US2616512A - Antibackflow valve - Google Patents
Antibackflow valve Download PDFInfo
- Publication number
- US2616512A US2616512A US154248A US15424850A US2616512A US 2616512 A US2616512 A US 2616512A US 154248 A US154248 A US 154248A US 15424850 A US15424850 A US 15424850A US 2616512 A US2616512 A US 2616512A
- Authority
- US
- United States
- Prior art keywords
- valve
- sewage
- chamber
- ball
- backwater
- 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 - Lifetime
Links
- 239000010865 sewage Substances 0.000 description 16
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
- E03F7/04—Valves for preventing return flow
-
- 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
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7358—By float controlled 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]
- Y10T137/7869—Biased open
- Y10T137/7871—Weight biased
- Y10T137/7873—Ball valves
-
- 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
- Y10T137/7908—Weight biased
- Y10T137/7909—Valve body is the weight
- Y10T137/791—Ball valves
- Y10T137/7912—Separable seat
-
- 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
- Y10T137/86292—System with plural openings, one a gas vent or access opening
- Y10T137/863—Access and outlet
Definitions
- This invention relates to antibaokflow "valves and, more particularly, to a valvefor-preventin'g ingress of sewage or tidewat'er to a building outflow system.
- the primary object of this invention is to provide an anti-backwater valve for connection between the sewage outflow pipe, generally in the basement or ground floor of the building, and the main sewage line or branch line, the particular object being to provide such a valve that will conserve the grade in the system.
- the problem of preventing backflow of sewage or tidal waters from a sewage outflow and related pipes in a building almost invariably occur where there is very little grade between the pipes in thebottom of a building and the main sewage line.
- Another object of the invention is to provide an anti-backwater valve which, in operation, relies almost entirely on gravity and flotation, respectively, for its opening and closing.
- a gravity-opening, flotation-closing ball valve which does not depend in any material respect on the velocity of out-flowing sewage for its opening or, on the other hand, does not depend on velocity of backwater for its closing, the importance of this phase of the invention being appreciable in that sewage systems having backwater problems have relatively little fall and consequently relatively little velocity in the flow of sewage or water in either direction.
- the object now is to provide a flotation type check valve wherein only the significant opening and closing movements of the ball are in a substantially vertical direction and wherein the other movements of the ball approach the horizontal.
- the vertical dimensioning of the entire valve is thereby held to the minimum.
- Fig. 2 is 'a vertical transverse section taken along the line 2-2 of Fig. 1. 7
- the backwater valve has ajhollow casing indicated generally at 2 and preferably cast of suitable metal such as iron.
- Casing 2 is generally '2- shaped and comprises a horizontal inlet pipe 4 dimensioned for fitting with a sewage pipe usually extending horizontally beneath the basement or ground floor of a building. Preferably, a slight excavation is made to accommodate casing '2 so that it're'sts in the positionshown in Fig.1 ofthe drawing.
- Horizontal inlet pipe 4 terminates in a cylindrical cleanout chamber 6 which is closed at its top by removable closure cap 8 preferably formed of brass, it being obvious that when cap 8 is removed, any debris collecting in chamber 6 may be removed manually or forced downwardly through the valve.
- valve seat I4 In the bottom of chamber 6 there is formed a relatively large vertical passage Ill surrounded by a flanged recess l2 in which fits an annular valve seat [4, preferably formed of neoprene or other plastic material resistant to rease and oil and including on its working face an annular ring seal Hi.
- annular valve seat I4 casing 2, on the outlet side of the valve, extends downwardly in the region indicated generally at 11, corresponding to the vertical leg or juncture member of a Z, and thence laterally to terminate in a horizontally extending outlet I8.
- Ball 26 may be suitably formed of sheet metal or plastic.
- Ball 26 is shown in full line position in Fig. 1 seated upwardly against ring seal I6 of valve seat M, a position it assumes by floating backwardly and upwardly on backwater rising through outlet 18.
- Ball 26 rolls by gravity down steeply inclined rib portions 22a and thence laterally away on gradually inclined rib portions 22b to its dash line position.
- dash line position of ball 26 the latter lies almost entirely out of the line of normal flow of sewage passing through the valve.
- backwater risin in the outlet side of the valve will reach ball 26 when the latter is in its dash line position long before it rises to the level of seat It.
- ball 26 floats upwardly and laterally to its full line position wherein it seats against ring seal 16 so as to prevent any backflow through the valve.
- valve II In event a cleanout becomes necessary, closure 8 is lifted from chamber 6 whereupon large debris may be manually removed or forced downwardly passed valve II. It is noteworthy that any debris forced or washed through valve seat l4 passes on directly to outlet t8. Because of the arrangement of ante chamber 20 contiguous with and above outlet [8, and the disposition of the ribs 22 adjacent the flow path, sewage through which valve tends always to keep ante chamber 20, ribs 22 and ball 26 free of debris or encumbering deposits.
