JPH0611371B2 - Method for manufacturing cylindrical element for filtration or separation - Google Patents
Method for manufacturing cylindrical element for filtration or separationInfo
- Publication number
- JPH0611371B2 JPH0611371B2 JP62097284A JP9728487A JPH0611371B2 JP H0611371 B2 JPH0611371 B2 JP H0611371B2 JP 62097284 A JP62097284 A JP 62097284A JP 9728487 A JP9728487 A JP 9728487A JP H0611371 B2 JPH0611371 B2 JP H0611371B2
- Authority
- JP
- Japan
- Prior art keywords
- filtration
- wire
- cylindrical
- frame plate
- separation
- 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 - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims description 22
- 238000000926 separation method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title description 4
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、各種濾過または粒子分離を行うための濾過
ないし分離用円筒状素子の製造方法に関する。TECHNICAL FIELD The present invention relates to a method for manufacturing a cylindrical element for filtration or separation for performing various kinds of filtration or particle separation.
従来、一般に知られるこの種の円筒状素子は、多数のパ
ンチング孔を穿った構造のものや、網状ないし格子状の
濾過孔を穿った構造のものが、概して一般的である。Conventionally generally known cylindrical elements of this type have a structure in which a large number of punched holes are formed or a structure in which mesh-shaped or lattice-shaped filter holes are formed.
また、最近では、セラミツクスを用いたポーラス状の素
子が開発されている。Recently, a porous element using ceramics has been developed.
しかしながら、前者にあっては、点的濾過孔であるた
め、濾過面積が小さく、従って目詰まり現象が大きいと
いう不都合があり、濾過粒度が小さくなればなる程その
傾向も増大するという問題点があった。However, in the former case, since it is a point filtration hole, there is a disadvantage that the filtration area is small and therefore the clogging phenomenon is large, and there is a problem that the tendency increases as the filtration particle size becomes smaller. It was
また、後者にあっては、ポーラス構造は立体濾過を強い
ることとなり、ポーラス構造内に不透過異物が目詰まり
となって成長し、濾過量の低下を避け得ない。したがっ
て、頻繁にポーラス構造内の異物を洗浄などによって完
全に除去しなければならないという問題点があった。Further, in the latter case, the porous structure imposes three-dimensional filtration, and impermeable foreign substances are clogged and grown in the porous structure, and a reduction in filtration amount cannot be avoided. Therefore, there has been a problem that the foreign matter in the porous structure must be frequently removed completely by washing or the like.
この発明は、叙上の点に着目して成されたもので、多孔
構造を備えた円筒状枠板の内面に一方より他方に向う渦
巻状で不連続な係止溝を穿設し、この係止溝に所望の断
面形状に加工した線材の外周端縁を線材の弾性に抗して
湾曲係止し、線材の弾性復元力により固定させ、前記線
材の両端部を固定固着手段で前記円筒状枠板に係止固定
し、隣り合う線材の周縁間に渦巻状のスリット孔を形成
することを特徴とする濾過ないし分離用円筒状素子の製
造方法。This invention was made by paying attention to the above points, and a spiral discontinuous locking groove is formed in the inner surface of a cylindrical frame plate having a porous structure from one to the other. The outer peripheral edge of the wire rod processed into a desired cross-section in the locking groove is curved and locked against the elasticity of the wire rod and fixed by the elastic restoring force of the wire rod, and both ends of the wire rod are fixed by the fixing means. A method for manufacturing a cylindrical element for filtration or separation, which comprises locking and fixing to a frame member, and forming a spiral slit hole between the peripheral edges of adjacent wire rods.
以上のような製造方法で円筒状素子が製造されるので、
捲装された線材の両端部だけが円筒状枠板に固定係止さ
れ、他の部分は係止溝と線材外周縁部とを係合させるだ
けで線材の持つ弾性によって係止し、線材の弾性復元力
によって確実に保持されるので、きわめて高い精度を保
持して円筒状素子が製造される。Since the cylindrical element is manufactured by the above manufacturing method,
Only both ends of the wound wire rod are fixed and locked to the cylindrical frame plate, and the other portions are locked by the elasticity of the wire rod only by engaging the locking groove and the outer peripheral edge of the wire rod. Since it is securely held by the elastic restoring force, the cylindrical element is manufactured with extremely high precision.
