JPH0118554Y2 - - Google Patents
Info
- Publication number
- JPH0118554Y2 JPH0118554Y2 JP1983161370U JP16137083U JPH0118554Y2 JP H0118554 Y2 JPH0118554 Y2 JP H0118554Y2 JP 1983161370 U JP1983161370 U JP 1983161370U JP 16137083 U JP16137083 U JP 16137083U JP H0118554 Y2 JPH0118554 Y2 JP H0118554Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- powder
- valve
- valve seat
- flow path
- 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.)
- Expired
Links
- 239000000843 powder Substances 0.000 claims description 36
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000012856 packing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は弁体を流路と直交する方向に摺動させ
て粉粒体の流れを遮断する粉体遮断弁に関するも
のである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a powder shutoff valve that shuts off the flow of powder by sliding a valve body in a direction perpendicular to a flow path.
例えば、鉄鉱石やセメントや化学品などの粉体
を輸送したり装置へ供給したりする場合に粉体の
流れを遮断するものとして粉体遮断弁が用いられ
ており、その一種として、例えば流路の半径と同
半径の先端半円弧部を有する板状の弁体を、流路
と直交方向に摺動させて流路を締切るようにした
ものが知られている。
For example, a powder shutoff valve is used to shut off the flow of powder such as iron ore, cement, and chemicals when transporting it or supplying it to equipment. It is known that a plate-shaped valve body having a semicircular tip portion with the same radius as the channel is slid in a direction perpendicular to the channel to close the channel.
この種の従来の粉体遮断弁は、締切り部が円筒
状流路と円弧形板状の弁体との嵌合であるため
に、流路と弁体との間のごく一部に粉体が噛んで
も残りの半円弧面間がすき間となり、締切り精度
を低下させることが多かつた。また、高温の粉体
を通過させる場合、熱膨張率の差で締切り部にす
き間ができ、同じく締切り精度が低下することが
あつた。 In this type of conventional powder shutoff valve, the shut-off part is a fitting between a cylindrical flow path and an arcuate plate-shaped valve body, so powder is trapped in a small portion between the flow path and the valve body. Even if the body were to bite, a gap would form between the remaining semicircular arc surfaces, often reducing the closing accuracy. Furthermore, when high-temperature powder is passed through, a gap is created in the closing section due to the difference in coefficient of thermal expansion, and the closing accuracy may also be reduced.
本考案は以上のような点に鑑みなされたもの
で、縦向流路の内周面に、直交方向から挿入され
る板状弁体の周縁部と係合する溝を設け、この溝
と弁体周縁部とのほゞ下半部に下端へ向つて小径
となる傾斜面を形成するとともに、弁体を貫通す
る気体通路を設けて流路へ気体を吹き付けるよう
に構成することにより、溝に溜ろうとする粉体の
落下を促進し締切り部への粉体の噛込みを防止し
て締切り精度の向上を計つた粉体遮断弁を提供す
るものである。以下、本考案の実施例を図面に基
いて詳細に説明する。
The present invention has been developed in view of the above points, and includes providing a groove on the inner circumferential surface of the vertical flow path that engages with the peripheral edge of the plate-shaped valve body inserted from the orthogonal direction. By forming an inclined surface that becomes smaller in diameter toward the lower end in the lower half of the body periphery, and by providing a gas passage that passes through the valve body and blowing gas into the flow path, the groove can be To provide a powder cutoff valve that promotes the falling of powder that would otherwise accumulate and prevents the powder from getting caught in a shutoff part, thereby improving shutoff accuracy. Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図ないし第３図は本考案に係る粉体遮断弁
