Check valve assembly

• US 5,148,828 A
• Filed: 03/29/1991
• Issued: 09/22/1992
• Est. Priority Date: 03/29/1991
• Status: Expired due to Term

• Current Assignee: Ford Meter Box Company Incorporated
• Original Assignee: Ford Meter Box Company Inc The
• Inventors: Farnham, Scott C.
• Primary Examiner(s): Nilson, Robert G.
• Application Number:
  US07/677,098
• Time in Patent Office: 543 Days
• Field of Search: 137/218, 137/454.6, 137/512, 137/542
• US Class Current: 137/454.6
• CPC Class Codes: E03C 1/106 using two or more check valves
• CPC Class Codes: F16K 15/066 with a plurality of valve members
• CPC Class Codes: F16K 2200/204 in series
• CPC Class Codes: Y10T 137/7668 Retained by bonnet or closure
• CPC Class Codes: Y10T 137/7838 Plural
• CPC Class Codes: Y10T 137/7932 Valve stem extends through fixed spring abutment

Abstract

An angled check valve assembly having a housing with inlet and outlet passageways angled with respect to each other, and a spider spacer cage at a location which allows flow through the inlet passageway into the spider spacer cage where the flow is then angled and directed through the outlet passageway. One of the passageways has one-way check valve(s) therein to insure one-way flow from the inlet through the outlet passage. An installation entry is provided in the housing for insertion of the check valve(s). The installation entry is sealingly closed by a threaded closure member. The spider spacer cage is rotatable relative to the threaded closure so that, as the closure member is moved inwardly, at least one opening (in the side of spider spacer cage) can be kept in registry with one of the passageways. The spider spacer cage also forces the one-way valve(s) toward an abutment in the housing. The spider spacer cage is indexed to one end of the one-way valve(s), and the valve(s) are indexed to each other and/or the housing, to prevent the closure from moving axially to seal the entry when the one-way valve is inserted upside down so as to prevent flow from the inlet through to the outlet.

Claims

1. An angled check valve assembly, comprising:

a pipe housing means having an inlet passageway therein for connection to a fluid supply inlet and an outlet passageway connected to and angled to the inlet passageway to provide an exit outlet which directs fluid from the supply inlet at an angle with respect to its inlet direction;

check valve means, comprising plural checks valve assemblies, each having an outer casing dimensioned to be received in one of the passageways, for preventing reverse flow from the outlet to the inlet;

an installation entry in the pipe housing means to allow for passage of the check valve means into the one passageway of the pipe housing means;

a closure means for fluidly closing and sealing the installation entry;

a spider spacer cage means located between the closure means and the check valve means at a point where the two angled passageways intersect for providing an open passageway for liquid flow from the inlet passageway to be angled to the outlet passageway;

the spider spacer cage means having at least one opening in a side wall thereof aligned with one passageway and a second opening in an end thereof aligned with the outer passageway;

said spacer means being formed as a separate element from the closure means and being rotatable with respect thereto so as to allow the at least one opening to be aligned with said one passageway.

2. The angled check valve of claim 1, wherein the spider spacer cage is physically attached to the closure means so as to be axially movable therewith;

and wherein the closure means is axially movable with respect to the entry to close the entry.

3. The angled check valve of claim 2, further comprising positioning means in the one passageway for preventing the closure means from closing and sealing the installation entry if the check valve means is improperly installed in the passageway.

4. The angled check valve of claim 1, further comprising positioning means in the one passageway for preventing the closure means from closing and sealing the installation entry if the check valve means is improperly installed in the passageway.

5. The angled check valve of claim 3, wherein said positioning means limits axial movement of the spider spacer cage means to a fully inserted position to prevent the closure means from closing and sealing the installation entry when the valve means is inserted upside down in the one passageway such that it would prevent flow from the inlet passageway through the outlet passageway.

6. The angled check valve of claim 4, wherein said positioning means limits axial movement of the spider spacer cage means to a fully inserted position to prevent the closure means from closing and sealing the installation entry when the valve means is inserted upside down in the one passageway such that it would prevent flow from the inlet passageway through the outlet passageway.