これに加えて、素子の形状が円筒状に構成されているの
で、平面形状に比し内側から外方に向う液体や気体など
の被処理流体に対する処理面が拡大すると共に、濾過な
いし分離処理を行う孔は渦巻状のスリット孔であるため
所謂線的な処理孔を形成し濾過流量を増大できる。In addition to this, since the element is configured in a cylindrical shape, the surface to be treated with respect to the fluid to be treated such as liquid or gas that goes from the inside to the outside is expanded as compared with the planar shape, and the filtration or separation treatment is performed. Since the holes to be formed are spiral slit holes, so-called linear processing holes can be formed to increase the filtration flow rate.
また、濾カスなどの残渣物は外側より内方に向う洗浄流
体の逆洗またはスクレーパによる引掻きなど簡単な手段
で除去できるので、処理作業を円滑に行うことができ
る。Further, since residues such as filter residue can be removed by a simple means such as backwashing the cleaning fluid from the outside to the inside or scratching with a scraper, the processing operation can be carried out smoothly.
以下に、この発明の一実施例を図面と共に説明する。 An embodiment of the present invention will be described below with reference to the drawings.
１は表面が全体として円筒形状を備える円筒状枠板を示
し、両端に設けられる同一形状の環状部材２，３と両部
材２，３間に装架した複数の支枠４とより成っている。
５は前記円筒状枠板１の一方より他方に向って形成され
る一定ピツチで精度よく刻設した渦巻状で不連続な係止
溝、６は前記係止溝５に沿って係合されながら渦巻状に
捲装される線材を示し、この線材６の両端部を、両円環
状部２，３とにそれぞれ穿設した凹溝７に係合させて、
かつ、固定固着手段の一例であるビスなどの係止具８を
用いて係止固定することにより円筒状枠板１に確実にか
つ容易に固定係止することができる。Reference numeral 1 denotes a cylindrical frame plate whose surface has a cylindrical shape as a whole, and is composed of annular members 2 and 3 of the same shape provided at both ends and a plurality of support frames 4 mounted between the members 2 and 3. .
Reference numeral 5 is a spiral discontinuous engagement groove formed by a fixed pitch formed from one side of the cylindrical frame plate 1 toward the other side with high precision, and 6 is engaged along the engagement groove 5. A wire rod wound in a spiral shape is shown, and both ends of this wire rod 6 are engaged with concave grooves 7 formed in both annular portions 2 and 3, respectively,
Further, by locking and fixing using a locking tool 8 such as a screw which is an example of a fixing and fixing means, it is possible to securely and easily fix and lock the cylindrical frame plate 1.
なお、上記線材６は断面二等辺三角形の形状を備え、し
かも係合溝５は、この線材６の頂部の形状と一致して、
渦巻形状が得られるＶ字状に穿設されると共に、捲回さ
れた線材６の隣り合う表面は同一円筒曲面上に形成され
るので、平滑曲面Ｐを形成できる。The wire 6 has a shape of an isosceles triangle in cross section, and the engaging groove 5 has the same shape as the top of the wire 6.
Since the spirally wound V-shape is obtained and the adjacent surfaces of the wound wire rod 6 are formed on the same cylindrical curved surface, the smooth curved surface P can be formed.
そして、渦巻状に捲装固定された線材６の隣り合う周縁
間に渦巻状の均等な間隔のスリット孔９を形成できる。
そして、スリット孔９の精度は、線材６の加工精度およ
び円筒状枠板１への渦巻状の係合溝５の切削精度によっ
て、まず決定され、さらに線材６の捲回操作によって最
終的に決定され、線材の持つ弾性復元力によって保持さ
れる。Then, the spiral slit holes 9 can be formed between the adjacent peripheral edges of the spirally wound wire rod 6.
