CA2344321C - Method of fabricating a backwater valve - Google Patents
Method of fabricating a backwater valve Download PDFInfo
- Publication number
- CA2344321C CA2344321C CA 2344321 CA2344321A CA2344321C CA 2344321 C CA2344321 C CA 2344321C CA 2344321 CA2344321 CA 2344321 CA 2344321 A CA2344321 A CA 2344321A CA 2344321 C CA2344321 C CA 2344321C
- Authority
- CA
- Canada
- Prior art keywords
- annular body
- fitting
- flow openings
- inner diameter
- flow
- 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
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
A method of fabricating a backwater valve. A first step involves providing a fitting having at least two flow openings with an inner diameter. A second step involves providing an annular body having a central passage and a valve member movable between a closed position blocking the central passage and an open position. The annular body has an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least two flow openings. A third step involves inserting the annular body into the selected one of the at least two flow openings and securing the annular body in place.
Description
TITLE OF THE INVENTION:
Method of Fabricating a Backwater Valve FIELD OF THE INVENTION
The present invention relates to a method of fabricating a backwater valve BACKGROUND OF THE INVENTION
Backwater valves are made in several standard sizes.
Problems arise when an installation is encountered that requires an "odd" size of backwater valve. In such cases a backwater valve must be custom made to suit the application at a cost of several hundred dollars.
SUMMARY OF THE INVENTION
What is required is a less expensive method of fabricating a "odd" sizes of backwater valves.
According to one aspect of the present invention there is provided a method of fabricating a backwater valve. A first step involves providing a fitting having at least two flow openings with an inner diameter. A second step involves providing an annular body having a central passage and a valve member movable between a closed position blocking the central passage and an open position. The annular body has an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least two flow openings.
A third step involves inserting the annular body into the selected one of the at least two flow openings and securing the annular body in place.
The method, as described above, enables a 6 inch backwater valve to be made out of an 8 inch fitting through the use of an insert.
According to another aspect of the present invention there is provided a backwater valve which includes a fitting having at least two flow openings with an inner diameter. An annular body is provided having a central passage and a valve member movable between a closed position blocking the central passage and an open position. The annular body has an outer diameter adapted for close fittirig insertion within the inner diameter of a selected one of the at least two flow openings. The annular body is inserted.into the selected one of the at least two flow openings and secured in place.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other fea:ures of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view of a tee fitting provided in accordance with the teachings of a first step in the preferred method.
FIGURE 2 is a top plan view of the tee fitting illustrated in FIGURE 1.
FIGURE 3 is a side elevation view of an end insert provided in accordance with the teachings of a second step in the preferred method.
FIGURE 4 is a side elevation view, in section, of a normally closed backwater valve fabricated in accordance with a third step in the pref:erred method utilizing the end insert illustrated in FIGURE 3..
FIGURE 5 is a sicie elevation view, in section, of a normally open backwater valve fabricated in accordance with a third step in the preferred method utilizing the end insert illustrated in FIGURE 3.
FIGURE 6 is a side elevation view of a top insert provided in accordance with the teachings of a second step in the preferred method.
FIGURE 7 is a top plan view of the top insert illustrated in FIGURE 6.
FIGURE 8 is a side elevation view, in section, of a normally closed backwater valve fabricated in accordance with a third step in the preferred method utilizing the top insert illustrated in FIGURE 6.
FIGURE 9 is a top plan view of the backwater valve illustrated in FIGURE 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred method of fabricating a backwater valve 10 will now be described with reference to FIGURES 1 through 9.
Referring to FIGURES 1 and 2, a first step involves providing an fitting 12 that has at least two flow openings 14 with an inner diameter 16. Generally, an oversized fitting is used. What is meant by "oversized" is that it has flow openings that have inner diameters that are larger than required. This allows an insert to be inserted while still maintaining an inner diameter which provides a flow channel of the desired size. Referring to FIGURE 4, in the illustrated embodiment, fitting 12 is a tee fitting that is adapted for use in a substantially horizontal orientation with a top 18, a bottom 20, a first end 22 and a second end 24. In the illustrated embodiment, flow openings 14 are positioned at first end 22, second end 24 and at top 18 of fitting 12, however it will be appreciated that other types of fittings 12 which may have different arrangements of flow openings 14 can be used, so long as fitting 12 has at least two flow openings 14.