の実施例を示し、第１図はその縦断面図、第２図
は同じく一部を破断して示す平面図、第３図は弁
体による締切り部の拡大縦断面図である。なお、
本実施例においては粉体の流路が円筒状の場合を
説明する。図において、粉体遮断弁１は、小判形
の透孔２ａを備えて本体側に固定支持されたコ字
状のヨーク２を備えており、その一端にはエアシ
リンダ３が装着されている。またヨーク２の他端
は、上下にフランジ４ａ，４ｂを有する弁本体４
に溶着されており、各フランジ４ａ，４ｂは図示
しない上下の粉体送給用管路にそれぞれ接合され
ている。また弁本体４のヨーク２側には、小判形
筒状に形成されて放熱フインを有するパツキンケ
ース４ｃが一体形成されており、これにはグラン
ドパツキン５が、パツキンケース４ｃにボルト締
めされたパツキン押え６で抜けを阻止されて装填
されている。また、パツキンケース４ｃの外周部
には、N2ガス充填等に用いられるプラグ７が螺
入されている。符号８，９で示すものは、弁本体
４の内周面に溶着された３組のガイドプレート１
０の他端を外周面に溶着することにより弁本体４
に支持された上下一対の弁座受枠であつて、鍔を
有する円筒状に形成されており、パツキンケース
４ｃの中心部に位置決めされて流路の一部を形成
している。各ガイドプレート１０は弁本体４と弁
座受枠８，９とを連結するステー１０ａ，１０ｂ
とこれらを連結するサポータ１０ｃとでＨ字状に
形成されており、サポータ１０ｃは後述する弁座
１５の周面に添接されてこれを三方から支持して
いる。そしてサポータ１０ｃはステー１０ａ側の
みを溶着されていてステー１０ｂ側は溶着されて
おらず、輸送粉体の熱によるサポータ１０ｃの伸
びを許しているとともに、ステー１０ｂに溶着し
たストツパ１０ｄによつて弁座１５からの逃げを
阻止されている。
1 to 3 show an embodiment of the powder shutoff valve according to the present invention, FIG. 1 is a longitudinal sectional view thereof, FIG. 2 is a partially cutaway plan view, and FIG. FIG. 3 is an enlarged vertical cross-sectional view of a shutoff section by a valve body. In addition,
In this embodiment, a case will be described in which the powder flow path is cylindrical. In the figure, a powder shutoff valve 1 includes a U-shaped yoke 2 having an oval-shaped through hole 2a and fixedly supported on the main body side, and an air cylinder 3 is attached to one end of the yoke 2. Further, the other end of the yoke 2 is connected to a valve body 4 having upper and lower flanges 4a and 4b.
The flanges 4a and 4b are respectively joined to upper and lower powder feeding conduits (not shown). Further, on the yoke 2 side of the valve body 4, a packing case 4c formed in an oval cylindrical shape and having heat radiation fins is integrally formed, and a gland packing 5 is attached to the packing case 4c, which is bolted to the packing case 4c. It is loaded with the presser foot 6 preventing it from coming off. Further, a plug 7 used for filling N2 gas, etc. is screwed into the outer peripheral portion of the packing case 4c. Reference numerals 8 and 9 indicate three sets of guide plates 1 welded to the inner peripheral surface of the valve body 4.
By welding the other end of 0 to the outer peripheral surface, the valve body 4
A pair of upper and lower valve seat receiving frames are supported by the upper and lower valve seat receiving frames, and are formed in a cylindrical shape with a flange, and are positioned at the center of the packing case 4c to form a part of the flow path. Each guide plate 10 has stays 10a and 10b that connect the valve body 4 and the valve seat support frames 8 and 9.
and a supporter 10c connecting these are formed in an H-shape, and the supporter 10c is attached to the circumferential surface of a valve seat 15, which will be described later, and supports it from three sides. The supporter 10c is welded only on the stay 10a side and not on the stay 10b side, allowing the supporter 10c to expand due to the heat of the transported powder, and the stopper 10d welded to the stay 10b allows the supporter 10c to be welded to the stay 10b side. He is being prevented from escaping from seat 15.
