MX9601493A - Ensamble de valvula. - Google Patents
Ensamble de valvula.Info
- Publication number
- MX9601493A MX9601493A MX9601493A MX9601493A MX9601493A MX 9601493 A MX9601493 A MX 9601493A MX 9601493 A MX9601493 A MX 9601493A MX 9601493 A MX9601493 A MX 9601493A MX 9601493 A MX9601493 A MX 9601493A
- Authority
- MX
- Mexico
- Prior art keywords
- stem
- assembled
- housing
- disk
- retainer
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/5109—Convertible
- Y10T137/5196—Unit orientable in a single location between plural positions
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/598—With repair, tapping, assembly, or disassembly means
- Y10T137/6011—Assembling, disassembling, or removing cartridge type valve [e.g., insertable and removable as a unit, etc.]
- Y10T137/6014—Faucet type [e.g., domestic water use, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7504—Removable valve head and seat unit
- Y10T137/7613—Threaded into valve casing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7504—Removable valve head and seat unit
- Y10T137/7668—Retained by bonnet or closure
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86863—Rotary valve unit
- Y10T137/86871—Plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
- Valve Housings (AREA)
- Taps Or Cocks (AREA)
Abstract
Un ensamble de válvula (20) incluye un alojamiento o sombrerete (22) y un vástago (24). El ensamble de válvula (20) incluye además un arandela de presion (26), un anillo de O, 28, un tope reversible (30) y un retenedor (32). Un acoplador (34), un disco de cerámica girable (36), un disco de cerámica fijo (38) y un sello inferior (40) completan los componentes del ensamble de válvula (30). El disco girable (36) es ensamblado mediante un ajuste hermético con el acoplador (34) que a su vez es ensamblado con una barra impulsora (90) del vástago (24) mediante un ajuste hermético. El vástago ensamblado, el acoplador (34) y el disco girable (36) son ensamblados dentro de un agujero (52) del alojamiento (22), con una porcion de mango (74) del vástago (24) extendiéndose hacia afuera desde una abertura (56) del alojamiento (22). El disco fijo (38) es ensamblado fijamente dentro del agujero (52) del alojamiento (22) en acoplamiento de frente con el disco girable (36). El sello (40) es ensamblado dentro de una abertura (54) del alojamiento y es colocado en acoplamiento sellable y de retencion con el disco fijo (38). El retenedor (32) se coloca sobre la porcion de mango expuesta (74) del vástago (24) y el tope reversible (30) es movido sobre la porcion de mango (74) y más allá del retenedor (32) para acoplarse con las ranuras (82) sobre la porcion de mango. El retenedor (32) evita la remocion no intencional del tope (30) del vástago (24) mientras permite la remocion intencional del mismo.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/546,640 US5681028A (en) | 1995-10-23 | 1995-10-23 | Valve assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9601493A true MX9601493A (es) | 1997-04-30 |
Family
ID=24181339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9601493A MX9601493A (es) | 1995-10-23 | 1996-04-19 | Ensamble de valvula. |
Country Status (6)
Country | Link |
---|---|
US (4) | US5681028A (es) |
EP (1) | EP0770804A3 (es) |
KR (1) | KR970021870A (es) |
CA (1) | CA2181652C (es) |
MX (1) | MX9601493A (es) |
TW (1) | TW310021U (es) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5681028A (en) * | 1995-10-23 | 1997-10-28 | Emhart Inc. | Valve assembly |
JP3582055B2 (ja) * | 1999-01-27 | 2004-10-27 | 日本サーモスタット株式会社 | サーモスタットの取り付け構造 |
JP3284407B2 (ja) | 1999-01-27 | 2002-05-20 | 日本サーモスタット株式会社 | 冷却媒体の流れ制御方法およびその装置 |