The accuracy of the slit hole 9 is first determined by the processing accuracy of the wire rod 6 and the cutting accuracy of the spiral engagement groove 5 on the cylindrical frame plate 1, and finally by the winding operation of the wire rod 6. The wire is held by the elastic restoring force of the wire.
図示の実施例に示す断面二等辺三角形の線材６を用いた
場合、スリット孔９の幅長は、数ミクロンから数十ミク
ロンは勿論のこと１ミクロン以下の大きさまでの精度が
得られている。When the wire rod 6 having an isosceles triangular cross section shown in the illustrated embodiment is used, the width of the slit hole 9 is accurate to several micron to several tens of micron as well as 1 micron or less.
なお、線材６および円筒状枠板１の素材は、金属は勿論
のこと他のプラスチック或はセラミツクなど好みの材料
でも実施できる。The material of the wire rod 6 and the cylindrical frame plate 1 can be not only metal but also any other desired material such as plastic or ceramic.
叙上の構成に基づいて作用を説明する。The operation will be described based on the above configuration.
先ず、三角断面形状の線材６の三角形の頂端を係止溝５
に係合係止させながら、線材６を円筒状枠板の内面に捲
き込む。捲込みが終ったら線材６の両端部の位置を両円
環状部２，３の凹溝７の位置に合わせて係合させ、ビス
などの係止具８で両円環状部２，３に係止固定すること
により、線材６は自体の持つ弾性により円筒状枠板１に
確実に係止固定される。First, the triangular top end of the wire rod 6 having a triangular cross-section is provided with the locking groove 5
The wire rod 6 is wound around the inner surface of the cylindrical frame plate while being engaged and locked with. After the winding is completed, the positions of both ends of the wire rod 6 are aligned with the positions of the recessed grooves 7 of the annular portions 2 and 3 and engaged, and the engaging portions 8 such as screws engage the annular portions 2 and 3. By being fixedly fixed, the wire rod 6 is securely locked and fixed to the cylindrical frame plate 1 by its own elasticity.
これによって、形成された円筒状素子を、第１図に示す
状態で、渦巻状の線材６により内側に形成される平滑曲
面Ｐを一次側に向け、外周の環状部材２，３を利用して
管路などに固定し所望の被処理流体（液体または気体）
を矢印方向よりスリット孔９に向けて通過させる。As a result, in the state shown in FIG. 1, the formed cylindrical element has the smooth curved surface P formed on the inner side by the spiral wire rod 6 toward the primary side, and the annular members 2 and 3 on the outer periphery are used. The desired fluid to be processed (liquid or gas) fixed to a pipe line, etc.
In the direction of the arrow toward the slit hole 9.
濾過ないし分離を目的とする被処理流体は、スリット孔
９の幅長の大きさによってその大きさより大きい濾過な
いし分離された残渣物は取除かれ、スリット孔９の幅長
より小さい粒子を含む流体は、通過して所謂、濾過ない
し分離を行うことができる。The fluid to be treated for the purpose of filtration or separation is a fluid containing particles smaller than the width of the slit hole 9 after removing the filtered or separated residue larger than that size depending on the size of the width of the slit hole 9. Can be passed through for so-called filtration or separation.
濾過ないし分離された残渣物は、線材６の円筒状内周曲
面の平滑曲面Ｐ上に堆積されるとか逆方向（二次側）よ
りの流体により逆洗またはスクレーパ（図示せず）とか
によって簡単にしかも確実に清拭できるので、好みの濾
過ないし分離を連続に行うことができる。The filtered or separated residue is simply deposited on the smooth curved surface P of the cylindrical inner peripheral surface of the wire 6 or by backwashing with a fluid in the opposite direction (secondary side) or a scraper (not shown). Moreover, since it can be wiped surely, the desired filtration or separation can be continuously performed.
