IT1110763B - Dispositivo per impedire il riflusso in linea - Google Patents
Dispositivo per impedire il riflusso in lineaInfo
- Publication number
- IT1110763B IT1110763B IT1952579A IT1952579A IT1110763B IT 1110763 B IT1110763 B IT 1110763B IT 1952579 A IT1952579 A IT 1952579A IT 1952579 A IT1952579 A IT 1952579A IT 1110763 B IT1110763 B IT 1110763B
- Authority
- IT
- Italy
- Prior art keywords
- reflux
- prevent
- line
- Prior art date
Links
Classifications
-
- 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
-
- 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
- Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
- Y10T137/3185—Air vent in liquid flow line
- Y10T137/3294—Valved
- Y10T137/3331—With co-acting valve in liquid flow path
-
- 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
-
- 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]
- Y10T137/7904—Reciprocating valves
- Y10T137/7922—Spring biased
- Y10T137/7929—Spring coaxial with valve
- Y10T137/7931—Spring in inlet
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/890,964 US4232704A (en) | 1978-03-28 | 1978-03-28 | In line back flow preventer |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7919525A0 IT7919525A0 (it) | 1979-01-23 |
IT1110763B true IT1110763B (it) | 1986-01-06 |
Family
ID=25397394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1952579A IT1110763B (it) | 1978-03-28 | 1979-01-23 | Dispositivo per impedire il riflusso in linea |
Country Status (7)
Country | Link |
---|---|
US (1) | US4232704A (it) |
JP (1) | JPS5514379A (it) |
DE (1) | DE2854003C2 (it) |
FR (1) | FR2421319A1 (it) |
GB (2) | GB2017262B (it) |
IT (1) | IT1110763B (it) |
NL (1) | NL7812024A (it) |
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE15822T1 (de) * | 1982-01-26 | 1985-10-15 | Socla | Rueckflussverhinderer fuer druckleitungen. |
DE8207222U1 (de) * | 1982-03-15 | 1982-08-05 | Lang Apparatebau GmbH, 8227 Siegsdorf | Rohrtrenner, insbesondere fuer trinkwasserleitungen |
US4453561A (en) * | 1982-05-28 | 1984-06-12 | Mueller Co. | Check valve assembly for use in backflow preventers or the like |
US4489746A (en) * | 1982-05-28 | 1984-12-25 | Mueller Co. | Backflow preventer apparatus |
US4523607A (en) * | 1982-05-28 | 1985-06-18 | Mueller Co. | Backflow preventer apparatus |
US4553563A (en) * | 1982-05-28 | 1985-11-19 | Mueller Co. | Relief valve assembly for use with backflow preventers |
US4506694A (en) * | 1982-05-28 | 1985-03-26 | Mueller Co. | Relief valve assembly for use with backflow preventers |
US4525183A (en) * | 1982-11-26 | 1985-06-25 | Pall Corporation | Valves for desiccant dryers |
DE3247320C2 (de) * | 1982-12-21 | 1986-03-20 | Grünbeck Wasseraufbereitung GmbH, 8884 Höchstädt | Rohrtrenner mit Schutz gegen Verunreinigung |
FR2544832B1 (fr) * | 1983-04-22 | 1986-05-09 | Bayard Sa Ets | Dispositif anti-retour pour reseau d'alimentation en eau |
FR2561346B1 (fr) * | 1984-03-14 | 1986-09-19 | Bayard Ets | Appareil anti-retour pour reseaux d'alimentation en eau |
GB2179121B (en) * | 1985-08-17 | 1989-08-02 | Wigley Albert F | Improvements in or relating to fluid control valves |
US4658852A (en) * | 1985-10-21 | 1987-04-21 | Zvi Weingarten | Backflow preventer apparatus for fluid flow lines |
EP0339104B1 (de) | 1988-04-26 | 1991-09-04 | Honeywell-Braukmann GmbH | Armatur |
US4893654A (en) * | 1988-07-08 | 1990-01-16 | Feuz John G | Double check valve backflow preventer assembly |
DE3936962A1 (de) * | 1989-11-07 | 1991-05-08 | Waletzko Armaturen Gmbh | Rueckflussverhinderer, insbesondere zum einbau in trinkwasserleitungen |
