Method and associated apparatus for assembling and testing a plumbing system

• US 8,028,357 B2
• Filed: 10/31/2007
• Issued: 10/04/2011
• Est. Priority Date: 06/13/2000
• Status: Active Grant

• Current Assignee: WCM Industries Incorporated
• Original Assignee: WCM Industries Incorporated
• Inventors: Ball, William T.
• Primary Examiner(s): Glessner; Brian
• Assistant Examiner(s): MATTEI, BRIAN DAVID
• Application Number:
  US11/931,681
• Publication Number:
  US 20080098517A1
• Time in Patent Office: 1,434 Days
• Field of Search: 468/0, 468/3, 468/8
• US Class Current: 4/680
• CPC Class Codes: E03C 1/232 combined with overflow devices overflow devices for basins or baths per se E03C1/24
• CPC Class Codes: E03C 1/24 Overflow devices for basins or baths E03C1/232 takes precedence
• CPC Class Codes: E03C 2001/2413 Covers for temporarily closing off overflow outlets

Abstract

A system is provided for enhancing the interconnectability of a bathtub to a plumbing system. More specifically, provided is a flexible conduit and an overflow assembly that allows for a portion of the overflow assembly to be easily located with the wall of a bathtub. The flexible conduit provided allows for adjustability of the conduit to the openings of the bathtub. In addition, provided are methods and apparatus that facilitate testing of a plumbing assembly. Finally, an apparatus and methods are provided that protect portions of the finished bathtub assembly to decrease in the need for replacing said hardware. It is envisioned that aspects and inventions disclosed herein can be used in conjunction to facilitate the interconnection and protection of hardware associated with a bathtub.

Claims

1. A plumbing system for interconnection with a bathtub that has an overflow port and a drain port, comprising:

an overflow assembly for interconnection with the overflow port that includes;

an overflow pipe having a flange and a sleeve that extends outwardly from said flange, said sleeve having threads on an outer surface thereof; and

a nut threadably mounted on said sleeve with the bathtub therebetween, wherein said nut exerts pressure on said flange, said nut having an outer periphery with a series of radially extending lugs that frictionally detachably engage an inner surface of a flange of a cap that fits over said nut, wherein said cap is selectively positioned on said nut to direct an overflow of water from the bathtub to said overflow pipe;

a flexible pipe connected between said overflow assembly and said wastewater drain assembly, said flexible pipe being devoid of a valve operating mechanism; and

a waste water insert for selective engagement with a strainer that is associated with a wastewater drain assembly, said insert comprising a wall with a cylindrical first portion and a cylindrical second portion with a conical portion therebetween, said cylindrical first portion having a diameter greater than a diameter of said cylindrical second portion, said wall surrounding a bore and having an upper end, and a flange on said upper end extending outwardly from said cylindrical bore; and

the wall of said insert being spaced from cylindrical wall of the strainer wherein said cylindrical first portion being closer to said cylindrical wall of the strainer than said cylindrical second portion.

2. The system of claim 1 wherein the flange of said cap has a notch that is selectively positioned to direct the overflow of water into said overflow pipe.

3. The system of claim 1, wherein said sleeve includes a closure member selectively interconnected to an end thereof

4. The system of claim 3, wherein said closure member is a diaphragm.

5. The system of claim 1 wherein said flexible pipe has a generally non-corrugated inner surface.

6. The system of claim 1 wherein said insert has a groove that receives the resilient ring.

7. The system of claim 6 wherein said cylindrical wall of said insert has a second groove for receiving a second resilient ring that engages said cylindrical wall of the strainer to form a second seal.

8. The system of claim 1, further comprising:

a cap interconnected to said sleeve, said cap having a cylindrical body bounded by an outer face, said cylindrical body having interior threads and an annular flange that extends radially outwardly from an open end of the cylindrical body, and

a membrane affixed to said outer face and said flange to seal said open end of said cap.

9. A plumbing system for interconnection with a bathtub that has an overflow port and a drain port, comprising:

an overflow assembly for interconnection with the overflow port;

a wastewater drain assembly for interconnection to the drain port;

a pipe connected between said overflow assembly and said wastewater drain assembly; and

a waste water insert for selective engagement with a strainer interconnected to a strainer that is associated with said drain assembly, said waste water insert comprising a wall having a first portion and a second portion with a transition portion therebetween, said first portion having a diameter greater than a diameter of said second portion, and a flange on said upper end extending outwardly from said wall;

said wall of said insert being spaced from a wall of said strainer wherein said first portion being closer to said wall of said strainer than said second portion.