7. The angled check valve of claim 5, wherein said positioning means comprises index means on at least one of the pipe housing means, the valve means, and the spider spacer cage means, said index means comprising a recess formed in at least one of said means that cooperates with an extension formed on another of said means.

8. The angled check valve of claim 6, wherein said positioning means comprises index means on at least one of the pipe housing means, the valve means, and the spider spacer cage means, said index means comprising a recess formed in at least one of said means that cooperates with an extension formed on another of said means.

9. The angled check valve of claim 5, wherein the valve means are plural stacked check valve units, and further comprising index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

10. The angled check valve of claim 6, wherein the valve means are plural stacked check valve units, and further comprising index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

11. The angled check valve of claim 7, wherein the valve means are plural stacked check valve units, and further comprising second index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

12. The angled check valve of claim 8, wherein the valve means are plural stacked check valve units, and further comprising second index means between the two stacked units for causing the stacked units to prevent the closure means for axially moving to close and seal the entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

13. An angled check valve assembly, comprising:

a housing means having an inlet passageway therein for connection to a fluid supply inlet at one angle and an outlet passageway connected to and angled to the inlet passageway to provide an exit outlet which directs fluid from the supply inlet at an angle with respect to its inlet direction;

check valve means, comprising plural check valve assemblies, each having an outer casing dimensioned to be received in one of the passageways, for preventing reverse flow from the outlet to the inlet;

an installation entry in the housing means to allow for passage of the check valve means into the one passageway of the housing means;

closure means for fluidly closing and sealing the installation entry upon axial movement with respect thereto;

spider spacer cage means located between the closure means and the check valve means at a point where the two angled passageways intersect for providing an open passageway for liquid flow from the inlet passageway to the outlet passageway;

the spider spacer cage means having at least one opening in a side wall thereof to be aligned with one passageway and a second opening in an end thereof to be aligned with the other passageway;

wherein the spider spacer cage means moves axially with the closure means when the closure means is axially moved to close off and seal the entry;

and index means between respective ends of at least two of the valve means and the spider spacer cage means and the housing means for limiting the movement of the spider spacer cage means and the closure means so as to prevent the closure means from closing off and sealing the entry when one of the valve means is inserted upside down in the one passageway such that it would prevent flow from the inlet passageway through the outlet passageway.

14. The angled check valve of claim 13, wherein the index means comprises a recess on at least one of the housing means, the valve means, and the spider spacer cage means that cooperates with an adjacent extension on at least one of another of the housing means, the valve means, and the spider spacer means.

15. The angled check valve of claim 14, wherein the recess is circular so as to allow rotation of the spider spacer cage means such that its at least one opening can be aligned with said one passageway.

16. The angled check valve of claim 15, wherein the valve means are plural stacked check valve units, and further comprising second index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the installation entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

17. The angled check valve of claim 14, wherein the valve means are plural stacked check valve units, and further comprising second index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the installation entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

18. The angled check valve of claim 13, wherein the valve means are plural stacked check valve units, and further comprising second index means between the two stacked units for causing the stacked units to prevent the closure means from axially moving to close and seal the installation entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

19. An angled check valve assembly comprising:

a pipe housing means having an inlet passageway therein for connection to a fluid supply inlet at one angle and an outlet passageway connected to and angled to the inlet passageway to provide an exit outlet which directs fluid from the supply inlet at an angle with respect to its inlet direction;

check valve means, comprising plural stacked check valve units, each having an outer casing dimensioned to be received in one of the passageways, for preventing reverse flow from the outlet to the inlet;

an installation entry in the pipe conduit means to allow for passage of the check valve means into the pipe housing means;

a closure means for fluidly closing and sealing the installation entry upon axial movement with respect thereto;

a spider spacer cage means located between the closure means and the plural spaced check valve units at a point where the two angled passageways intersect for providing an open passageway for liquid flow from the inlet passageway to the outlet passageway;

the spider spacer cage means having a caged configuration with at least one opening in a side wall thereof aligned with one passageway and a second opening in an end thereof to be aligned with the other passageway; and

index means for preventing the closure means for axially moving to closure and seal the installation entry when any one of the plural stack valve units is inserted upside down to prohibit flow from the inlet passageway through the outlet passageway.