次に弁体と弁座について説明する。前記エアシ
リンダ３のピストンロツド１１には連結金具１２
が装着されており、さらに連結金具１２には、前
記グランドパツキン５で基部を支持された短冊形
板状の弁体１３が頭付ピン１４によつて枢支され
ている。一方、弁座１５はセラミツク材により弁
座受枠８，９と同径の内周径を有する円筒状に形
成されていて、上部弁座１５ａと下部弁座１５ｂ
とに分割されており、軸方向へは弁座受枠８，
９、円周方向へは３個のサポータ１０ｃで位置決
め固定されている。そして弁座１５には弁体１３
を摺動自在に嵌合させる弁体孔１５ｃが内孔１５
ｄに連続して穿設されており、これら連続する内
孔１５ｄと弁体孔１５ｃの内周面には、平面視Ｕ
字状の弁座溝１６が設けられている。この弁座溝
１６はその断面形状を第３図に拡大して示すよう
にほゞ下半部を三角形状に形成されており、下端
へ向つて小径となる傾斜面１６ａが設けられてい
る。また、弁体１３の先端部は弁座溝１６としつ
くり嵌合して締切り部を構成するように平面視が
半円弧形で傾斜面１３ａが形成されている。そし
てエアシリンダ３のピストンロツド１１が前進す
ると、弁体１３の先端部が弁座溝１６と係合して
流路を閉切り、ピストンロツド１１が後退すると
弁体１３の先端部が弁座１５の内孔１５ｄから退
去して流路が開放されるように構成されている。
１７，１８は弁体１３の閉止方向への移動限と開
放方向への移動限とをそれぞれ規制するリミツト
スイツチである。さらに、弁体１３にはほゞ全長
を貫通する気体通路１３ｂが設けられており、そ
の先端部は三方へ分岐されて流路へ向つて開口さ
れている。また気体通路１３ｂの他端には、口金
１９を介してフレキシブルホース２０が接続され
ており、フレキシブルホース２０の他端は図示し
ないホースを介して気体源としてのガス源に接続
されている。そしてガス源からのガスが気体通路
１３ｂの開口部から噴出して弁座溝１６内へ吹き
付けられるように構成されている。 Next, the valve body and valve seat will be explained. A connecting fitting 12 is attached to the piston rod 11 of the air cylinder 3.
Further, a rectangular plate-shaped valve body 13 whose base is supported by the gland packing 5 is pivotally supported on the connecting fitting 12 by a head pin 14. On the other hand, the valve seat 15 is made of ceramic material and is formed into a cylindrical shape having the same inner diameter as the valve seat receiving frames 8 and 9, and includes an upper valve seat 15a and a lower valve seat 15b.
In the axial direction, the valve seat support frame 8,
9. Positioned and fixed in the circumferential direction by three supports 10c. And the valve body 13 is on the valve seat 15.
The inner hole 15 is the valve body hole 15c into which the valve body is slidably fitted.
d, and the inner circumferential surfaces of these continuous inner holes 15d and valve body holes 15c have U in plan view.
A letter-shaped valve seat groove 16 is provided. As shown in the enlarged cross-sectional view of FIG. 3, the valve seat groove 16 has a substantially triangular lower half, and is provided with an inclined surface 16a that becomes smaller in diameter toward the lower end. Further, the distal end portion of the valve body 13 has a semicircular arc shape in plan view and an inclined surface 13a is formed so as to fit into the valve seat groove 16 and form a shutoff portion. When the piston rod 11 of the air cylinder 3 moves forward, the tip of the valve body 13 engages with the valve seat groove 16 to close off the flow path, and when the piston rod 11 retreats, the tip of the valve body 13 moves inside the valve seat 15. It is configured so that it retreats from the hole 15d and the flow path is opened.
Reference numerals 17 and 18 are limit switches that respectively limit the movement limit of the valve body 13 in the closing direction and the movement limit in the opening direction. Furthermore, the valve body 13 is provided with a gas passage 13b that penetrates almost its entire length, and its tip is branched into three directions and opened toward the flow path. Further, a flexible hose 20 is connected to the other end of the gas passage 13b via a cap 19, and the other end of the flexible hose 20 is connected to a gas source as a gas source via a hose (not shown). The gas from the gas source is ejected from the opening of the gas passage 13b and blown into the valve seat groove 16.
