SG80672A1 - Reverse flow prevention apparatus - Google Patents

Reverse flow prevention apparatus

Info

Publication number
SG80672A1
SG80672A1 SG200000608A SG200000608A SG80672A1 SG 80672 A1 SG80672 A1 SG 80672A1 SG 200000608 A SG200000608 A SG 200000608A SG 200000608 A SG200000608 A SG 200000608A SG 80672 A1 SG80672 A1 SG 80672A1
Authority
SG
Singapore
Prior art keywords
reverse flow
prevention apparatus
flow prevention
reverse
prevention
Prior art date
Application number
SG200000608A
Other languages
English (en)
Inventor
Ochiai Masaru
Matsuura Nobuyuki
Katou Makoto
Original Assignee
Kane Kougyou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kane Kougyou Co Ltd filed Critical Kane Kougyou Co Ltd
Publication of SG80672A1 publication Critical patent/SG80672A1/en

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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/2617—Bypass or relief valve biased open
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/2622—Bypass or relief valve responsive to pressure downstream of outlet valve
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/263—Plural sensors for single bypass or relief valve
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
  • Lift Valve (AREA)
SG200000608A 1999-06-29 2000-02-03 Reverse flow prevention apparatus SG80672A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18327599A JP3162037B2 (ja) 1999-06-29 1999-06-29 逆流防止装置

Publications (1)

Publication Number Publication Date
SG80672A1 true SG80672A1 (en) 2001-05-22

Family

ID=16132816

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200000608A SG80672A1 (en) 1999-06-29 2000-02-03 Reverse flow prevention apparatus

Country Status (11)

Country Link
US (1) US6178998B1 (de)
JP (1) JP3162037B2 (de)
KR (1) KR100564111B1 (de)
CN (1) CN1162763C (de)
AU (1) AU777491B2 (de)
DE (1) DE10029656B4 (de)
FR (1) FR2795800B1 (de)
GB (1) GB2351546B (de)
HK (1) HK1033687A1 (de)
SG (1) SG80672A1 (de)
TW (1) TW418295B (de)

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DE10214747A1 (de) * 2002-04-03 2003-10-16 Sasserath & Co Kg H Ventilanordnung für einen Rohrtrenner
PL359448A1 (en) * 2002-04-03 2003-10-06 Hans Sasserath & Co Kg Set of isolating valves for water supply system
SE524503C2 (sv) * 2002-06-20 2004-08-17 Durgo Ab Ventilanordning för att förhindra återströmning av en kontaminerad vätska
US6959724B2 (en) * 2002-07-01 2005-11-01 Praxair Technology, Inc. Multiple regulator vacuum delivery valve assembly
DE20218121U1 (de) * 2002-11-22 2003-03-27 Vollmer, Rudolf, 74821 Mosbach Systemtrenner
DE10311252B3 (de) * 2003-03-14 2004-12-09 Alfred Kärcher GmbH & Co KG Rückflussverhinderer
DE10335379B9 (de) * 2003-07-28 2005-03-24 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
DE10335380B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
DE102004044850B3 (de) * 2004-09-10 2006-06-22 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
WO2007058484A1 (en) * 2005-11-18 2007-05-24 Aon Instrument Co., Ltd. Valve for preventing reverse-flow
JP5539711B2 (ja) * 2006-03-21 2014-07-02 ディクソン，マイケル，パトリック 流体作動式バルブ
DE102007006285A1 (de) * 2007-02-01 2008-08-07 Alfred Kärcher Gmbh & Co. Kg Rückflussverhinderer
DE202007019441U1 (de) 2007-02-01 2012-08-09 Alfred Kärcher Gmbh & Co. Kg Rückflussverhinderer
GB2448670B (en) * 2007-04-28 2009-06-17 Baxi Heating Uk Ltd Valve assembly
ITMI20090223U1 (it) 2009-07-02 2011-01-03 Caleffi Spa Dispositivo valvolare di sconnessione idraulica in materiale plastico
CN102147026A (zh) * 2010-02-10 2011-08-10 天津市国威给排水设备制造有限公司 微型倒流防止器
CN102062243A (zh) * 2010-12-21 2011-05-18 芜湖盛力制动有限责任公司 一种汽车及工程机械制动***的溢流阀
CN102322541B (zh) * 2011-09-02 2013-08-28 陈银周 低阻力倒流防止器
CN103291979B (zh) * 2012-02-28 2016-04-20 上海航天动力科技工程有限公司 低开启压力、低流阻、可靠止回的倒流防止器
CN103016798A (zh) * 2012-12-08 2013-04-03 中国航天科技集团公司第六研究院第十一研究所 串联双阀芯高压冗余密封单向阀
CN104315205A (zh) * 2014-10-23 2015-01-28 天津市国威给排水设备制造有限公司 一种防滴漏倒流防止阀
SE541730C2 (en) * 2015-07-02 2019-12-03 3Eflow Ab A fluid stop valve unit
US9429956B1 (en) * 2016-04-19 2016-08-30 Petrotechnologies, Inc Modular check valve system
CN105987207B (zh) * 2016-05-27 2018-03-27 杭州春江阀门有限公司 微阻力减压型倒流防止器
CN106051232B (zh) * 2016-07-12 2018-08-24 上海空间推进研究所 一种适用于大流量工作范围的单向阀及其工作方法
WO2018230159A1 (ja) * 2017-06-15 2018-12-20 株式会社鷺宮製作所 電動弁および冷凍サイクルシステム
KR102052817B1 (ko) * 2018-03-21 2019-12-05 서천석 샤워호스용 역류 방지유닛
CN112128431B (zh) * 2019-06-25 2021-08-20 宁波方太厨具有限公司 单向阀及应用有该单向阀的燃气热水器
CN110715058B (zh) * 2019-10-10 2021-08-27 北京特种机械研究所 一种带载可调电比例大流量单向节流阀
RU2744620C1 (ru) * 2020-08-11 2021-03-12 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Клапан обратный
KR102644731B1 (ko) * 2023-03-03 2024-03-06 백용호 습도 유지 기능이 구비된 29kV 가스절연 개폐기 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132666A (en) * 1990-09-17 1992-07-21 Travel-Ad, Inc. Vehicle-mounted electronic display system
GB2281460A (en) * 1993-08-25 1995-03-01 Lti Limited Sign failure detection particularly for a taximeter
JPH09115012A (ja) * 1995-10-16 1997-05-02 Yoshiaki Masuno Ｇｐｓ付タクシーメータおよびその運用方法
FR2768877A1 (fr) * 1997-09-24 1999-03-26 Medium Sl Systeme d'affichage avec diffusion sans fil de messages vers des moyens d'affichage .
WO2000026062A1 (en) * 1998-11-03 2000-05-11 Adapt Media, Inc. Mobile display system