以上、この発明について一実施例を説明したが、上述の
円筒状枠板１は、図示しないが支枠４に代えて多数の孔
を開口した平板とか格子状の網板とかスノコ状板などを
円筒状に加工して用いても良く、さらに、係止溝５は渦
巻状に捲装される線材６の断面形状が丸形、楕円形、梯
形などの形状に応じてそれぞれの形状と係合できる溝と
して形成できることは勿論である。Although one embodiment of the present invention has been described above, the cylindrical frame plate 1 described above may be a flat plate having a large number of holes opened in place of the support frame 4, a mesh plate in the form of a grid, a slat plate, etc., although not shown. The locking groove 5 may be processed into a cylindrical shape, and the locking groove 5 may be engaged with the spirally wound wire 6 depending on the cross-sectional shape such as round, oval, or trapezoidal. Of course, the groove can be formed.
また、円筒状枠板１の環状部２，３と、捲装される線材
６の両端との固定固着手段は、前記実施例のビスなどの
係止具８による両端固定に加えて、スポット溶着とか、
接着剤による固着など好みの方法を用いることができ
る。The fixing means for fixing the annular portions 2 and 3 of the cylindrical frame plate 1 to both ends of the wire 6 to be wound is not only fixed at both ends by the locking tool 8 such as the screw in the above-described embodiment, but also spot welded. And,
A desired method such as fixing with an adhesive can be used.
この発明によれば、所望の断面形状に加工した線材によ
って円筒状枠板の内面に平滑曲面を形成し、渦巻状のス
リット孔を形成した、所謂線的処理孔となって濾過ない
し分離などの処理量は著しく大きくできる濾過ないし分
離用円筒状素子を製造できる。According to the present invention, a smooth curved surface is formed on the inner surface of a cylindrical frame plate by a wire rod processed into a desired cross-sectional shape, and a spiral slit hole is formed. Cylindrical elements for filtration or separation can be produced which can have a significantly high throughput.
そして、スリット孔自体渦巻状に捲回された線材の隣り
合う間隙によって渦巻状に形成でき、線材の両端部を円
筒状枠板に係止固定するだけで、線材の両端以外は円筒
状枠板に溶接したりすることなく、線材の持つ弾性によ
って円筒状枠板に確実に係止固定することができ、その
スリット孔の幅長を精度よく決定し、線材自体の弾性復
元力によりスリット孔の形状・精度を保持することがで
き高精度の濾過ないし分離用円筒素子を極めて容易に製
造することができる。The slit holes themselves can be formed in a spiral shape by the adjacent gaps of the spirally wound wire rod, and only the both ends of the wire rod are locked and fixed to the cylindrical frame plate. It can be securely locked and fixed to the cylindrical frame plate by the elasticity of the wire without welding to the wire, the width of the slit hole is accurately determined, and the elasticity of the wire itself restores the slit hole. The shape and accuracy can be maintained, and a highly accurate cylindrical element for filtration or separation can be manufactured very easily.
更に線材と円筒状枠板を溶接する必要がないので、円筒
状枠板を線材と異なる材質、例えばプラスチック等で形
成し使用することができ、濾過ないし分離状況を観察す
ることができる濾過ないし分離用円筒状素子を製造する
こともできる。Further, since it is not necessary to weld the wire rod and the cylindrical frame plate, the cylindrical frame plate can be formed by using a material different from the wire rod, for example, plastic or the like, and the filtration or separation can be observed. It is also possible to manufacture a cylindrical element for use.
これによって、円筒状素子の内面全体が平滑曲面として
形成でき、所謂内側より外方に向って処理流体を流すこ
とができるので各種使いすてフィルターの代りにパーマ
ネント用の濾過ないし分離素子として広く交換性を以っ
て利用できる。As a result, the entire inner surface of the cylindrical element can be formed as a smooth curved surface, and the processing fluid can flow outward from the so-called inner side, so it can be widely replaced as a filtration or separation element for permanent instead of various used filters. It can be used by nature.