Referring to FIGURE 3, a second step involves providing an annular body 26 that has a central passage 28 and a valve member 30 that is movable between a closed position blocking central passage 28 and an open position. Valve member 30 is secured to annular body 26 by a pivotal connection 32. Annular body 26 has an outer diameter 34 adapted for close fitting insertion within inner diameter 16 of one of flow openings 14.
Annular body 26 has an inner diameter which is adapted to receive a conduit 33 in mating relation, which directs the flow of fluid into annular body 26.
Method of Fabricating a Backwater Valve FIELD OF THE INVENTION
The present invention relates to a method of fabricating a backwater valve BACKGROUND OF THE INVENTION
Backwater valves are made in several standard sizes.
Problems arise when an installation is encountered that requires an "odd" size of backwater valve. In such cases a backwater valve must be custom made to suit the application at a cost of several hundred dollars.
SUMMARY OF THE INVENTION
What is required is a less expensive method of fabricating a "odd" sizes of backwater valves.
According to one aspect of the present invention there is provided a method of fabricating a backwater valve. A first step involves providing a fitting having at least two flow openings with an inner diameter. A second step involves providing an annular body having a central passage and a valve member movable between a closed position blocking the central passage and an open position. The annular body has an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least two flow openings.
A third step involves inserting the annular body into the selected one of the at least two flow openings and securing the annular body in place.
The method, as described above, enables a 6 inch backwater valve to be made out of an 8 inch fitting through the use of an insert.
According to another aspect of the present invention there is provided a backwater valve which includes a fitting having at least two flow openings with an inner diameter. An annular body is provided having a central passage and a valve member movable between a closed position blocking the central passage and an open position. The annular body has an outer diameter adapted for close fittirig insertion within the inner diameter of a selected one of the at least two flow openings. The annular body is inserted.into the selected one of the at least two flow openings and secured in place.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other fea:ures of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view of a tee fitting provided in accordance with the teachings of a first step in the preferred method.
FIGURE 2 is a top plan view of the tee fitting illustrated in FIGURE 1.
FIGURE 3 is a side elevation view of an end insert provided in accordance with the teachings of a second step in the preferred method.
FIGURE 4 is a side elevation view, in section, of a normally closed backwater valve fabricated in accordance with a third step in the pref:erred method utilizing the end insert illustrated in FIGURE 3..
FIGURE 5 is a sicie elevation view, in section, of a normally open backwater valve fabricated in accordance with a third step in the preferred method utilizing the end insert illustrated in FIGURE 3.
FIGURE 6 is a side elevation view of a top insert provided in accordance with the teachings of a second step in the preferred method.
FIGURE 7 is a top plan view of the top insert illustrated in FIGURE 6.
FIGURE 8 is a side elevation view, in section, of a normally closed backwater valve fabricated in accordance with a third step in the preferred method utilizing the top insert illustrated in FIGURE 6.
FIGURE 9 is a top plan view of the backwater valve illustrated in FIGURE 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred method of fabricating a backwater valve 10 will now be described with reference to FIGURES 1 through 9.
Referring to FIGURES 1 and 2, a first step involves providing an fitting 12 that has at least two flow openings 14 with an inner diameter 16. Generally, an oversized fitting is used. What is meant by "oversized" is that it has flow openings that have inner diameters that are larger than required. This allows an insert to be inserted while still maintaining an inner diameter which provides a flow channel of the desired size. Referring to FIGURE 4, in the illustrated embodiment, fitting 12 is a tee fitting that is adapted for use in a substantially horizontal orientation with a top 18, a bottom 20, a first end 22 and a second end 24. In the illustrated embodiment, flow openings 14 are positioned at first end 22, second end 24 and at top 18 of fitting 12, however it will be appreciated that other types of fittings 12 which may have different arrangements of flow openings 14 can be used, so long as fitting 12 has at least two flow openings 14.
Referring to FIGURE 3, a second step involves providing an annular body 26 that has a central passage 28 and a valve member 30 that is movable between a closed position blocking central passage 28 and an open position. Valve member 30 is secured to annular body 26 by a pivotal connection 32. Annular body 26 has an outer diameter 34 adapted for close fitting insertion within inner diameter 16 of one of flow openings 14.
Annular body 26 has an inner diameter which is adapted to receive a conduit 33 in mating relation, which directs the flow of fluid into annular body 26.
Referring to FIGURE 4 a third step involves inserting annular body 26 into one of flow openings 14 and then securing annular body 26 in place. Although the preferred means of securing annular body 26 in placed is through the use of adhesive, there are various alternative means by which annular body 26 can be secured in placed, including: with rubber sealing gaskets, fused through plastic welding, or clamped.
