GB1392429A - Vacuum breaker valve - Google Patents
Vacuum breaker valveInfo
- Publication number
- GB1392429A GB1392429A GB567874A GB567874A GB1392429A GB 1392429 A GB1392429 A GB 1392429A GB 567874 A GB567874 A GB 567874A GB 567874 A GB567874 A GB 567874A GB 1392429 A GB1392429 A GB 1392429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- outlet
- toilet bowl
- tortuous path
- cap
- 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
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
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
1392429 W.C. Supply Valves ITT INDUSTRIES LTD 7 Feb 1974 [14 Feb 1973 5678/74 Heading E1C [Also in Division F2] A vacuum prevention valve for a toilet bowl has a tortuous path between an inlet 26 and an outlet 46, controlled by a valve element 66 which rests on the annular rim 28 of the inlet pipe. The valve element comprises a flat top plate 68 having a depending flange 70 at its periphery and four radially extending ribs which are a loose fit within the inlet pipe 26. A resilient gasket 74 is located on top of the plate 68 by a rivet 76. The housing comprises a cap member 24 and a base member 22 moulded from polypropylene or ABS. Depending and upstanding ribs in the cap and base form the tortuous path. In the absence of water pressure at the inlet 26 the valve is positioned as shown with this outlet 46 vented to atmosphere through a hole 58 in the cap and the top of the outlet pipe sealed by the valve to prevent any possibility of syphoning off the contents of the toilet bowl. Water pressure lifts the valve and the gasket 74 seals the vent hole 58. In an alternative embodiment, Figs 6-12 (not shown), an additional outlet (112) is provided having a less tortuous path through the valve and therefore at a slightly higher pressure than the outlet 46 to the toilet bowl. This extra outlet may be used for a spray for cleaning the bowl.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33237173A | 1973-02-14 | 1973-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1392429A true GB1392429A (en) | 1975-04-30 |
Family
ID=23297931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB567874A Expired GB1392429A (en) | 1973-02-14 | 1974-02-07 | Vacuum breaker valve |
Country Status (9)
Country | Link |
---|---|
US (1) | US3788342A (en) |
JP (1) | JPS49113227A (en) |
AU (1) | AU6540174A (en) |
CA (1) | CA995096A (en) |
DE (1) | DE2406025A1 (en) |
ES (1) | ES423198A1 (en) |
FR (1) | FR2217612B3 (en) |
GB (1) | GB1392429A (en) |
IT (1) | IT1007275B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929149A (en) * | 1974-05-23 | 1975-12-30 | Robert Manufacturing Company | Backflow preventor for automatic dishwashers |
US5404898A (en) * | 1993-08-20 | 1995-04-11 | Environmental System & Solutions, Inc. | Anti-syphon fluid control valve apparatus and method |
US6123095A (en) * | 1998-05-12 | 2000-09-26 | Watersaver Faucet Co. | Vacuum breaker with buoyant float cup |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1342955A (en) * | 1918-04-19 | 1920-06-08 | Henry J Gebhardt | Valve |
US3120855A (en) * | 1961-05-31 | 1964-02-11 | Hoover Ball & Bearing Co | Anti-siphon ball cock assembly |
US3180352A (en) * | 1962-05-04 | 1965-04-27 | Water Saver Faucet Co | Anti-siphon check valve |
-
1973
- 1973-02-14 US US3788342D patent/US3788342A/en not_active Expired - Lifetime
-
1974
- 1974-02-07 GB GB567874A patent/GB1392429A/en not_active Expired
- 1974-02-08 AU AU65401/74A patent/AU6540174A/en not_active Expired
- 1974-02-08 IT IT2027374A patent/IT1007275B/en active
- 1974-02-08 DE DE19742406025 patent/DE2406025A1/en not_active Withdrawn
- 1974-02-13 ES ES423198A patent/ES423198A1/en not_active Expired
- 1974-02-13 CA CA192,350A patent/CA995096A/en not_active Expired
- 1974-02-14 JP JP1718574A patent/JPS49113227A/ja active Pending
- 1974-02-14 FR FR7404974A patent/FR2217612B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2217612A1 (en) | 1974-09-06 |
IT1007275B (en) | 1976-10-30 |
AU6540174A (en) | 1975-08-14 |
JPS49113227A (en) | 1974-10-29 |
US3788342A (en) | 1974-01-29 |
CA995096A (en) | 1976-08-17 |
ES423198A1 (en) | 1976-05-01 |
DE2406025A1 (en) | 1974-08-29 |
FR2217612B3 (en) | 1976-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940206 |