- An anti-backfiow valve comprising a hollow casing having a substantially horizontally extending inlet conduit terminating in a cylindrical chamber with substantially coaxial openings through the upper and lower sides thereof and having an outlet conduit extending downwardly and thence laterally from the open lower end of said chamber, a removable cap for the opening in the upper side of said chamber, the lower side of said chamber having an upwardly facing substantially annular shoulder therein surrounding the opening and defining a pocket for receiving a valve seat, an annular valve seat engaged in said pocket, the inner periphery of said valve seat protruding inwardly into the lastnamed opening, inclined guide ribs extending longitudinally along opposite sides of said outlet conduit, said guide ribs having upper end portions lying substantially beneath said valve seat and lower end portions extending laterally therefrom towards the outlet end of said outlet conduit, and a bouyant valve rollably supported on said ribs, whereby normally said ball valve is assisted by gravity to roll on said ribs but, upon rise of backwater in said outlet conduit, floats upwardly to
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Check Valves (AREA)
Description
NOV. 4, 1952 CQQN 2,616,512
' ANTIBACKFLOW VALVE Filed April 6, 1950 INVENTOR EVERETT P. Coo/v ATTORNEY Patented Nov. 4, 1952 NIT-ED STATES PATENT oss-ic s 2,616,512 ANT'mAcKFLow VALVE Everett II. 60011, Boise, Idaho Application April *6, 1950, Serial No. 154,248
'1 Claim.
This invention relates to antibaokflow "valves and, more particularly, to a valvefor-preventin'g ingress of sewage or tidewat'er to a building outflow system.
The primary object of this invention is to provide an anti-backwater valve for connection between the sewage outflow pipe, generally in the basement or ground floor of the building, and the main sewage line or branch line, the particular object being to provide such a valve that will conserve the grade in the system. The problem of preventing backflow of sewage or tidal waters from a sewage outflow and related pipes in a building almost invariably occur where there is very little grade between the pipes in thebottom of a building and the main sewage line. When the main sewage line is overlooked or when the tidal or rain waters back up in the main sewer line, there results the obvious tendency for the sewage to back up into the lower parts of the building sewage system, thereby creating untenable conditions in the building but also with a resultant deposit of trash and debris in the building sewage system. Accordingly, it is now intended to provide an anti-backwater valve installable in existing systems without, material loss of grade or "change'in direction of the'existing pipes.
Another object of the invention is to provide an anti-backwater valve which, in operation, relies almost entirely on gravity and flotation, respectively, for its opening and closing. Stated conversely, it is proposed now to provide a gravity-opening, flotation-closing ball valve which does not depend in any material respect on the velocity of out-flowing sewage for its opening or, on the other hand, does not depend on velocity of backwater for its closing, the importance of this phase of the invention being appreciable in that sewage systems having backwater problems have relatively little fall and consequently relatively little velocity in the flow of sewage or water in either direction. In contrast with previous attempts to provide a substantially horizontally arranged check valve wherein velocity of flow therethrough invariably played an important part, the object now is to provide a flotation type check valve wherein only the significant opening and closing movements of the ball are in a substantially vertical direction and wherein the other movements of the ball approach the horizontal. By limiting the vertical path of movement of the ball, the vertical dimensioning of the entire valve is thereby held to the minimum.
"through the "middle of the valve; and
Fig. 2 is 'a vertical transverse section taken along the line 2-2 of Fig. 1. 7
Referring now to the drawing'ijn which like reference numerals denote similar elements, the backwater valve has ajhollow casing indicated generally at 2 and preferably cast of suitable metal such as iron. Casing 2 is generally '2- shaped and comprises a horizontal inlet pipe 4 dimensioned for fitting with a sewage pipe usually extending horizontally beneath the basement or ground floor of a building. Preferably, a slight excavation is made to accommodate casing '2 so that it're'sts in the positionshown in Fig.1 ofthe drawing. Horizontal inlet pipe 4 terminates in a cylindrical cleanout chamber 6 which is closed at its top by removable closure cap 8 preferably formed of brass, it being obvious that when cap 8 is removed, any debris collecting in chamber 6 may be removed manually or forced downwardly through the valve.