US5046525A (en) * | 1990-06-15 | 1991-09-10 | Ames Company, Inc. | Differential loading fluid check valve |
US5242277A (en) * | 1991-11-21 | 1993-09-07 | Helix Technology Corporation | Ultra high vacuum cryopump relief valve assembly |
DE4204386C2 (de) * | 1992-02-14 | 1994-01-20 | Honeywell Braukmann Gmbh | Systemtrenner |
US5207242A (en) * | 1992-07-09 | 1993-05-04 | A. Y. Mcdonald Mgf. Co. | Angle dual check valve |
DE4309085C1 (de) * | 1993-03-20 | 1995-01-05 | Schubert & Salzer Ag | Systemtrenner |
GB2300695B (en) * | 1995-05-06 | 1999-04-28 | Worcester Heat Systems Ltd | Improvements in or relating to water supply assemblies |
US5855224A (en) * | 1996-07-11 | 1999-01-05 | Watts Investment Company | Flapper check valve |
FR2777966B1 (fr) * | 1998-04-27 | 2000-05-19 | Coflexip | Soupape differentielle pour conduite flexible sous-marine |
US6325090B1 (en) | 1998-06-09 | 2001-12-04 | Watts Investment Company | Backflow preventer assembly |
US6021805A (en) * | 1998-06-09 | 2000-02-08 | Watts Investment Company | Backflow preventer assembly |
DE19854951C2 (de) * | 1998-11-27 | 2001-11-15 | Rudolf Vollmer | Systemtrenner |
CA2373393C (en) * | 1999-05-18 | 2004-08-17 | Zurn Industries, Inc. | Backflow preventer valve |
US6273124B1 (en) * | 1999-05-26 | 2001-08-14 | Donald G. Huber | Check valve floor drain |
JP3162037B2 (ja) * | 1999-06-29 | 2001-04-25 | 兼工業株式会社 | 逆流防止装置 |
US6220282B1 (en) * | 1999-11-03 | 2001-04-24 | Hunter Innovations, Inc. | Backflow prevention apparatus |
JP3514684B2 (ja) * | 1999-12-22 | 2004-03-31 | 兼工業株式会社 | 水撃防止装置 |
EP1239201A1 (en) * | 2001-03-08 | 2002-09-11 | Bestobell Valves | Valve System |
US6719004B2 (en) | 2001-06-19 | 2004-04-13 | Donald G. Huber | Check valve floor drain |
CA2450304C (en) * | 2001-06-19 | 2008-01-08 | Donald G. Huber | Check valve floor drain |
US6595486B2 (en) * | 2001-09-06 | 2003-07-22 | Discount Refrigerants, Inc. | Non-refillable valve |
US7434593B2 (en) * | 2002-10-23 | 2008-10-14 | Zurn Industries, Llc | Double check valve assembly |
US20060055495A1 (en) * | 2004-09-15 | 2006-03-16 | Rategh Hamid R | Planar transformer |
US7128088B2 (en) * | 2004-10-07 | 2006-10-31 | Danfoss Flomatic Corporation | Backflow preventer |
US7784483B2 (en) * | 2005-01-21 | 2010-08-31 | Zurn Industries, Llc | Backflow preventer |
JP4293371B2 (ja) * | 2005-03-29 | 2009-07-08 | 藤倉ゴム工業株式会社 | リリーフ弁 |
US20070154856A1 (en) * | 2006-01-03 | 2007-07-05 | Raymond Hallit | Dual fuel boiler with backflow-preventing valve arrangement |
US20070204916A1 (en) * | 2006-03-01 | 2007-09-06 | Rain Bird Corporation | Backflow prevention device |
US20070204917A1 (en) * | 2006-03-01 | 2007-09-06 | Rain Bird Corporation | Backflow prevention device |
US8056156B2 (en) * | 2006-08-04 | 2011-11-15 | Ciochetti Sr Michael J | Vacuum relief unit and method for a pool |
DE102007030654A1 (de) * | 2007-07-02 | 2009-01-08 | Hans Sasserath & Co. Kg | Rohrtrenneranordnung |
MY173074A (en) * | 2007-11-20 | 2019-12-24 | Mimos Berhad | An improved micro check valve |
DE102008018665B4 (de) * | 2008-04-11 | 2011-02-03 | Khs Gmbh | Vorrichtung und Verfahren zur aseptischen Druckentlastung |
US8539712B2 (en) * | 2008-09-26 | 2013-09-24 | University Of Vermont And State Agricultural College | Maple syrup production spout assembly with backflow check valve |
US20100170152A1 (en) * | 2008-09-26 | 2010-07-08 | University Of Vermont And State Agricultural College | Maple spout with interior chamber and maple syrup production system using same |
US7891374B2 (en) * | 2009-05-12 | 2011-02-22 | Vicars Berton L | Suction valve |
US8424242B2 (en) * | 2010-01-19 | 2013-04-23 | University Of Vermont And State Agricultural College | Dual-line spout and maple syrup production system using same |