Central passage 28 of anriular body 26 is aligned to communicate with an interior flow passage 36 of fitting 12.
Various styles of backwater valve 10 will now be described.
Referring to FIGURE 4, there is illustrated a normally closed backwater valve :LO. Annular body 26 is positioned in flow opening 14 at first end 22 of fitting 12 with pivotal connection 32 is positioned toward top 18 of fitting 12. Valve member 30 pivots to the closed position by force of gravity.
The use and operati_on of normally closed backwater valve 10 will now be described with reference to FIGURE 4. Referring to FIGURE 4, the force of. fluid flowing through central passage 28 pushes valve member 30 open so that fluid can pass through fitting 12. Gravity biases valve member 30 into the closed position which blocks fluid from flowing back into central passage 28 of annular body 26.
Referring to FIGURE 5 there is illustrated a normally open backwater valve 10. Annular body 26 is inserted into flow passage 14 at first end 22 of fitting 12 with pivotal connection 32 of annular body 26 positioned toward bottom 20 of fitting 12. Valve member 30 is pivoted to the open position by force of gravity.
The use and operation of normally open backwater valve 10 will now be described with reference to FIGURE 5. Referring to FIGURE 5, fluid flowing through central passage 28 of annular body 26 flows over valve member 30 in the open position and through flow passage 36 of fitting 12. In the event that the flow of fluid reverses, rising backflowing fluid within flow passage 36 of fitting 12 will cause valve member 30 to 5 pivot and float up to the closed position so as to block fluid from flowing back into central passage 28 of annular body 26.
Referring to FIGURES 6 through 9, there is illustrated the manner in which the preferred method can be used with a top insert 38. This is one application in which the fitting need not be oversized. Referring to FIGURE 6, there is provided top insert 38 that includes annular body 26 and valve member 30.
Referring to FIGURES 8 and 9, annular body 26 is inserted in flow opening 14 at top 1.8 of fitting 12. Referring to FIGURE
Central passage 28 of anriular body 26 is aligned to communicate with an interior flow passage 36 of fitting 12.
Various styles of backwater valve 10 will now be described.
Referring to FIGURE 4, there is illustrated a normally closed backwater valve :LO. Annular body 26 is positioned in flow opening 14 at first end 22 of fitting 12 with pivotal connection 32 is positioned toward top 18 of fitting 12. Valve member 30 pivots to the closed position by force of gravity.
The use and operati_on of normally closed backwater valve 10 will now be described with reference to FIGURE 4. Referring to FIGURE 4, the force of. fluid flowing through central passage 28 pushes valve member 30 open so that fluid can pass through fitting 12. Gravity biases valve member 30 into the closed position which blocks fluid from flowing back into central passage 28 of annular body 26.
Referring to FIGURE 5 there is illustrated a normally open backwater valve 10. Annular body 26 is inserted into flow passage 14 at first end 22 of fitting 12 with pivotal connection 32 of annular body 26 positioned toward bottom 20 of fitting 12. Valve member 30 is pivoted to the open position by force of gravity.
The use and operation of normally open backwater valve 10 will now be described with reference to FIGURE 5. Referring to FIGURE 5, fluid flowing through central passage 28 of annular body 26 flows over valve member 30 in the open position and through flow passage 36 of fitting 12. In the event that the flow of fluid reverses, rising backflowing fluid within flow passage 36 of fitting 12 will cause valve member 30 to 5 pivot and float up to the closed position so as to block fluid from flowing back into central passage 28 of annular body 26.
Referring to FIGURES 6 through 9, there is illustrated the manner in which the preferred method can be used with a top insert 38. This is one application in which the fitting need not be oversized. Referring to FIGURE 6, there is provided top insert 38 that includes annular body 26 and valve member 30.
Referring to FIGURES 8 and 9, annular body 26 is inserted in flow opening 14 at top 1.8 of fitting 12. Referring to FIGURE
6, valve member 30 has a first end 40 that is connected to pivotal connection 32, and a second curved end 42 that is adapted to rest on bottom 20 of fitting 12. Referring to FIGURES 8 and 7, valve member 30 is maintained in a diagonal position across flow passage 36 of fitting 12 by force of gravity.