In the bottom of chamber 6 there is formed a relatively large vertical passage Ill surrounded by a flanged recess l2 in which fits an annular valve seat [4, preferably formed of neoprene or other plastic material resistant to rease and oil and including on its working face an annular ring seal Hi. In the region below valve seat I4, casing 2, on the outlet side of the valve, extends downwardly in the region indicated generally at 11, corresponding to the vertical leg or juncture member of a Z, and thence laterally to terminate in a horizontally extending outlet I8. In the interior of the angle between downwardly and laterally extending portions I1 and I8 there is an enlargement in the top of outlet l8 constituting an ante-chamber 20 having a semi-cylindrical upper wall 2| as best seen in Fig. 2. The interior of ante-chamber 2B is contiguous with the remainder of the interior of the outlet side of the valve, there being a pair of guide ribs 22 oppositely disposed on each side of the lower portion of the ante-chamber. As shown in Fig. 1 guide ribs 22 are inclined upwardly from right to left, the upper portions 22a lying immediately below valve seat l4 being relatively steeply inclined and the lower portions 22b lying below ante-chamber 20 being relatively gradually inclined. It will be observed further that the disposition and inclination of guide ribs 22 correspond with the upper semi-cylindrical wall 2| of ante-chamber 20 so as loosely to confine a hollow floating ball 26. Ball 26 may be suitably formed of sheet metal or plastic.
In event a cleanout becomes necessary, closure 8 is lifted from chamber 6 whereupon large debris may be manually removed or forced downwardly passed valve II. It is noteworthy that any debris forced or washed through valve seat l4 passes on directly to outlet t8. Because of the arrangement of ante chamber 20 contiguous with and above outlet [8, and the disposition of the ribs 22 adjacent the flow path, sewage through which valve tends always to keep ante chamber 20, ribs 22 and ball 26 free of debris or encumbering deposits.
The invention described above is not limited to the structure specifically disclosed, but is in- '4 tended to cover all modifications, substitutions, and equivalents within the scope of the following claim.
I claim:
An anti-backfiow valve comprising a hollow casing having a substantially horizontally extending inlet conduit terminating in a cylindrical chamber with substantially coaxial openings through the upper and lower sides thereof and having an outlet conduit extending downwardly and thence laterally from the open lower end of said chamber, a removable cap for the opening in the upper side of said chamber, the lower side of said chamber having an upwardly facing substantially annular shoulder therein surrounding the opening and defining a pocket for receiving a valve seat, an annular valve seat engaged in said pocket, the inner periphery of said valve seat protruding inwardly into the lastnamed opening, inclined guide ribs extending longitudinally along opposite sides of said outlet conduit, said guide ribs having upper end portions lying substantially beneath said valve seat and lower end portions extending laterally therefrom towards the outlet end of said outlet conduit, and a bouyant valve rollably supported on said ribs, whereby normally said ball valve is assisted by gravity to roll on said ribs but, upon rise of backwater in said outlet conduit, floats upwardly to close against said seat.
EVERETT P. COON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 199,307 Naeher Jan. 15, 1878 486,177 Couzens Nov. 15, 1892 1,549,007 Khun Aug. 11, 1925 FOREIGN PATENTS Number Country Date 19,135 Great Britain Aug. 19, 1897 436,806 Great Britain Oct 18, 1935
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US154248A US2616512A (en) | 1950-04-06 | 1950-04-06 | Antibackflow valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US154248A US2616512A (en) | 1950-04-06 | 1950-04-06 | Antibackflow valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US2616512A true US2616512A (en) | 1952-11-04 |
Family
ID=22550603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US154248A Expired - Lifetime US2616512A (en) | 1950-04-06 | 1950-04-06 | Antibackflow valve |
Country Status (1)
Country | Link |
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US (1) | US2616512A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2757687A (en) * | 1955-03-28 | 1956-08-07 | Alfred M Moen | Single valve mixing faucet |
US2792196A (en) * | 1951-06-28 | 1957-05-14 | Acf Ind Inc | Spherical plug valve |
US2912007A (en) * | 1953-04-15 | 1959-11-10 | Johnson Clarence | Pilot operated four-way valve |