US9139991B2 (en) | 2011-01-31 | 2015-09-22 | The Rectorseal Corporation | Floor drain valve with resiliently mounted rigid flappers |
US9032992B2 (en) * | 2011-10-13 | 2015-05-19 | Flomatic Corporation | Check valve |
CN102588160B (zh) * | 2012-03-06 | 2013-06-19 | 华中科技大学 | 燃气发动机进气回火防止器 |
US20160096631A1 (en) * | 2013-06-21 | 2016-04-07 | James William Reinholdt | Dual redundant aerial refueling coupling regulator assembly |
US9010363B2 (en) | 2013-06-24 | 2015-04-21 | The Rectorseal Corporation | Drain valve |
US9416986B2 (en) | 2013-06-24 | 2016-08-16 | The Rectorseal Corporation | Valve for roof vent |
JP6183648B2 (ja) * | 2013-07-25 | 2017-08-23 | 株式会社ノーリツ | 逆流防止装置 |
JP6150121B2 (ja) * | 2013-07-25 | 2017-06-21 | 株式会社ノーリツ | 逆流防止装置 |
GB2539053A (en) * | 2015-06-05 | 2016-12-07 | Dimmer Paul | 2 way non return isolation valve |
GB2539545B (en) * | 2016-04-18 | 2018-01-03 | Score (Europe) Ltd | An injector |
JP7349817B2 (ja) * | 2019-05-24 | 2023-09-25 | エステー株式会社 | 薬剤容器 |
CN112932303A (zh) * | 2021-03-30 | 2021-06-11 | 厦门暖洋家居有限公司 | 一种自动加液装置 |
CN118088769B (zh) * | 2024-04-26 | 2024-08-02 | 常州市泰雄电子有限公司 | 一种基于安全机构的气体阀门 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2389413A (en) * | 1941-09-26 | 1945-11-20 | Carlton Frank | Method of preventing backflow or back-siphonage in pressure systems |
US2503424A (en) * | 1945-01-15 | 1950-04-11 | Leonard L Snyder | Backflow preventer |
US2586942A (en) * | 1947-11-08 | 1952-02-26 | Grove Regulator Company | Apparatus for preventing backflow of liquid |
US2706488A (en) * | 1950-11-30 | 1955-04-19 | Hersey Mfg Company | Anti-back-flow device |
US3173439A (en) * | 1961-06-26 | 1965-03-16 | Donald G Griswold | Backflow prevention device |
US3448763A (en) * | 1967-02-20 | 1969-06-10 | Hersey Sparling Meter Co | Relief valve |
US3747621A (en) * | 1970-10-05 | 1973-07-24 | Watts Regulator Co | Backflow preventer |
US3636968A (en) * | 1970-10-05 | 1972-01-25 | Watts Regulator Co | Cross-connection control valve |
IL45802A (en) * | 1973-10-26 | 1977-05-31 | Griswold Controls | Check valve useful in backflow prevention apparatus |
US4054153A (en) * | 1973-11-14 | 1977-10-18 | Guyton Glen B | Check valve |
US4013088A (en) * | 1975-05-19 | 1977-03-22 | Braukmann Armaturen Ag | Valve structure |
US3996962A (en) * | 1976-03-19 | 1976-12-14 | Rockwell International Corporation | Backflow preventer and relief valve assembly |
US4129144A (en) * | 1976-11-16 | 1978-12-12 | Bo Allan Andersson | Stabilizing check valve |
-
1978
- 1978-03-28 US US05/890,964 patent/US4232704A/en not_active Expired - Lifetime
- 1978-12-11 NL NL7812024A patent/NL7812024A/xx not_active Application Discontinuation
- 1978-12-14 DE DE2854003A patent/DE2854003C2/de not_active Expired
- 1978-12-19 GB GB7849038A patent/GB2017262B/en not_active Expired
- 1978-12-19 GB GB08115429A patent/GB2102537B/en not_active Expired
-
1979
- 1979-01-23 IT IT1952579A patent/IT1110763B/it active
- 1979-03-26 FR FR7907557A patent/FR2421319A1/fr active Granted
- 1979-03-27 JP JP3510079A patent/JPS5514379A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2017262B (en) | 1982-07-21 |
US4232704A (en) | 1980-11-11 |
FR2421319A1 (fr) | 1979-10-26 |
DE2854003A1 (de) | 1979-10-11 |
FR2421319B1 (it) | 1983-04-15 |
GB2102537B (en) | 1983-06-02 |
JPS6115311B2 (it) | 1986-04-23 |
DE2854003C2 (de) | 1984-10-25 |
GB2017262A (en) | 1979-10-03 |
GB2102537A (en) | 1983-02-02 |
JPS5514379A (en) | 1980-01-31 |
IT7919525A0 (it) | 1979-01-23 |
NL7812024A (nl) | 1979-10-02 |
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