第１図は、この発明に係る濾過ないし分離用円筒状素子
の一実施例を示す一部切欠側面図、第２図は同上要部の
一部拡大断面図、第３図は同じく要部の線材を取除いた
状態の部分拡大断面図、第４図は同上のIV−IV線断面図
である。 １……円筒状枠板 ４……支枠 ５……係止溝 ６……線材 ９……スリット孔FIG. 1 is a partially cutaway side view showing an embodiment of a cylindrical element for filtration or separation according to the present invention, FIG. 2 is a partially enlarged sectional view of the same as above, and FIG. FIG. 4 is a partially enlarged sectional view of a state where the wire is removed, and FIG. 4 is a sectional view taken along line IV-IV of the above. 1 ... Cylindrical frame plate 4 ... Support frame 5 ... Locking groove 6 ... Wire rod 9 ... Slit hole
Claims (3)
より他方に向う渦巻状で不連続な係止溝を穿設し、この
係止溝に所望の断面形状に加工した線材の外周端縁を線
材の弾性に抗して湾曲係止し、線材の弾性復元力により
固定させ、前記線材の両端部を固定固着手段で前記円筒
状枠板に係止固定し、隣り合う線材の周縁間に渦巻状の
スリット孔を形成することを特徴とする濾過ないし分離
用円筒状素子の製造方法。Claims: 1. A cylindrical frame plate having a porous structure is provided with spiral discontinuous locking grooves formed from one side to the other on the inner surface, and the locking grooves are formed into a wire having a desired cross-sectional shape. The outer peripheral edge is curved and locked against the elasticity of the wire, and is fixed by the elastic restoring force of the wire, and both ends of the wire are locked and fixed to the cylindrical frame plate by the fixing and fixing means. A method of manufacturing a cylindrical element for filtration or separation, characterized in that a spiral slit hole is formed between peripheral edges.
の環状部材と多数の支枠により形成して成る特許請求の
範囲第１項記載の濾過ないし分離用円筒状素子の製造方
法。2. A method of manufacturing a cylindrical element for filtration or separation according to claim 1, wherein the cylindrical frame plate having a porous structure is formed by two annular members having the same shape and a large number of supporting frames. .
面二等辺三角形状の線材の頂面を係合させて成る特許請
求の範囲第１項記載の濾過ないし分離用円筒状素子の製
造方法。3. A cylindrical shape for filtration or separation according to claim 1, wherein the spiral locking groove is formed in a V-shaped cross section, and the top surface of a wire having an isosceles triangular cross section is engaged with the spiral locking groove. Device manufacturing method.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62097284A JPH0611371B2 (en) | 1987-04-22 | 1987-04-22 | Method for manufacturing cylindrical element for filtration or separation |
| GB8808480A GB2203960B (en) | 1987-04-22 | 1988-04-11 | Filter elements |
| DE3812927A DE3812927A1 (en) | 1987-04-22 | 1988-04-18 | Cylindrical filter and separation element |
| FR8805232A FR2614216B1 (en) | 1987-04-22 | 1988-04-20 | CYLINDRICAL FILTERING AND SEPARATION ELEMENT. |
| KR1019880004596A KR930001599B1 (en) | 1987-04-22 | 1988-04-22 | Tubular type material for filtration |
| CN88102418A CN1011483B (en) | 1987-04-22 | 1988-04-22 | Cylindrical element for filtering and separation |
| US07/661,746 US5190161A (en) | 1987-04-22 | 1991-02-27 | Cylindrical element for filtering and separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62097284A JPH0611371B2 (en) | 1987-04-22 | 1987-04-22 | Method for manufacturing cylindrical element for filtration or separation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63264113A JPS63264113A (en) | 1988-11-01 |
| JPH0611371B2 true JPH0611371B2 (en) | 1994-02-16 |
Family
ID=14188213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62097284A Expired - Fee Related JPH0611371B2 (en) | 1987-04-22 | 1987-04-22 | Method for manufacturing cylindrical element for filtration or separation |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH0611371B2 (en) |