20. The angled check valve of claim 19, wherein the spider spacer cage is rotatable, relative to said closure means, to allow the opening in the sidewall to be aligned with the passageway when the closure means is installed in the installation entry.

21. The angled check valve of claim 19, wherein the spider spacer cage is formed of molded plastic and is attachable, by means of a snap fit, to the closure means.

22. A check valve assembly, comprising:

housing means having an inlet and an outlet, and a passageway connecting the inlet and the outlet;

check valve means in said passageway for limiting flow to one direction between the inlet and the outlet, said check valve means comprising plural valve units, each having an outer casing dimensioned to be received in the passageway in a predetermined operational orientation;

an installation entry in the housing means to allow passage of the check valve means into said passageway;

closure means for closing and sealing the installation entry; and

means for preventing the closure means for closing and sealing the installation entry if the check valve means is improperly installed in the passageway in an orientation other than the predetermined operational orientation;

wherein said closure means comprises a threaded cap and a spider spacer cage separately formed such that the spider spacer cage is rotatably movable, relative to the threaded cap; and

wherein said spider cage has at least one opening in one side thereof and an opening in an end thereof, and wherein said spider spacer cage is positionable within said passageway when the closure means is installed so as to align the opening in the side with the inlet of the housing and the opening in the end with the check valve means.

23. A check valve assembly according to claim 22, wherein said means for preventing comprises a recess, formed in at least one of said housing means, said check valve means and said closure means, and an extension, formed on another of said means so as to be telescopingly received within said recess when the check valve means are properly installed in said passageway.

24. A check valve assembly, comprising:

housing means having an inlet and an outlet, and a passageway connecting the inlet and the outlet;

check valve means, comprising plural valve units, each having an outer casing dimensioned to received in said passageway for limiting flow to one direction between the inlet and the outlet;

an installation entry in the housing means to allow passage of the check valve means into said passageway; and

closure means for closing and sealing the installation entry;

wherein said closure means comprises a cap and a spacer, and wherein said spacer is attachable to and is rotatably movable relative to said cap; and

wherein said spacer has at least one opening in one side thereof and an opening in an end thereof, and wherein said spacer is rotatably positionable within said passageway when the closure means is installed so as to align the opening in the side with the inlet of the housing and the opening in the end with the check valve means.

25. A check valve assembly according to claim 24, wherein said spacer is formed of molded plastic and is attachable, by means of a snap fit, to the cap.

26. A check valve assembly according to claim 24, further comprising means for indicating improper installation of said check valve means in said passageway.

27. A check valve assembly according to claim 26, wherein said means for indicating comprises means for preventing the closure means from closing and sealing the installation entry if the check valve means is improperly installed in the passageway.

28. A check valve assembly according to claim 27, wherein said means for preventing comprises a recess, formed in at least one of said housing means, said check valve means and said closure means, and an extension, formed on another of said means so as to be telescopingly received within said recess when the check valves are properly installed in said passageway.

29. A check valve assembly, comprising:

housing means having an inlet and an outlet, and a passageway connecting the inlet and the outlet;

check valve means in said passageway for limiting flow to one direction between the inlet and the outlet, said check valve means comprising plural valve units, each having an outer casing dimensioned to be received in the passageway in a predetermined operational orientation;

an installation entry in the housing means to allow passage of the check valve means into said passageway;

closure means for closing and sealing the installation entry; and

means for preventing the closure means for closing and sealing the installation entry if the check valve means is improperly installed in the passageway in an orientation other than the predetermined operational orientation;

wherein said closure means comprises a threaded cap and a spider spacer cage separately formed such that the spider spacer cage is rotatably movable, relative to the threaded cap; and

wherein said spider spacer cage is formed of molded plastic and is attachable, by means of a snap fit, to the cap.