US20020032926A1 - Bathtub drain adapter - Google Patents
Bathtub drain adapter Download PDFInfo
- Publication number
- US20020032926A1 US20020032926A1 US09/494,265 US49426500A US2002032926A1 US 20020032926 A1 US20020032926 A1 US 20020032926A1 US 49426500 A US49426500 A US 49426500A US 2002032926 A1 US2002032926 A1 US 2002032926A1
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- US
- United States
- Prior art keywords
- drain
- bathtub
- gasket
- adapter
- threaded member
- 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.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/24—Overflow devices for basins or baths
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/24—Overflow devices for basins or baths
- E03C2001/2413—Covers for temporarily closing off overflow outlets
Definitions
- the present invention deals with an adapter for incorporation in a bathtub overflow for the permanent connection of the overflow assembly to the overflow outlet of the bathtub.
- a test plug is inserted into the overflow outlet, and a test plug is inserted into the drain outlet in the bottom of the bathtub.
- all of the other drain outlets in the building such as showers, sinks and lavatories, will be plugged to allow the entire waste system to be filled with water to the level required.
- water can be added to the bathtub to a point that is above the overflow, to test the permanent connection of the overflow assembly to the bathtub overflow outlet for leaks.
- FIG. 1 shows, in perspective, the cutaway of a typical bathtub installation including water service lines 1 and 2 feeding hot and cold service and selector knob 15 for directing water either through tub spigot 16 or, optionally, through pipe 3 to a shower overhead outlet (not shown).
- assembly 11 To drain water from tub 10 , assembly 11 is provided including down pipe 19 and tee 19 A which in turn is fed both from tub drain assembly 17 and overflow elbow 18 .
- FIG. 2 shows, in perspective, an assembly employed by the prior art for temporarily blocking overflow elbow 18 during those water tests as described above.
- foam gasket 9 is applied to elbow 18 .
- Elbow 18 is typical of such products offered by AB+A characterized by having pegs 4 symmetrically disposed upon face 26 on elbow 18 for centering foam gasket 9 thereon.
- test plug 8 having center screw 5 and wing nut 7 are applied to mating threads 6 to temporarily block elbow 18 and prevent the passage of water therethrough.
- the present invention broadly is directed to an adapter assembly for joining an overflow pipe to the side wall of a bathtub for permanently sealing the overflow line to the tub prior to the installation of a suitable overflow trim plate.
- the present expedient is capable of compressing the overflow pipe elbow to the side wall of the tub while compressibly capturing a foam gasket thus effectively preventing water seepage between the bathtub side wall and gasket enabling the tub to be filled above its overflow opening for suitable water testing.
- the pipe elbow can be configured with a threaded length which could be threadably joined to a nut capturing the tub side wall and gasket.
- a standard, unmodified pipe elbow can be fit with an adapter which again can be made to threadably receive a capture nut for compressibly joining a suitable gasket with a bathtub side wall.
- the adapter can be solvently welded to the elbow. In each instance, once the capture nut has been tightened, an effective water-tight seal is created between the gasket and tub side wall without the need for installation of the decorative overflow plate at that time.
- FIGS. 1 and 2 represent perspective views of prior art as discussed above.
- FIG. 3 a is an exploded view of one embodiment of the present invention.
- FIG. 3 b depicts, in perspective, the assembly of FIG. 3 a in use.
- FIGS. 4 and 5 are perspective views of two embodiments of the present invention, again, in exploded view.
- FIG. 6 is a side plan view of the present invention.
- FIG. 7 is a cross-sectional view of the assembly of FIG. 6 shown in use.
- FIG. 8 is a perspective view of an alternative embodiment of the present invention in exploded view.
- FIG. 9 is an illustrative view showing the hand operation of the alternative embodiment.
- FIG. 3 a down pipe 19 is shown being connected to overflow elbow 20 modified to enable the practice of the present invention.
- threaded member 23 is shown protruding from elbow 20 within the confines of protrusions 4 emanating from elbow 20 as shown.