このように構成された弁の弁本体４内部には、
アルミナシリカで形成されたキヤスタブル２１
（不定形耐火物）が充填されている。すなわち、
弁本体４、弁座受枠８，９、弁座１５がガイドプ
レート１０で固定されたのち弁座１５には弁体１
３と同寸法の治具が挿入され、空間部へ溶融状態
のキヤスタブル２１が流し込まれて所定時間後固
化することにより上記各部材と一体化されてい
る。そして前記弁体１３に設けた平面視Ｕ字状の
傾斜面１３ａは、第２図に符号１３ｃで示すよう
にキヤスタブル２１の外周部まで延設されてお
り、したがつてキヤスタブル２１の流し込みによ
りＵ字状の弁座溝１６もキヤスタブル２１の周面
まで同じ断面形状で延設されている。なお、キヤ
スタブル２１の流し込みに際しては治具の表面に
蝋が塗られ、キヤスタブル２１の固化とともに蝋
が溶融することにより治具の摺動が可能となるよ
うに構成されている。キヤスタブル２１の固化後
は治具を抜いて弁体１３と交換する。 Inside the valve body 4 of the valve configured in this way,
Castable 21 made of alumina silica
(unshaped refractory) is filled. That is,
After the valve body 4, valve seat frames 8, 9, and valve seat 15 are fixed with the guide plate 10, the valve body 1 is attached to the valve seat 15.
A jig having the same dimensions as 3 is inserted, and the molten castable 21 is poured into the space and solidified after a predetermined period of time to be integrated with each of the above members. The inclined surface 13a, which has a U-shape in plan view, provided on the valve body 13 extends to the outer periphery of the castable 21, as shown by reference numeral 13c in FIG. The letter-shaped valve seat groove 16 also extends to the circumferential surface of the castable 21 with the same cross-sectional shape. When pouring the castable 21, the surface of the jig is coated with wax, and as the castable 21 solidifies, the wax melts and the jig becomes slidable. After the castable 21 is solidified, the jig is removed and replaced with the valve body 13.
以上のように構成された粉体遮断弁の動作を説
明する。エアシリンダ３のピストンロツド１１を
前進させると、図示のように弁体１３の平面視Ｕ
字状先端部が弁座１５の弁座溝１６と係合するの
で、弁が締切られ第１図に矢印Ａで示す方向から
送給されてくる粉体の移動が遮断される。この弁
の閉止に際しては、第３図に示すように弁体１３
が弁座溝１６に係入される手前の状態でガス源を
作動させると、ガスが気体通路１３ｂの開口部か
ら噴出して弁座溝１６内へ吹き付けられるので、
弁座溝１６内へ付着しようとする粉体が吹き飛ば
される。この場合、弁座溝１６に傾斜面１６ａを
設けたので、粉体の自重による落下がさらに促進
され、弁座溝１６内が完全に浄化される。こうし
たのち弁体１３を全開にすると、弁座溝１６内に
粉体が付着していないので、弁体１３と弁座１５
との間に粉体が噛み込む虞がない。粉体が例えば
1000℃程度の高熱の場合には粉体が付着し易くな
るが、本装置ではこのようなことがない。またこ
の場合弁座１５が加熱されるが、本実施例のよう
に弁座１５をセラミツク材で形成すれば、高温強
度、変形摩耗に対して強い。 The operation of the powder shutoff valve configured as above will be explained. When the piston rod 11 of the air cylinder 3 is advanced, the valve body 13 appears in plan view U as shown in the figure.
Since the tip of the shape engages with the valve seat groove 16 of the valve seat 15, the valve is closed and movement of powder fed from the direction indicated by arrow A in FIG. 1 is blocked. When closing this valve, as shown in FIG.
When the gas source is operated before the gas is engaged in the valve seat groove 16, gas is ejected from the opening of the gas passage 13b and blown into the valve seat groove 16.