US2916998A (en) * | 1956-06-06 | 1959-12-15 | Economies Lab Inc | Calibrated injection pump |
US2933095A (en) * | 1957-04-15 | 1960-04-19 | Houdaille Industries Inc | Valve construction |
US2953153A (en) * | 1958-02-28 | 1960-09-20 | Leslie C Gaul | Vented safety check valve |
US2990845A (en) * | 1958-11-21 | 1961-07-04 | David W Sklash | Flood regulator |
US3192951A (en) * | 1962-07-27 | 1965-07-06 | Rotary Hospital Equipment Corp | Pulsator |
US3260504A (en) * | 1963-10-15 | 1966-07-12 | Mojonnier Bros Co | Seat arrangement for control valves and the like |
US3272474A (en) * | 1958-12-18 | 1966-09-13 | Air Placement Equipment Co Inc | Shut-off valve for cementitious pressure vessels |
US3305212A (en) * | 1964-10-07 | 1967-02-21 | Stephen A Beach | Air valve apparatus |
US3998274A (en) * | 1975-05-15 | 1976-12-21 | Liautaud James P | Fire extinguisher head assembly |
US4046161A (en) * | 1974-10-29 | 1977-09-06 | Benoit Bonneau | Non-return valve for preventing back flow of waste waters |
EP0494060A1 (en) * | 1991-01-03 | 1992-07-08 | Gert Söderström | Floor drain insert |
US6007314A (en) * | 1996-04-01 | 1999-12-28 | Nelson, Ii; Joe A. | Downhole pump with standing valve assembly which guides the ball off-center |
US6314988B1 (en) * | 1999-02-16 | 2001-11-13 | Karl Smith | Flood control valve assembly |
US10914399B1 (en) * | 2019-07-31 | 2021-02-09 | Jeremy Hohnbaum | System and apparatus for controlling fluid flow in drainage systems |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US199307A (en) * | 1878-01-15 | Improvement in check-valves for sewers | ||
US486177A (en) * | 1892-11-15 | couzens | ||
GB189719135A (en) * | 1897-08-19 | 1898-08-19 | John Alfred Wallis | An Improved Sewer Interceptor for Prevention of Backflow of Storm Water from Sewers into Houses on Low Levels and the like. |
US1549007A (en) * | 1924-10-02 | 1925-08-11 | Albert M Khun | Safety manhole for sewers |
GB436806A (en) * | 1933-04-21 | 1935-10-18 | Johannes Albertus Vincentius M | Improvements in one-way discharge valves and other non-return valves |
-
1950
- 1950-04-06 US US154248A patent/US2616512A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US199307A (en) * | 1878-01-15 | Improvement in check-valves for sewers | ||
US486177A (en) * | 1892-11-15 | couzens | ||
GB189719135A (en) * | 1897-08-19 | 1898-08-19 | John Alfred Wallis | An Improved Sewer Interceptor for Prevention of Backflow of Storm Water from Sewers into Houses on Low Levels and the like. |
US1549007A (en) * | 1924-10-02 | 1925-08-11 | Albert M Khun | Safety manhole for sewers |
GB436806A (en) * | 1933-04-21 | 1935-10-18 | Johannes Albertus Vincentius M | Improvements in one-way discharge valves and other non-return valves |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2792196A (en) * | 1951-06-28 | 1957-05-14 | Acf Ind Inc | Spherical plug valve |
US2912007A (en) * | 1953-04-15 | 1959-11-10 | Johnson Clarence | Pilot operated four-way valve |
US2757687A (en) * | 1955-03-28 | 1956-08-07 | Alfred M Moen | Single valve mixing faucet |
US2916998A (en) * | 1956-06-06 | 1959-12-15 | Economies Lab Inc | Calibrated injection pump |
US2933095A (en) * | 1957-04-15 | 1960-04-19 | Houdaille Industries Inc | Valve construction |
US2953153A (en) * | 1958-02-28 | 1960-09-20 | Leslie C Gaul | Vented safety check valve |
US2990845A (en) * | 1958-11-21 | 1961-07-04 | David W Sklash | Flood regulator |
US3272474A (en) * | 1958-12-18 | 1966-09-13 | Air Placement Equipment Co Inc | Shut-off valve for cementitious pressure vessels |
US3192951A (en) * | 1962-07-27 | 1965-07-06 | Rotary Hospital Equipment Corp | Pulsator |
US3260504A (en) * | 1963-10-15 | 1966-07-12 | Mojonnier Bros Co | Seat arrangement for control valves and the like |
US3305212A (en) * | 1964-10-07 | 1967-02-21 | Stephen A Beach | Air valve apparatus |
US4046161A (en) * | 1974-10-29 | 1977-09-06 | Benoit Bonneau | Non-return valve for preventing back flow of waste waters |
US3998274A (en) * | 1975-05-15 | 1976-12-21 | Liautaud James P | Fire extinguisher head assembly |
EP0494060A1 (en) * | 1991-01-03 | 1992-07-08 | Gert Söderström | Floor drain insert |
US6007314A (en) * | 1996-04-01 | 1999-12-28 | Nelson, Ii; Joe A. | Downhole pump with standing valve assembly which guides the ball off-center |
US6314988B1 (en) * | 1999-02-16 | 2001-11-13 | Karl Smith | Flood control valve assembly |
US10914399B1 (en) * | 2019-07-31 | 2021-02-09 | Jeremy Hohnbaum | System and apparatus for controlling fluid flow in drainage systems |
US11473696B1 (en) | 2019-07-31 | 2022-10-18 | Jeremy Hohnbaum | System and apparatus for controlling fluid flow in drainage systems with a cage device |
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