- Threads 23 can be produced by extruding elbow 20 as a single unitary plastic part or, alternatively, an insert such as shown in FIGS. 4 and 5 as element 41 can be solvent welded to element 20 as desired.
- foam gasket 9 is then placed upon elbow 20 being centered by protrusions 4 located thereon. As noted in FIG.
- foam gasket 9 is intended to reside on the backside of tub 30 which, in turn, is provided with an opening enabling access to threaded member 23 .
- capture nut 21 can then be screwed down upon threaded member 23 using threads 22 to match therewith.
- the threaded member 23 could be formed with interior threads, and the capture nut 21 with outer threads.
- capture nut 21 is provided with flange 24 further optionally being configured with holes 25 enabling a suitable wire tool (not shown) to be inserted within holes 25 for increasing torque rotation of capture nut 21 to enable the capture nut to compressively draw elbow 20 to tub 10 as shown in FIG. 3 b to, in effect, tightly draw foam gasket 9 to the side wall of tub 10 creating, for the first time, a waterproof seal prior to the attachment of the later to be installed trim plate.
- test plug 8 is then screwed down upon elbow 20 as shown and described with reference to FIGS. 3A and 3B.
- FIGS. 4 and 5 show variations to the assembly of FIGS. 3 a and 3 b.
- FIGS. 4 and 5 differ only in the configuration of elbow 40 (FIG. 4) and elbow 80 (FIG. 5). The remaining elements being virtually identical between the embodiments of the two figures and thus have been numbered with like numerals.
- Elbow 80 shown in FIG. 5 is provided with protrusions 4 such as those shown in the previously discussed figures. Elbow of this nature are commercially available from AB+A. By contrast, elbow 40 of FIG. 4 is provided with flange 46 emanating from face 48 . Elbows of this nature are commercially available from Watco, Rapidfit, New Style AB+A (January, 1999).
- threaded insert 41 is provided for insertion within either elbow 40 or elbow 80 .
- Threaded insert 41 is shown having reduced diameter section 43 which is inserted within inner side wall 44 (FIG. 4) or 84 (FIG. 5) and the ridge created thereby acts as a natural stop for threaded insert 41 .
- threaded insert 41 can be solvent welded.
- foam gasket 9 is placed upon the elbow and centered. As shown in FIG. 5, gasket 9 would reside upon face 26 and be centered by protrusions 4 . Similarly, gasket 9 could be placed upon elbow 40 and centered by flange 46 . As noted previously, foam gasket 9 is inserted to reside behind the side wall of tub 10 as best shown by reference to FIG. 7.
- capture nut 21 is compressively screwed down mating screw threads 22 with threads 42 and tightened by use of a suitable wire wrench whose ends are inserted within holes 25 configured within flange 24 of capture nut 21 .
- down pipe 19 , and elbows 40 - 80 are compressively drawn to the side wall of tub 10 compressing foam gasket 9 thus preventing leakage of water 60 (FIG. 7) when the tub is filled above its overflow line.
- test plug 8 is inserted such that threaded screw 5 is caused to mate with threaded opening 51 (FIG. 6) and tightened by the application of wing nut 7 .
- FIG. 6 shows the present invention in side plan view.
- elbow 40 being of a standard off the shelf configuration, is provided with face 48 and flange 46 for accepting and centering foam gasket 9 thereon.
- Threaded insert 41 is fit within elbow 40 at opening 52 whereby reduced cross-sectional section 43 can be solvent welded to elbow 40 .
- Capture nut 21 is then screwed down upon the threaded section of threaded insert 41 to draw foam gasket 9 against the inner side wall of tub 10 .
- FIG. 7 creating a water-tight installation through the application of test plug 8 screwed down within elbow 40 by mating screw 5 within threaded opening 51 supported within elbow 40 by extruded protrusion 50 .
- test plug 8 can be removed by counter-clock rotation of wing nut 7 . Thereupon, a suitable trim plate (not shown) can be inserted against the finished surface of tub 10 without disturbing any of the remaining components as described above. In use, none of the additional elements employed to create a water-tight installation will be visible to the user in light of the decorative application of the trim plate.
