JP4837616B2 - フィルタスクリーンを修理または刷新するための装置 - Google Patents
フィルタスクリーンを修理または刷新するための装置 Download PDFInfo
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- JP4837616B2 JP4837616B2 JP2007102002A JP2007102002A JP4837616B2 JP 4837616 B2 JP4837616 B2 JP 4837616B2 JP 2007102002 A JP2007102002 A JP 2007102002A JP 2007102002 A JP2007102002 A JP 2007102002A JP 4837616 B2 JP4837616 B2 JP 4837616B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
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- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
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- 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
- B01D29/01—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 flat filtering elements
- B01D29/012—Making filtering elements
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- 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
- B01D29/01—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 flat filtering elements
- B01D29/05—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 flat filtering elements supported
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/445—Bar screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/56—Tensioning reinforcements before or during shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/82—Forcing wires, nets or the like partially or completely into the surface of an article, e.g. by cutting and pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
- B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C2045/14442—Coating a portion of the article, e.g. the edge of the article injecting a grill or grid on the insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/14—Filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T29/49826—Assembling or joining
- Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Combined Means For Separation Of Solids (AREA)
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
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- Filtration Of Liquid (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
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Description
本発明は、石油掘削産業において石油の液相および掘削作業によって回収した泥水から固体を分離するために使用される、起振機といった振動フィルタ装置においてフィルタとして使用するためのスクリーンに関する。特に、本発明は支持フレームの構造および製造ならびにこうしたフレームの再利用に関し、この支持フレームの上に織ったすき網(wire
cloth)のようなフィルタ材料を広げて固定してスクリーンを形成するものである。
上記のようなスクリーンを用いるフィルタマシンの例は、GB 2237521およびGB 2229771に挙げられている。
本発明のある局面に従うと、織ったすき網を広げて固定して篩い分けスクリーンを形成する際にその下になるポリマ支持フレームを構成するための方法は、強化ワイヤからなる2つの並列する間隔がおかれたアレイを含むワイヤフレームアセンブリをモールド器具の中に配置するステップと、器具を閉じるステップと、液体ポリマを注入してワイヤフレーム全体を包み、剛性のフランジによりすべての側面を囲まれた直交するリブが交差する開放された中央領域を有する物品を形成するステップとを含み、各々のリブは上記ワイヤフレームアセンブリの2つの並列する間隔がおかれたワイヤを含み、ポリマ支持フレームを構成するための方法はさらに、ポリマを硬化させるステップと、器具を開放するステップと、成形された物品を取出すステップとを含む。
カット長のワイヤをジグにおいて等間隔で配置して第1のアレイを形成するステップと、
その上に第1のアレイに対して直角に、カット長のワイヤの第2のアレイを等間隔で配置するステップと、
2つのアレイのワイヤをすべての交差点において抵抗溶接して第1の直線で囲まれたマトリクスを形成し、同様のカット長のワイヤの2つの同様のアレイをジグに同様に位置決めし、直交するワイヤの交差点を抵抗溶接して第2の同様の直線で囲まれたマトリクスを形成するステップと、
直線で囲まれたマトリクスの1方の4つの側面のうち少なくとも2つでワイヤの突出した長さをプレスブレーキで曲げて、各突出した部分を初めにほぼ上方向に曲げ次にその端部に近いポイントで下向きに曲げて、各突出した長さの端部領域がマトリクスを含む面と並列して延在するがそこからはずれているようにするステップと、
その後上記1方のマトリクスの突出したワイヤのずらされた端部を、他方のマトリクスのワイヤの突出した端部に抵抗溶接するステップとを含む。
モールド器具を開放し突出したペッグを支柱から外した後、ポリマには開口部が残る。したがって好ましくは、この方法はさらに、開口部をプラスチック材料または充填材で塞ぐことを含む。
好都合なことに、ピンは構成物を構成しているワイヤの突き出した端部と整列し、プラスチック材料のスリーブによりワイヤの端部に切離し可能に接合され、対向する端部は、ピンおよび強化ワイヤ端部をそれぞれ受ける。
差別的に引張ることによって、ポリマ支持フレームに接着した後に2つのすき網のワイヤに異なる張力が生じるようにするステップを含んでもよい。
、この支持フレームにおいて、支柱のすき網係合端部の厚みは、より遠い支柱の領域の端部の厚みよりも小さい。
ショルダを規定することにより(または対向する側面の2つの段差によりショルダを形成することにより)可能であり、ショルダ上方の幅が減じられた領域は、すき網と係合するための幅が減じられたプラスチック面をもたらす。こうした配置と三角形のうねとの相違点は、前者の場合は、接着された最頂部の左または右すぐ近くの織られたすき網の下側が少なくともショルダまでは完璧に妨げられず、一方三角形のうねの場合、斜めの面はすき網を通して液体のろ過に用いられる。しかしながら実際には、より強い三角形の部分が好ましく、これは特に熱を最頂部に加えたときにうねの高さまで差別的な軟化が生じるからである。