AT408025B (de) * | 1999-07-20 | 2001-08-27 | Ideal Standard | Sanitäres mischventil |
US6123105A (en) * | 1999-08-11 | 2000-09-26 | Yang; Tsai Chen | Valve for mixing cold and hot water |
IT1319940B1 (it) * | 2000-03-07 | 2003-11-12 | Gevipi Ag | Dispositivo per favorire l'unificazione costruttiva di cartucce perapparecchi idraulici. |
DE20022320U1 (de) * | 2000-03-08 | 2001-07-26 | ANTON TRÄNKLE GMBH & CO KG, 78098 Triberg | Dichtungseinrichtung für ein Ventiloberteil, insbesondere für Wasserarmaturen |
US6382229B1 (en) * | 2000-12-08 | 2002-05-07 | Emhart Llc | Valve assembly and seal therefor |
US6640390B1 (en) * | 2002-04-05 | 2003-11-04 | Hung-Lin Lai | Structure for confining a valve knob |
KR20040040807A (ko) * | 2002-11-08 | 2004-05-13 | 박숙진 | 스톱밸브용 세라믹 디스크형 개폐카트리지 |
US7007717B2 (en) * | 2003-08-01 | 2006-03-07 | Globe Union Industrial Corp. | Spindle structure for a ceramic faucet |
US6988512B1 (en) * | 2003-10-01 | 2006-01-24 | Hsiang-Shih Wang | Valves stem structure of fluid control valve |
US7178786B2 (en) * | 2003-11-21 | 2007-02-20 | Brass-Craft Manufacturing Company | Stem construction for rotatable valve body |
US20050205144A1 (en) * | 2004-03-18 | 2005-09-22 | Rosas Richard L | Cartridge retrievable flow control valve |
KR100455360B1 (ko) * | 2004-05-07 | 2004-11-09 | 주식회사 한성시스코 | 냉난방배관용 전동밸브 |
US7134450B2 (en) * | 2005-03-07 | 2006-11-14 | Chung Cheng Faucet Co., Ltd. | Interior structure of water control valve for faucets |
US7461669B2 (en) * | 2005-04-08 | 2008-12-09 | Masco Corporation Of Indiana | Seat keeper |
US7331359B2 (en) * | 2005-04-19 | 2008-02-19 | Kohler Co. | Valve with bi-loading seal |
US7686028B2 (en) * | 2006-11-17 | 2010-03-30 | Hung-Neng Wu | Structure of straight-out controllable ceramic valve of anti-freezing faucet |
US7967005B2 (en) | 2007-04-13 | 2011-06-28 | Daniel Parrish | Dual fuel gas valve and gas grill |
US8840349B2 (en) * | 2007-04-20 | 2014-09-23 | Fisher Controls International, Llc | Multi-tool adjusting screw |
US7581685B2 (en) * | 2007-07-19 | 2009-09-01 | Christian Belisle | Faucet end piece |
TWM324731U (en) * | 2007-08-06 | 2008-01-01 | Home Faucets Entpr Corp | Faucet |
US20090266431A1 (en) * | 2008-04-28 | 2009-10-29 | Kuching International Co., Ltd. | Spool with two-sided effluent |
EP2304290A4 (en) * | 2008-06-20 | 2013-01-23 | Masco Corp | VALVE ASSEMBLY FOR TWO-GRIP VALVE |
BRPI0914760A2 (pt) | 2008-06-25 | 2015-10-20 | Masco Corp | torneira expandida |
CA2727077C (en) | 2008-06-25 | 2013-10-01 | Masco Corporation Of Indiana | Centerset faucet with mountable spout |
US8079382B2 (en) * | 2009-11-16 | 2011-12-20 | Cheng-Hsuan Wu | Unfreeze faucet structure |
US20110114864A1 (en) * | 2009-11-16 | 2011-05-19 | Cheng-Hsuan Wu | Watering Control Valve |
US9376789B2 (en) | 2011-03-08 | 2016-06-28 | As Ip Holdco, Llc | Quick connection coupling |
US8739826B2 (en) | 2011-03-11 | 2014-06-03 | Masco Corporation Of Indiana | Centerset faucet body and method of making same |
WO2012125506A2 (en) | 2011-03-11 | 2012-09-20 | Masco Corporation Of Indiana | Flow control valve |
US9441750B2 (en) * | 2011-04-26 | 2016-09-13 | Grohe Ag | Valve cartridge |
US10260642B2 (en) * | 2011-04-26 | 2019-04-16 | As Ip Holdco, Llc | Faucet valve cartridge |
US20120305117A1 (en) * | 2011-06-06 | 2012-12-06 | Tsung-Min Huang | Lead-free valve of faucet and process of manufacturing same |
BR112014003234A2 (pt) | 2011-08-24 | 2017-03-01 | As Ip Holdco L L C | montagem de torneira de difusão, kit para instalação de uma montagem de torneira de difusão, método para instalação de uma montagem de torneira de difusão, montagem de válvula e montagem de porca autorrotativa |
