel gas in a liquid state under pressure. It is provided in the form of a gas cylinder that is fitted to a defined fuel tank or combustion appliance.
【００１９】（２）は、燃料貯蔵スペース（１）に接続
される流量・圧力調整装置であり、図示の実施例では、
燃料貯蔵スペースを画成する壁（３）に固着されている
が、これは単に一例を示すにすぎず、これに限られるも
のではない。燃料貯蔵スペース（１）と流量・圧力調整
装置（２）を離間して配置し、両者をパイプを介して接
続したり、或は燃料貯蔵スペースに接続されるバーナー
弁装置内に配置した構造であっても良い。(2) is a flow rate / pressure adjusting device connected to the fuel storage space (1), and in the illustrated embodiment,
It is affixed to the wall (3) defining the fuel storage space, but this is merely an example and is not a limitation. A structure in which the fuel storage space (1) and the flow rate / pressure adjusting device (2) are spaced apart from each other and connected to each other via a pipe, or in a burner valve device connected to the fuel storage space. It may be.
【００２０】流量・圧力調整装置（２）は、一端を燃料
貯蔵スペース（１）内に連通し、他端をバーナー弁装置
に連通する貫流通路（４）を内部に備えており、該貫流
通路（４）の途中にこの発明に係る流量・圧力調整部材
（５）が配設される。（６）はモルトプレーンであっ
て、流量・圧力調整装置部材（５）のガス流出側端部に
隣接して配置されており、流量・圧力調整装置の本体ケ
ース（７）に螺進退自在に取り付けられた作動杆（８）
により、圧縮自在である。モルトプレーン（６）は、よ
り安定した調整のために補助的な流量・圧力調整部材と
して配置されたものであり、必ずしも配置する必要はな
い。The flow rate / pressure adjusting device (2) is internally provided with a through flow passage (4) having one end communicating with the fuel storage space (1) and the other end communicating with the burner valve device. The flow rate / pressure adjusting member (5) according to the present invention is disposed in the middle of (4). (6) is a maltoplane, which is arranged adjacent to the gas outflow side end of the flow rate / pressure adjusting device member (5) and can be screwed back and forth into the main body case (7) of the flow rate / pressure adjusting device. Attached operating rod (8)
It is compressible. The malt plane (6) is arranged as an auxiliary flow rate / pressure adjusting member for more stable adjustment, and does not necessarily have to be arranged.
【００２１】図２〜４を参照して、流量・圧力調整部材
（５）を詳細に説明する。調整部材（５）は少なくとも
３本以上の線材（９）を束ねて外周面をガス不透過性の
被覆材料（１０）で被覆したものである。線材（９）は
好ましくは可撓性の金属線、例えば軟銅線からなり、３
本以上束ねられ、各線材（９）の間に間隙（１１）を作
出する。The flow rate / pressure adjusting member (5) will be described in detail with reference to FIGS. The adjusting member (5) is made by bundling at least three or more wire rods (9) and coating the outer peripheral surface with a gas impermeable coating material (10). The wire (9) preferably comprises a flexible metal wire, for example annealed copper wire, 3
More than one is bundled to create a gap (11) between each wire (9).
【００２２】図示の実施例において、線材（９）は外径
８０μｍの錫メッキを施した軟銅線を７本束ねて、外周
面を塩化ビニル樹脂で被覆したものである。各線材
（９）の重合部に形成される６個の間隙（１１）は３〜
８μｍの大きさを有し、長さは１５ｍｍである。線材
（９）の外径、長さ及び束ねる本数を選択することによ
り、流量と圧力を任意に設定することが出来る。又、線
材（９）を可撓性とすることにより、コイル状に巻回し
て狭いスペースやタンク内にセットすることも自由とな
る。In the illustrated embodiment, the wire (9) is formed by bundling seven tin-plated annealed copper wires having an outer diameter of 80 μm and coating the outer peripheral surface with vinyl chloride resin. The six gaps (11) formed in the overlapping portion of each wire (9) are 3 to
It has a size of 8 μm and a length of 15 mm. The flow rate and pressure can be set arbitrarily by selecting the outer diameter, the length, and the number of bundled wires (9). Further, by making the wire rod (9) flexible, it is possible to freely wind the wire rod (9) and set it in a narrow space or a tank.