上記のような支持フレームのためのワイヤフレームアセンブリにおいて、ワイヤの端部間に中間で横切るように延在する充填ワイヤまたは溶接ワイヤを取入れることにより、フランジにおいて並列するワイヤ間に交差点係合を導入してもよい。
図面の詳細な説明
図1は、あるフレームを示し、このフレームに、本明細書において述べる態様で織ったすき網のメッシュを張り渡して接着する。このフレームは包括的に10で示され、多数の同じような大きさの矩形の開口部を含み、その1つは12で示されており直交する部材からなり直線で囲まれたマトリクスにより形成され、直交する部材の1つは14で示されもう1つは参照番号16で示される。
料が冷えた場合に、残余の張力は広げられたすき網の層に残るであろう。通常好まれるようにもしすき網を差別的に引張って一方における張力が他方における張力よりも大きくなるようにすれば、その差はすき網に保持された残余の張力にあらわれるであろう。
この係合の詳細は図10に示してある。図9は、一般的に68で示した突出部分を含むエッジ28を示しており、この突出部分はフレームの幅にわたって延在し、協働するフレーム10のリベート74のショルダ80の下方に嵌められる。
図12、13および14は、図11に示したフレームの端面および断面図であり、図14の場合は拡大してある。
ことができるようになっている。この対向する端部は、上面に形成された3つのうね126を有して延在するフランジ124を含み、フランジ124の厚みと併せたフランジの高さは上下のつかみ具120および122間の内側の間隔と等しいため、端部124を1対のつかみ具120および122によって形成される長いスロットに押込むことができる。
成形後にサポート挿入物またはフェルールが突出する場合、切断またはやすりがけによって除去することができる。
な領域156を露出させるのみである(図20参照)。
封止うね76が溝74の上に見えており、ここに長い雄型の「突出部」68(図9参照)が嵌められる。
好都合なことには溶接ワイヤが参照番号49で示したように、48、66(図3参照)などの上にある並列ロッド間で用いられる。
Claims (2)
- フィルタスクリーンを修理または刷新するための装置であって、前記フィルタスクリーンは、ガラス強化プラスチック材料から形成された支持フレーム内において支柱のマトリクスを含み、前記支持フレームは、間隔を密にして設けられた複数の並列するうねが形成された周辺エッジ領域を有し、前記周辺エッジ領域に、張力が加えられた織ったすき網が加熱によって接着され、張力が加えられた織ったすき網は、使用時に磨耗する可能性があり、そのときは、前記フレームから剥がされて前記フレームを修理または刷新できるようにし、前記装置は、
(1)前記磨耗したすき網が剥がされたフィルタスクリーン支持フレームを収容するためのトレイと、
(2)前記トレイを囲むすき網張り渡し手段とを含み、前記すき網張り渡し手段は、
前記トレイ内の前記剥がされたフレームの上面の上に置かれた第1のすき網のシートのエッジに固定されるための第1の取付手段と、
前記第1のすき網のシートに対し、前記第1のすき網のシートが前記フレームの上に張り渡されている間に、張力を少なくとも2つの異なる方向に加えるための第1の引張手段とを含み、
(3)前記フレームを加熱し、前記フレームの前記周辺エッジ領域および前記フレーム内の前記支柱のマトリクスの最上部のエッジを軟化させるための加熱手段と、
(4)前記第1のすき網のシートを前記軟化したエッジの中に強制的に入れるための強制手段とを含み、前記フレームの前記軟化した領域の冷却後、前記第1のすき網のシートは前記フレームに接着したままであり、前記フレームを超えて延在する前記第1のすき網のシートのエッジは前記フレームのエッジに合わせて切取ることができ、前記フレームに接着された前記第1のすき網のシートのワイヤの張力は維持され、
(5)前記すき網張り渡し手段はさらに、第2の取付手段と第2の引張手段とを含み、前記第2の取付手段および前記第2の引張手段は、少なくとも第2のすき網のシートを、前記第1のすき網のシートがフレームに接着されるのと同時に前記フレームに接着するために、前記第2のすき網のシートを前記第1のすき網のシートの上に固定できるようにし、それにより、使用時に、前記第1のすき網のシートおよび前記第2のすき網のシートからなる2つのすき網のシートの張力を異ならせることができるとともに、異なる残留張力を前記フレームへの接着後に前記2つのすき網のシートに残すことができる、装置。 - プラスチック材料を、前記第1のすき網のシートおよび前記第2のすき網のシートが取付けられる表面各々に沿って、前記第1のすき網のシートおよび前記第2のすき網のシートが前記支持フレームの上に張り渡される前またはその後に与え、前記第1のすき網のシートおよび前記第2のすき網のシートを前記フレームに接着するのに利用できるプラスチック材料の量を増すための手段が与えられる、請求項1に記載の装置。
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GB9704332.7 | 1997-03-01 | ||
GB9704332A GB9704332D0 (en) | 1997-03-01 | 1997-03-01 | Improved screen |
GB9719850.1 | 1997-09-19 | ||
GB9719850A GB9719850D0 (en) | 1997-09-19 | 1997-09-19 | Improved filtering screen and support frame therefor |
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JP2007101997A Expired - Fee Related JP4869132B2 (ja) | 1997-03-01 | 2007-04-09 | フィルタスクリーンを修理または刷新する方法および修理または刷新されたフィルタスクリーン |
JP2007102002A Expired - Fee Related JP4837616B2 (ja) | 1997-03-01 | 2007-04-09 | フィルタスクリーンを修理または刷新するための装置 |
JP2007101995A Expired - Fee Related JP4586037B2 (ja) | 1997-03-01 | 2007-04-09 | 改良されたフィルタスクリーンおよびそのための支持フレーム |
JP2007101992A Expired - Fee Related JP4799467B2 (ja) | 1997-03-01 | 2007-04-09 | 強化ワイヤフレームおよびその作製方法 |
JP2007101989A Expired - Fee Related JP4850115B2 (ja) | 1997-03-01 | 2007-04-09 | 支持フレームを構成する方法 |
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JP2007101997A Expired - Fee Related JP4869132B2 (ja) | 1997-03-01 | 2007-04-09 | フィルタスクリーンを修理または刷新する方法および修理または刷新されたフィルタスクリーン |
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JP2007101992A Expired - Fee Related JP4799467B2 (ja) | 1997-03-01 | 2007-04-09 | 強化ワイヤフレームおよびその作製方法 |
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2001
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