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US2892464A (en) * 1944-11-07 1959-06-30 Harry H Glass Back flow preventer
US2503424A (en) * 1945-01-15 1950-04-11 Leonard L Snyder Backflow preventer
US2706488A (en) * 1950-11-30 1955-04-19 Hersey Mfg Company Anti-back-flow device
US3818929A (en) * 1973-04-23 1974-06-25 H Braukmann Reduced pressure backflow preventer valve
CH571673A5 (de) * 1973-04-23 1976-01-15 Braukmann Armaturen
DE2414893C2 (de) * 1974-03-28 1985-01-17 Honeywell-Braukmann GmbH, 6950 Mosbach Rückflußverhinderer
US4013089A (en) * 1975-09-17 1977-03-22 Braukmann Armaturen Ag Back flow preventer valve
US4190071A (en) * 1977-09-12 1980-02-26 International Telephone And Telegraph Corporation Backflow prevention devices
US4232704A (en) * 1978-03-28 1980-11-11 Amtrol Inc. In line back flow preventer
WO1989011611A1 (en) * 1988-05-18 1989-11-30 Valvtec Pty Ltd Backflow preventer valve
US5148828A (en) * 1991-03-29 1992-09-22 The Ford Meter Box Co., Inc. Check valve assembly
JPH0645112Y2 (ja) * 1991-08-22 1994-11-16 株式会社清水合金製作所 定流量弁
JPH0579572A (ja) * 1991-09-20 1993-03-30 Hitachi Ltd 高圧ガス逆流防止弁
KR950002532B1 (ko) * 1991-11-22 1995-03-21 키요하라 마사코 라인체크밸브
JPH05164258A (ja) * 1991-12-06 1993-06-29 Benkan Corp チャッキ弁
WO1995000784A1 (en) * 1993-06-23 1995-01-05 Valvtec Pty. Ltd. Reduced pressure zone backflow prevention valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132666A (en) * 1990-09-17 1992-07-21 Travel-Ad, Inc. Vehicle-mounted electronic display system
GB2281460A (en) * 1993-08-25 1995-03-01 Lti Limited Sign failure detection particularly for a taximeter
JPH09115012A (ja) * 1995-10-16 1997-05-02 Yoshiaki Masuno Ｇｐｓ付タクシーメータおよびその運用方法
FR2768877A1 (fr) * 1997-09-24 1999-03-26 Medium Sl Systeme d'affichage avec diffusion sans fil de messages vers des moyens d'affichage .
WO2000026062A1 (en) * 1998-11-03 2000-05-11 Adapt Media, Inc. Mobile display system

Also Published As

Publication number Publication date
GB2351546A (en) 2001-01-03
KR100564111B1 (ko) 2006-03-27
KR20010014725A (ko) 2001-02-26
FR2795800B1 (fr) 2005-02-25
GB0005601D0 (en) 2000-05-03
JP3162037B2 (ja) 2001-04-25
US6178998B1 (en) 2001-01-30
CN1279370A (zh) 2001-01-10
CN1162763C (zh) 2004-08-18
AU777491B2 (en) 2004-10-21
DE10029656A1 (de) 2001-01-04
TW418295B (en) 2001-01-11
DE10029656B4 (de) 2007-08-23
GB2351546B (en) 2003-09-24
HK1033687A1 (en) 2001-09-14
AU2227600A (en) 2001-01-04
FR2795800A1 (fr) 2001-01-05
JP2001012629A (ja) 2001-01-16

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