| KR (1) | KR930001599B1 (en) |
| CN (1) | CN1011483B (en) |
| DE (1) | DE3812927A1 (en) |
| FR (1) | FR2614216B1 (en) |
| GB (1) | GB2203960B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5419373A (en) * | 1991-07-25 | 1995-05-30 | May; Clifford H. | Filter support tube for a filter cartridge |
| DE4239664A1 (en) * | 1992-11-26 | 1994-06-01 | Mann & Hummel Filter | Filter assembly for metal particles - resists aggressive fluids and permits easy cleaning by back flush |
| DE19741905C2 (en) * | 1997-09-23 | 2001-04-19 | Kurt Taupadel | Gap filter element and method for its production |
| JP3299709B2 (en) * | 1998-01-09 | 2002-07-08 | 松下電器産業株式会社 | Chloroprene synthetic rubber adhesive composition and method for producing speaker |
| CN1060093C (en) * | 1998-09-10 | 2001-01-03 | 周惠臣 | Ring-shape outward pointed-end tubular filter element with triangular net-wire fixed by external vertical ribs |
| CN1060092C (en) * | 1998-09-10 | 2001-01-03 | 丛安生 | Cylindrical filter cartridge with circular-point outward triangular netting fixed by vertical bars inside |
| GB0122316D0 (en) * | 2001-09-15 | 2001-11-07 | Wedge Wire Screens Ltd | Threaded article |
| WO2007046185A1 (en) * | 2005-10-19 | 2007-04-26 | Arai Machinery Corporation | Perforated member |
| CN105268240B (en) * | 2010-10-07 | 2018-02-02 | 阿迈德水系统有限公司 | Filtering flow unit and system |
| CN102726337B (en) * | 2012-04-09 | 2015-11-18 | 常君斌 | The dirty separator of water |
| CN105964035A (en) * | 2016-06-27 | 2016-09-28 | 江苏中超环保股份有限公司 | Resin catcher |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB450534A (en) * | 1935-07-26 | 1936-07-21 | George William Mensforth | Improvements in and relating to filtering apparatus |
| AT190069B (en) * | 1954-11-09 | 1957-06-11 | Alfred Knecht | Method and device for spooling gap filter bodies |
| DE1902531A1 (en) * | 1969-01-18 | 1970-08-13 | Erno Raumfahrttechnik Gmbh | Signaling device |
| DE2628237A1 (en) * | 1976-06-24 | 1978-01-05 | Gerhard Dipl Ing Dr Ing Kunz | Flow element for liquids and gases - being helical spring coil attached to a mounting with spacers |
| JPS5832275B2 (en) * | 1980-12-11 | 1983-07-12 | 永岡金網株式会社 | screen |
| JPS6025168B2 (en) * | 1982-10-27 | 1985-06-17 | 株式会社荒井鉄工所 | automatic separation system |
| US4569763A (en) * | 1983-08-15 | 1986-02-11 | Arai Machinery Corporation | Wire locking structure for a filter device |
-
1987
- 1987-04-22 JP JP62097284A patent/JPH0611371B2/en not_active Expired - Fee Related
-
1988
- 1988-04-11 GB GB8808480A patent/GB2203960B/en not_active Expired - Fee Related
- 1988-04-18 DE DE3812927A patent/DE3812927A1/en active Granted
- 1988-04-20 FR FR8805232A patent/FR2614216B1/en not_active Expired - Fee Related
- 1988-04-22 KR KR1019880004596A patent/KR930001599B1/en not_active IP Right Cessation
- 1988-04-22 CN CN88102418A patent/CN1011483B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3812927C2 (en) | 1993-05-27 |
| GB2203960A (en) | 1988-11-02 |
| FR2614216A1 (en) | 1988-10-28 |
| KR930001599B1 (en) | 1993-03-06 |
| GB8808480D0 (en) | 1988-05-11 |
| KR880012260A (en) | 1988-11-26 |
| CN88102418A (en) | 1988-11-09 |
| GB2203960B (en) | 1991-07-31 |
| JPS63264113A (en) | 1988-11-01 |
| DE3812927A1 (en) | 1988-11-03 |
| CN1011483B (en) | 1991-02-06 |
| FR2614216B1 (en) | 1993-05-07 |
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