DE102011084837A1 (de) * | 2011-10-20 | 2013-04-25 | Hansgrohe Se | Ventilkartusche für eine Sanitärarmatur |
US8931500B2 (en) | 2012-02-17 | 2015-01-13 | Masco Corporation Of Indiana | Two handle centerset faucet |
USD745637S1 (en) | 2013-03-22 | 2015-12-15 | Wd Racing Oy | Valve disk |
CN204328076U (zh) * | 2014-11-25 | 2015-05-13 | 厦门建霖工业有限公司 | 净水阀芯结构 |
CA3025934C (en) * | 2016-06-02 | 2021-05-11 | Component Hardware Group, Inc. | Valve for a faucet assembly |
US10753075B2 (en) | 2016-09-26 | 2020-08-25 | Zurn Industries, Llc | Flush valve |
US10578228B2 (en) | 2016-09-26 | 2020-03-03 | Zurn Industries, Llc | Sensing mechanism for valve operation |
US10641410B2 (en) | 2017-02-09 | 2020-05-05 | Beijingwest Industries Co., Ltd. | Pneumatic valve for air suspension systems |
US10385978B2 (en) | 2017-10-21 | 2019-08-20 | Hector Hernandez | Cartridge assembly for regulating flows |
DE102018107608A1 (de) * | 2018-03-29 | 2019-10-02 | Grohe Ag | Ventilkartusche für eine Sanitärarmatur mit umstellbarer Schließrichtung |
HUE051410T2 (hu) * | 2018-07-02 | 2021-03-01 | Fluehs Drehtechnik Gmbh | Felsõ szeleprész |
EP3828129A4 (en) * | 2018-07-26 | 2022-03-09 | Kagura Feast Corp. | DONOR AND COCK |
US11274761B2 (en) | 2018-09-06 | 2022-03-15 | Kohler Co. | Faucet with integrated valve |
US20200149253A1 (en) * | 2018-11-13 | 2020-05-14 | Greatness Sanitary Industrial Co., Ltd | Rotary control structure for water valve |
USD883444S1 (en) | 2018-12-04 | 2020-05-05 | Zurn Industries, Llc | Flush valve housing |
US11384851B2 (en) | 2019-10-08 | 2022-07-12 | Hector Hernandez | Cartridge assembly for diverting flow |
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US3780758A (en) * | 1972-11-15 | 1973-12-25 | Wolverine Brass Works Ind Inc | Non-metallic cartridge valve |
US3807455A (en) * | 1973-03-19 | 1974-04-30 | Elkay Mfg Co | Replaceable cartridge for faucets |
US3829693A (en) * | 1973-10-03 | 1974-08-13 | Barnes Eng Co | Dual field of view intrusion detector |
US3831621A (en) * | 1973-11-19 | 1974-08-27 | Union Brass & Metal Mfg | Rotary slide valve |
US3913612A (en) * | 1974-12-16 | 1975-10-21 | Price Pfister Brass Mfg | Eccentric shear seal cartridge valve |
EP0019952B1 (en) * | 1979-05-04 | 1984-07-18 | Masco Corporation Of Indiana | Single-control mixing cock with plates made of hard material |
US4331176A (en) * | 1980-03-03 | 1982-05-25 | American Standard Inc. | Replaceable cartridge valve assembly |
US4397330A (en) * | 1981-08-19 | 1983-08-09 | United States Brass Corporation | Mixing valve for back to back installation |
US4462568A (en) * | 1982-03-15 | 1984-07-31 | Xomox Corporation | Valve construction and method of making the same |
DE3244120A1 (de) * | 1982-11-29 | 1984-05-30 | Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer | Dichtung oder anschlussdichtung fuer sanitaere mischventile |
US4611788A (en) * | 1983-06-15 | 1986-09-16 | Bruce J. Oliver | Combination seat and seal device |
US4823832A (en) * | 1984-07-11 | 1989-04-25 | Harden Industries, Inc. | Cartridge valve |
US4678002A (en) * | 1985-05-10 | 1987-07-07 | Valley Harold J | Faucet valve with adjustable stem tightener |
NZ216420A (en) * | 1985-06-13 | 1987-04-30 | Dorf Ind Pty Ltd | Replacement top for screw down tap: adjustment nut allows axial adjustment in permanent sealing of tap assembly to seat in tap body |
US4651770A (en) * | 1986-03-28 | 1987-03-24 | Speakman Company | Ceramic disc faucet valve |
ES2013753B3 (es) * | 1986-09-12 | 1990-06-01 | Fluehs Drehtechnik Gmbh | Cierre para valvula. |
DE3784352T2 (de) * | 1987-06-25 | 1993-06-09 | Masco Corp | Umkehrbare bodenventil-kartusche mit einer ausrichtvorrichtung. |