- FIGS. 8 and 3 a differ only in the configuration of the capture nut. The remaining elements being virtually identical between the embodiments of the two figures and thus have been numbered with like numerals.
- the capture nut 21 may optionally be configured with holes 25 enabling a suitable wire tool (not shown) to be inserted within holes 25 for increasing torque rotation of capture nut 21 to enable the capture nut to compressively draw elbow to tub 10 as shown in FIG. 3 b to, in effect, tightly draw foam gasket 9 to the side wall of tub 10 .
- a suitable wire tool not shown
- the capture nut 100 may alternatively be configured with thumb tabs 101 , 102 to allow for easy assembly and disassembly. As illustrated in FIG. 9, an installer can use the thumb tabs 101 , 102 to tighten or loosen the capture nut 100 , with no special tools required. Additional thumb tabs or configurations may be added as desired.
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
A drain adapter assembly for joining an overflow pipe to a side wall of a bathtub for permanently sealing the overflow pipe to the tub prior to the installation of a suitable overflow trim plate. The present assembly is capable of compressing the overflow pipe to the side wall of the tub while compressibly capturing a foam gasket, thus effectively preventing water seepage between the bathtub side wall and gasket and thereby enabling the tub to be filled above its overflow opening for suitable water testing.
Description
- The present application claims priority from U.S. Provisional Patent application serial No. 06/117,781, filed Jan. 29, 1999, entitled “BATHTUB DRAIN ADAPTER.”
- The present invention deals with an adapter for incorporation in a bathtub overflow for the permanent connection of the overflow assembly to the overflow outlet of the bathtub. When the overflow is secured to the bathtub with the adapter, a test plug is inserted into the overflow outlet, and a test plug is inserted into the drain outlet in the bottom of the bathtub. Likewise, all of the other drain outlets in the building, such as showers, sinks and lavatories, will be plugged to allow the entire waste system to be filled with water to the level required. At this time, water can be added to the bathtub to a point that is above the overflow, to test the permanent connection of the overflow assembly to the bathtub overflow outlet for leaks.
- When plumbing a structure such as a house, the piping is subjected to at least two waste water tests, and inspection by a building official. The first test is done after the under floor or slab rough in is completed and requires ten feet of head pressure. A second test is required on “top out” before close in, meaning that after the plumbing vents are piped through the roof, and the bathtubs are set, the waste system must be filled to the level required and inspected for leaks by the building official before insulation, sheetrock or plaster can be installed. Changes to the building code over the years regarding test procedures for plumbing waste systems now require the vents as well as the drainage piping be tested. The current system of testing does not allow the overflow to be secured to the bathtub while it is plugged off to allow testing of the building waste system. The only way of securing the current design is by installing the overflow trim plate. The present invention alleviates the problem and allows for a leak proof overflow connection where there was no mechanical connection before.
- As further background, reference is made to FIG. 1 which shows, in perspective, the cutaway of a typical bathtub installation including
water service lines 1 and 2 feeding hot and cold service andselector knob 15 for directing water either throughtub spigot 16 or, optionally, throughpipe 3 to a shower overhead outlet (not shown). - To drain water from
tub 10,assembly 11 is provided including downpipe 19 and tee 19A which in turn is fed both fromtub drain assembly 17 andoverflow elbow 18. - As further background, reference is made to FIG. 2 which shows, in perspective, an assembly employed by the prior art for temporarily blocking
overflow elbow 18 during those water tests as described above. In use,foam gasket 9 is applied toelbow 18. Elbow 18 is typical of such products offered by AB+A characterized by havingpegs 4 symmetrically disposed uponface 26 onelbow 18 for centeringfoam gasket 9 thereon. Once the gasket is in place,test plug 8 havingcenter screw 5 andwing nut 7 are applied tomating threads 6 to temporarily blockelbow 18 and prevent the passage of water therethrough. - Despite the seeming acceptability of the assembly shown in FIG. 2, the prior art cannot maintain water-tight integrity of the overflow assembly to the tub during testing. Specifically, once the assembly has been completed, it is the assembly trim plate (not shown) which is employed to draw
elbow 18 to the inner side wall oftub 10. It is virtually impossible to install a trim plate whiletest plug 8 is in place. As such, one cannot test the water integrity of a tub installation including not only inspecting the installation for leakage throughelbow 18 but also between the inner wall oftub 10 andfoam gasket 9. - It is thus an object of the present invention to provide a means of permanently creating a water impervious seal between an overflow pipe tub side wall in order to enable water testing of the tub plumbing during a suitable waste water test.