The use and operation of backwater valve 10 with top insert 38 will now be described with reference to FIGURES 6 through 9. Referring to FIGURE 8, fluid flowing from through flow opening 14 at first end 22 forces curved second end 42 of valve member 30 up and away from bottom 20 of fitting 12 such that fluid can flow though flow passage 36 toward flow opening 14 at second end 24 of fitting 12. In the event that the flow of fluid through fitting 12 reverses, rising backflowing fluid will bias curved second end 42 of valve member 30 against bottom 20 of fitting 12 so as to block the flow of fluid back though flow opening 14 at first end 22 of fitting 12.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unlf=_ss the context clearly requires that there be one and only orie of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spi_rit and scope of the invention as hereinafter defined in the Claims.
The use and operation of backwater valve 10 with top insert 38 will now be described with reference to FIGURES 6 through 9. Referring to FIGURE 8, fluid flowing from through flow opening 14 at first end 22 forces curved second end 42 of valve member 30 up and away from bottom 20 of fitting 12 such that fluid can flow though flow passage 36 toward flow opening 14 at second end 24 of fitting 12. In the event that the flow of fluid through fitting 12 reverses, rising backflowing fluid will bias curved second end 42 of valve member 30 against bottom 20 of fitting 12 so as to block the flow of fluid back though flow opening 14 at first end 22 of fitting 12.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unlf=_ss the context clearly requires that there be one and only orie of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spi_rit and scope of the invention as hereinafter defined in the Claims.
Claims (4)
1. A method of fabricating a backwater valve, comprising the steps of:
firstly, providing a fitting having at least two flow openings with an inner diameter and a horizontal flow path between the at least two flow openings;
secondly, providing an annular body having a central passage and a flap valve member movable between a closed position blocking the horizontal flow path and an open position, the annular body having an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least two flow openings; and thirdly, inserting the annular body into the selected one of the at least two flow openings and securing the annular body in place by securing the outer diameter of the annular body to the inner diameter of the selected flow opening.
firstly, providing a fitting having at least two flow openings with an inner diameter and a horizontal flow path between the at least two flow openings;
secondly, providing an annular body having a central passage and a flap valve member movable between a closed position blocking the horizontal flow path and an open position, the annular body having an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least two flow openings; and thirdly, inserting the annular body into the selected one of the at least two flow openings and securing the annular body in place by securing the outer diameter of the annular body to the inner diameter of the selected flow opening.
2. The method as defined in Claim 1, wherein the fitting is oversized.
3. The method as defined in Claim 1, wherein the annular body is secured in place with adhesive.
4. A backwater valve, comprising:
a fitting having at least two flow openings with an inner diameter, the fitting having a horizontal flow path between the at least two flow openings;
an annular body having a central passage and a flap valve member movable between a closed position blocking the horizontal flow path and an open position, the annular body having an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least one horizontally oriented flow opening, the outer diameter of the annular body being attached to the inner diameter of the fitting; and the annular body being inserted into the selected one of the at least two flow openings and secured in place.
a fitting having at least two flow openings with an inner diameter, the fitting having a horizontal flow path between the at least two flow openings;
an annular body having a central passage and a flap valve member movable between a closed position blocking the horizontal flow path and an open position, the annular body having an outer diameter adapted for close fitting insertion within the inner diameter of a selected one of the at least one horizontally oriented flow opening, the outer diameter of the annular body being attached to the inner diameter of the fitting; and the annular body being inserted into the selected one of the at least two flow openings and secured in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2344321 CA2344321C (en) | 2001-04-18 | 2001-04-18 | Method of fabricating a backwater valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2344321 CA2344321C (en) | 2001-04-18 | 2001-04-18 | Method of fabricating a backwater valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2344321A1 CA2344321A1 (en) | 2002-10-18 |
| CA2344321C true CA2344321C (en) | 2010-04-13 |
Family
ID=4168849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2344321 Expired - Lifetime CA2344321C (en) | 2001-04-18 | 2001-04-18 | Method of fabricating a backwater valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2344321C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2722310A1 (en) | 2010-11-16 | 2012-05-16 | Gabe Coscarella | Backwater valve with float |
| CA2830404C (en) | 2013-10-21 | 2019-01-22 | Gabe Coscarella | Low profile overbalanced backwater valve |
| US11214953B2 (en) | 2019-02-19 | 2022-01-04 | Gabe Coscarella | Locked backwater valve |
-
2001
- 2001-04-18 CA CA 2344321 patent/CA2344321C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2344321A1 (en) | 2002-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20210419 |