US4793375A (en) * | 1987-07-16 | 1988-12-27 | Masco Corporation Of Indiana | Faucet valve cartridge |
DE3827469A1 (de) * | 1987-08-14 | 1989-02-23 | Dorf Ind Pty Ltd | Dichtungsring fuer haehne |
CH673693A5 (es) * | 1987-09-11 | 1990-03-30 | Kugler Fonderie Robinetterie | |
US4966186A (en) * | 1988-01-20 | 1990-10-30 | Harden Industries, Inc. | Cartridge valve |
CH675759A5 (es) * | 1988-01-27 | 1990-10-31 | Karrer Weber & Cie Ag | |
US4821765A (en) * | 1988-06-10 | 1989-04-18 | Kohler Co. | Valve for faucet or the like |
DE3828178A1 (de) * | 1988-08-19 | 1990-02-22 | Grohe Armaturen Friedrich | Absperr- und regulierventil |
DE3829693A1 (de) * | 1988-09-01 | 1990-03-08 | Eggenfelder Aluminiumoxyd Kera | Mengenregulierventil fuer insbes. sanitaerarmaturen |
FR2644217A1 (fr) * | 1989-03-07 | 1990-09-14 | Procal | Joint d'etancheite statique |
US4903725A (en) * | 1989-03-30 | 1990-02-27 | Ko Hsi Chia | Faucet valve assembly having a flow buffer disk |
GB2228985B (en) * | 1989-04-04 | 1993-07-21 | Galatron Srl | 'breech-block' tap for the supply of cold or hot water with ceramic sealing plates |
US5050633A (en) * | 1989-06-19 | 1991-09-24 | Emhart Inc. | Fluid valve |
JPH0386446A (ja) * | 1989-08-25 | 1991-04-11 | Fanuc Ltd | ならい制御装置 |
US5103857A (en) * | 1989-10-18 | 1992-04-14 | Kohler Co. | Self closing valve assembly |
US4966187A (en) * | 1989-11-07 | 1990-10-30 | Wah Men Shun | Valve body concerning the bathtub cold/hot water valve |
IT1236011B (it) * | 1989-11-08 | 1992-12-15 | Galatron Srl | Valvola tipo vitone con tenuta a piastrine ceramiche |
IT222220Z2 (it) * | 1989-11-08 | 1995-02-01 | Galatron Srl | Coppia di piastrine per controllare l'erogazione di fluido in valvole tipo vitone |
IT1241171B (it) * | 1990-02-13 | 1993-12-29 | Studio Tecnico Sviluppo E Ricerche S.T.S.R. S.R.L. | Piastrina fissa per rubinetto idraulico, con mezzi per l'eliminazione dei detriti |
US5010917A (en) * | 1990-04-02 | 1991-04-30 | Kohler Co. | Fluid control valve |
US5174324A (en) * | 1991-01-22 | 1992-12-29 | Amerikam | Ceramic valve |
DE4101836A1 (de) * | 1991-01-23 | 1992-07-30 | Traenkle Anton Kg | Ventiloberteil |
DE4212236A1 (de) * | 1992-04-11 | 1993-10-14 | Grohe Armaturen Friedrich | Regel- und Absperrventil |
US5365978A (en) * | 1992-07-27 | 1994-11-22 | Baker Hughes Incorporated | Top entry flow control valve with two sets of orifices |
US5355906A (en) * | 1992-07-28 | 1994-10-18 | Masco Corporation Of Indiana | Pressure balanced mixing valve |
US5398717A (en) * | 1994-04-15 | 1995-03-21 | Kohler Co. | Fluid valve |
US5681028A (en) * | 1995-10-23 | 1997-10-28 | Emhart Inc. | Valve assembly |
-
1995
- 1995-10-23 US US08/546,640 patent/US5681028A/en not_active Expired - Fee Related
- 1995-11-03 TW TW085218614U patent/TW310021U/zh unknown
-
1996
- 1996-04-19 MX MX9601493A patent/MX9601493A/es unknown
- 1996-07-19 CA CA002181652A patent/CA2181652C/en not_active Expired - Fee Related
- 1996-09-16 EP EP96306710A patent/EP0770804A3/en not_active Withdrawn
- 1996-09-24 KR KR1019960041865A patent/KR970021870A/ko not_active Application Discontinuation
-
1997
- 1997-02-26 US US08/807,851 patent/US5924676A/en not_active Expired - Lifetime
- 1997-02-26 US US08/807,850 patent/US5832952A/en not_active Expired - Lifetime
-
1998
- 1998-01-23 US US09/012,795 patent/US6073647A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5832952A (en) | 1998-11-10 |
US5681028A (en) | 1997-10-28 |
EP0770804A3 (en) | 1999-01-20 |
CA2181652C (en) | 2007-10-02 |
US6073647A (en) | 2000-06-13 |
US5924676A (en) | 1999-07-20 |
EP0770804A2 (en) | 1997-05-02 |
KR970021870A (ko) | 1997-05-28 |
CA2181652A1 (en) | 1997-03-29 |
TW310021U (en) | 1997-07-01 |
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