Powder that tends to adhere to the inside of the valve seat groove 16 is blown away. In this case, since the inclined surface 16a is provided in the valve seat groove 16, the falling of the powder due to its own weight is further promoted, and the inside of the valve seat groove 16 is completely purified. After this, when the valve body 13 is fully opened, since no powder has adhered to the inside of the valve seat groove 16, the valve body 13 and the valve seat 15
There is no risk of powder getting caught between the two. For example, powder
When the temperature is as high as 1000°C, powder tends to adhere, but this does not happen with this device. Further, in this case, the valve seat 15 is heated, but if the valve seat 15 is made of ceramic material as in this embodiment, it has high temperature strength and is strong against deformation and wear.
また、断熱材料からなるキヤスタブル２１で断
熱され、常温の例えばN2ガスが吹き付けられる
ので、弁座１５が過熱とならず、弁体１３も内部
を常温のガスが流れることにより冷却され、強度
が確保されるとともに、弁体１３の酸化防止をす
ることができる。 In addition, since it is insulated by the castable 21 made of a heat insulating material and blown with room temperature, for example, N 2 gas, the valve seat 15 does not overheat, and the valve body 13 is also cooled by the room temperature gas flowing inside, increasing its strength. This is ensured, and the valve body 13 can be prevented from being oxidized.
なお、本実施例では弁の粉体流路が円筒状の場
合を説明したが、本考案に係る弁の流路としては
四角あるいは楕円状のものであつてもよい。また
流路の内周面の溝およびこれに係合する弁体周縁
部の傾斜面は溝および弁体の全高にわたつて形成
させてもよい。 In this embodiment, the case where the powder flow path of the valve is cylindrical has been described, but the flow path of the valve according to the present invention may be square or elliptical. Further, the groove on the inner circumferential surface of the flow path and the inclined surface of the peripheral edge of the valve body that engages with the groove may be formed over the entire height of the groove and the valve body.
さらに、本実施例では弁体１３の気体通路１３
ｂから吹き出される気体としてN2ガス等のガス
を例示したが、エアでもよい。また、本実施例で
は気体通路１３ｂを先端部で３個に分岐した例を
示したが、分岐数を限定するものではなく、Ｕ字
状弁座溝１６全体に及ぶように個数を増やすこと
が望ましい。さらに傾斜面１６ａの傾斜角度は粉
体が重力で落下することのできる安息角以上であ
ることが望ましく、温度や粉体の種類によつて異
なるが、35゜〜40゜位が適当である。また、本実施
例では本考案の効果が最も顕著である粉体流路が
垂直の場合を例示したが、必ずしも垂直である必
要はなく縦方向であれば傾斜していてもよい。な
お、粉体の流れ方向は場合によつては下方から上
方へ向うこともあるが、この場合でも同じように
作用する。 Furthermore, in this embodiment, the gas passage 13 of the valve body 13
Although a gas such as N 2 gas is exemplified as the gas blown out from b, air may also be used. Furthermore, although this embodiment shows an example in which the gas passage 13b is branched into three at the tip, the number of branches is not limited, and the number may be increased to cover the entire U-shaped valve seat groove 16. desirable. Further, the angle of inclination of the inclined surface 16a is desirably greater than the angle of repose at which the powder can fall due to gravity, and is suitably between 35° and 40°, although it varies depending on the temperature and the type of powder. Further, in this example, the case where the powder flow path is vertical is illustrated where the effect of the present invention is most remarkable, but it does not necessarily have to be vertical and may be inclined as long as it is vertical. In some cases, the flow direction of the powder may be from the bottom to the top, but the same effect occurs even in this case.