【００２３】このようにして形成した調整部材（５）
は、温度に対する伸縮性がモルトプレーンに比してきわ
めて小さい、例えば軟銅線で±２５℃の温度変化に対し
て±０．０５μｍとモルトプレーンの約１／１０００の
値であるため、温度変化に対して安定した調整値を得る
ことが出来る。又、保有する熱量は、モルトプレーンの
数倍の値を示し、液化燃料の気化を良好に達成すること
が出来る。The adjusting member (5) thus formed
Is extremely small in elasticity with respect to temperature compared to moltoprene. For example, an annealed copper wire has a value of ± 0.05 μm for a temperature change of ± 25 ° C, which is about 1/1000 of that of a maltopline. On the other hand, a stable adjustment value can be obtained. Further, the amount of heat retained is a value several times higher than that of maltoprene, and vaporization of the liquefied fuel can be satisfactorily achieved.
図１ この発明に係る調整部材を装置した断面図 図２ 線材の斜視図 図３ 調整部材の斜視図 図４ 断面図 1 Cross-sectional view of the adjusting member according to the present invention 2 Perspective view of wire rod 3 Perspective view of adjusting member 4 Cross-sectional view
(１) 燃料貯蔵スペース (２) 流量・圧力調整装置 (３) 壁 (４) 貫流通路 (５) 流量・圧力調整部材 (６) モルトプレーン (７) 本体ケース (８) 作動杆 (９) 線 材 (10) 被覆材料 (11) 間 隙 (1) Fuel storage space (2) Flow rate / pressure adjusting device (3) Wall (4) Through passage (5) Flow rate / pressure adjusting member (6) Moltoprene (7) Main body case (8) Actuating rod (9) Wire Material (10) coating material (11) gap
Claims (4)
ースと該燃料ガスを燃焼する燃焼部との間に、細い線材
を少なくとも３本束ねその外周面をガス不透過性の被覆
材料で被覆し、各線材の重合部に形成される間隙を燃料
の通路と成し、間隙の大きさ及び長さにより通過する燃
料の流量と圧力を調整するようにした調整部材を配置し
たことを特徴とする液化燃料の流量・圧力調整装置。1. At least three thin wire rods are bundled between a space for storing fuel gas in a liquid state under pressure and a combustion section for burning the fuel gas, and the outer peripheral surface thereof is coated with a gas-impermeable coating material. However, the gap formed in the overlapping portion of each wire is formed as a fuel passage, and an adjusting member for adjusting the flow rate and pressure of the passing fuel is arranged according to the size and length of the gap. Liquefied fuel flow rate and pressure adjustment device.
ニール樹脂であることを特徴とする請求項(１)記載の調
整装置。2. The adjusting device according to claim 1, wherein the wire is an annealed copper wire and the covering member is vinyl chloride resin.
する請求項(１)又は(２)記載の調整装置。3. The adjusting device according to claim 1, wherein the wire has flexibility.
線材の間に３〜８μｍの間隙が形成されていることを特
徴とする請求項（１）（２）又は（３）記載の調整装
置。4. The wire according to claim 1, wherein the wire has an outer diameter of 80 μm, and a gap of 3 to 8 μm is formed between the wires to be polymerized. Adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3042898A JPH06117635A (en) | 1991-02-15 | 1991-02-15 | Flow rate and pressure control device for liquefied fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3042898A JPH06117635A (en) | 1991-02-15 | 1991-02-15 | Flow rate and pressure control device for liquefied fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06117635A true JPH06117635A (en) | 1994-04-28 |
Family
ID=12648851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3042898A Pending JPH06117635A (en) | 1991-02-15 | 1991-02-15 | Flow rate and pressure control device for liquefied fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06117635A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01234683A (en) * | 1988-03-14 | 1989-09-19 | Masaharu Oba | Fluid conveying composite pipe |
-
1991
- 1991-02-15 JP JP3042898A patent/JPH06117635A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01234683A (en) * | 1988-03-14 | 1989-09-19 | Masaharu Oba | Fluid conveying composite pipe |
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