10. The system of claim 9, wherein said overflow pipe includes a flange and a sleeve that extends outwardly from said flange, said sleeve having threads on an outer surface thereof, and a nut threadably mounted on said sleeve with the bathtub therebetween, and wherein said nut exerts pressure on said flange, said nut having an outer periphery with a series of radially extending lugs that engage a cap that fits over said nut.

11. The system of claim 9, wherein said sleeve includes a closure member selectively interconnected to an end thereof.

12. The system of claim 9 wherein said pipe is flexible and has a generally non-corrugated inner surface.

13. The system of claim 9 wherein said insert has a groove that receives the resilient ring.

20. The plumbing system of claim 9, wherein said overflow assembly, comprises:

an overflow pipe including an upper and a lower end;

an elbow between said upper end and said lower end, said upper end being adapted to fit completely through an overflow port of the bathtub and having threads;

a lip extending radially outwardly from an outer surface of the overflow pipe between said elbow and said upper end that is adapted to engage an outer surface of the bathtub adjacent to the overflow port;

a nut element associated with said overflow pipe adapted to secure said overflow pipe to the end of the bathtub wherein a wall of the bathtub is positioned between said lip and said nut element, said nut element comprising threads compatible with said threads of said upper end and said nut element having a plurality of lugs extending radially from said nut element wherein said nut element and said plurality of lugs constitute a single-piece unit;

a means for preventing fluid flow through said overflow pipe; and

a cap selectively interconnected to said nut element.

21. The apparatus of claim 20, wherein said means for preventing fluid flow is a selectively removable diaphragm.

22. The plumbing system of claim 9, wherein said overflow assembly, comprises:

an overflow port having a flange, said overflow port associated with a threaded portion extending from said flange, said threaded portion adapted to pass through a wall of the bathtub and to be at least partially positioned within the bathtub;

a means for preventing fluid flow through said overflow port that is associated with said threaded portion, said means for preventing fluid flow sealing an outer end of said threaded portion;

a nut, having a threaded center opening, threadably mounted on said threaded portion of said overflow port, said nut being adapted to secure said flange to the wall of the bathtub by exerting pressure towards said flange; and

said nut having an outer periphery with a series of radially extending lugs which detachably engage an inner surface of a cap which fits over said nut.

23. The assembly of claim 22, wherein said means for preventing fluid flow is a selectively removable thin diaphragm.

24. The plumbing system of claim 9, wherein said overflow assembly, comprises:

an overflow pipe having an upper end portion and a lower end portion with an elbow portion positioned therebetween, said upper end portion having threads and defining a fluid inlet;

wherein said overflow pipe further comprises a lip that extends radially outwardly from an outer surface of said overflow pipe, said lip spaced from said fluid inlet and positioned between said elbow portion and said upper end portion;

a sealing element associated with said upper end portion that closes said fluid inlet to fluid flow;

a nut element having threads compatible with said threads of said overflow pipe, said nut element having at least one lug extending radially therefrom; and

a cap detachably associated with said at least one lug and covering at least a portion of said nut.

14. A plumbing system for interconnection with a bathtub that has an overflow port and a drain port, comprising:

a duct with a non-continuous outer surface having a first end and a second end, the second end extending away from a protrusion that extends from the duct and a means for fastening associated with said second end and in compressive relationship with said protrusion of the duct with the bathtub therebetween;

a wastewater drain assembly for interconnection to the drain port, said drain assembly including a drain pipe having an upper end with an annular flange that rests on a bottom wall of the bathtub, and a means for locking slidingly mounted over said drain pipe that is adapted to be tightened to secure said means for locking against a lower surface of the bottom wall of the bathtub;

a flexible pipe connected between said overflow assembly and said wastewater drain assembly, and

an insert for selective engagement with a strainer that is associated with said drain assembly comprising a wall surrounding a bore, said wall having a first portion and a second portion with a transition portion therebetween, said first portion having an outer dimension greater than an outer diameter of said cylindrical second portion, said wall having an upper end with a flange extending therefrom;

the wall of said insert being spaced from cylindrical wall of the strainer wherein said first portion being closer to said cylindrical wall of the strainer than said second portion;

and the second portion of said insert receiving a resilient ring that engages said cylindrical wall of the strainer.

15. The system of claim 14 wherein said duct includes threads positioned on an outer diameter thereof for engagement with threads positioned on an inner diameter of said means for fastening.

16. The system of claim 14 wherein said protrusion is a flange positioned between the first end and the second end of said duct, said second end being spaced from said flange wherein said second end is adapted to be positioned at least partially within the bathtub.

17. The system of claim 14 wherein said duct includes a selectively removable closure member.

18. The system of claim 17 wherein said selectively removable closure member is at least one of a diaphragm or a cap.

19. The system of claim 14 wherein said flexible pipe has a generally non-corrugated inner surface.