以上の説明により明らかなように、本考案によ
れば、流路の内周面に設けた溝に板状弁体の先端
周縁部を係合させ、この係合部に下端へ向つて小
径となる傾斜面を形成するとともに、気体源に接
続されて弁体を貫通し流路へ向つて開口する気体
通路を設けることにより、弁を閉止させるときに
流路内周面の溝へ向つて気体が吹き付けられて粉
体が吹き飛ばされ、傾斜面に沿つて落下するの
で、弁を全閉しても弁体と流路との間に粉体が噛
み込むことがなく、締切り精度を著しく向上させ
ることができ、特に高温の粉体の場合にこの効果
が著しい。また、粉体の高温の場合に弁座や弁体
が加熱されても気体の吹き付けと通過によつて冷
却されるので過熱となることがなく、締切り精度
が向上するとともに、弁座や弁体の強度を確保す
ることができる。
As is clear from the above description, according to the present invention, the tip peripheral edge of the plate-shaped valve body is engaged with the groove provided on the inner circumferential surface of the flow path, and a small diameter groove is inserted into this engagement portion toward the lower end. By forming an inclined surface and providing a gas passage that is connected to a gas source, passes through the valve body, and opens toward the flow path, when the valve is closed, gas flows toward the groove on the inner peripheral surface of the flow path. The powder is blown away and falls along the slope, so even when the valve is fully closed, powder does not get caught between the valve body and the flow path, significantly improving shutoff accuracy. This effect is particularly noticeable in the case of high-temperature powder. In addition, even if the valve seat and valve body are heated when the powder is at a high temperature, they are cooled by the blowing and passing of gas, so they do not overheat, improving the shut-off accuracy, and improving the valve seat and valve body. strength can be ensured.
第１図ないし第３図は本考案に係る粉体遮断弁
の実施例を示し第１図はその縦断面図、第２図は
同じく一部を破断して示す平面図、第３図は弁体
による締切り部の拡大縦断面図である。
１……粉体遮断弁、８，９……弁座受枠、１３
……弁体、１３ａ……傾斜面、１３ｂ……気体通
路、１５……弁体、１５ｃ……弁体孔、１５ｄ…
…内孔、１６……弁座溝、１６ａ……傾斜面、２
０……フレキシブルホース。
1 to 3 show an embodiment of the powder shutoff valve according to the present invention, FIG. 1 is a longitudinal sectional view thereof, FIG. 2 is a partially cutaway plan view, and FIG. 3 is a valve FIG. 3 is an enlarged longitudinal cross-sectional view of the body closure section. 1... Powder shutoff valve, 8, 9... Valve seat support frame, 13
... Valve body, 13a... Inclined surface, 13b... Gas passage, 15... Valve body, 15c... Valve body hole, 15d...
...Inner hole, 16... Valve seat groove, 16a... Inclined surface, 2
0...Flexible hose.
Claims (1)
る板状の弁体を備えた粉体遮断弁において、前記
流路の内周面に前記弁体の周縁部と係合する溝を
設け、この溝と弁体周縁部に下端へ向つて小径と
なる傾斜面を形成するとともに、前記弁体を貫通
して前記流路へ開口し他方の開口端が気体源に接
続された気体通路を設けたことを特徴とする粉体
遮断弁。 In a powder cutoff valve equipped with a plate-shaped valve body that moves forward and backward in a direction perpendicular to a flow path extending in the vertical direction, a groove is provided on an inner circumferential surface of the flow path to engage with a peripheral edge of the valve body, A sloping surface whose diameter becomes smaller toward the lower end is formed in this groove and the peripheral edge of the valve body, and a gas passage is provided that penetrates the valve body and opens into the flow path, and the other open end is connected to a gas source. A powder shutoff valve characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16137083U JPS6070589U (en) | 1983-10-20 | 1983-10-20 | powder shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16137083U JPS6070589U (en) | 1983-10-20 | 1983-10-20 | powder shutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070589U JPS6070589U (en) | 1985-05-18 |
| JPH0118554Y2 true JPH0118554Y2 (en) | 1989-05-30 |
Family
ID=30354663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16137083U Granted JPS6070589U (en) | 1983-10-20 | 1983-10-20 | powder shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070589U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5486165A (en) * | 1977-12-17 | 1979-07-09 | Toyota Motor Corp | Pulverulent body paint effder |
-
1983
- 1983-10-20 JP JP16137083U patent/JPS6070589U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5486165A (en) * | 1977-12-17 | 1979-07-09 | Toyota Motor Corp | Pulverulent body paint effder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6070589U (en) | 1985-05-18 |
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