- This and further objects of the present invention will be more readily appreciated when considering the following disclosure and appended drawings.
- The present invention broadly is directed to an adapter assembly for joining an overflow pipe to the side wall of a bathtub for permanently sealing the overflow line to the tub prior to the installation of a suitable overflow trim plate. The present expedient is capable of compressing the overflow pipe elbow to the side wall of the tub while compressibly capturing a foam gasket thus effectively preventing water seepage between the bathtub side wall and gasket enabling the tub to be filled above its overflow opening for suitable water testing.
- In a first embodiment, the pipe elbow can be configured with a threaded length which could be threadably joined to a nut capturing the tub side wall and gasket. In a second embodiment, a standard, unmodified pipe elbow can be fit with an adapter which again can be made to threadably receive a capture nut for compressibly joining a suitable gasket with a bathtub side wall. In a second embodiment, the adapter can be solvently welded to the elbow. In each instance, once the capture nut has been tightened, an effective water-tight seal is created between the gasket and tub side wall without the need for installation of the decorative overflow plate at that time.
- FIGS. 1 and 2 represent perspective views of prior art as discussed above.
- FIG. 3a is an exploded view of one embodiment of the present invention.
- FIG. 3b depicts, in perspective, the assembly of FIG. 3a in use.
- FIGS. 4 and 5 are perspective views of two embodiments of the present invention, again, in exploded view.
- FIG. 6 is a side plan view of the present invention.
- FIG. 7 is a cross-sectional view of the assembly of FIG. 6 shown in use.
- FIG. 8 is a perspective view of an alternative embodiment of the present invention in exploded view.
- FIG. 9 is an illustrative view showing the hand operation of the alternative embodiment.
- Turning first to FIG. 3a, down
pipe 19 is shown being connected tooverflow elbow 20 modified to enable the practice of the present invention. In comparingelbow 20 withelbow 18 of the prior art, it is seen that threadedmember 23 is shown protruding fromelbow 20 within the confines ofprotrusions 4 emanating fromelbow 20 as shown.Threads 23 can be produced by extrudingelbow 20 as a single unitary plastic part or, alternatively, an insert such as shown in FIGS. 4 and 5 aselement 41 can be solvent welded toelement 20 as desired. In continuing the practice of the present invention,foam gasket 9 is then placed uponelbow 20 being centered byprotrusions 4 located thereon. As noted in FIG. 3b,foam gasket 9 is intended to reside on the backside oftub 30 which, in turn, is provided with an opening enabling access to threadedmember 23. Working from the inner side wall oftub 30, capturenut 21 can then be screwed down upon threadedmember 23 usingthreads 22 to match therewith. Alternatively, the threadedmember 23 could be formed with interior threads, and thecapture nut 21 with outer threads. - As further noted in reference to FIG. 3a,
capture nut 21 is provided withflange 24 further optionally being configured withholes 25 enabling a suitable wire tool (not shown) to be inserted withinholes 25 for increasing torque rotation ofcapture nut 21 to enable the capture nut to compressively drawelbow 20 totub 10 as shown in FIG. 3b to, in effect, tightly drawfoam gasket 9 to the side wall oftub 10 creating, for the first time, a waterproof seal prior to the attachment of the later to be installed trim plate. In completing the assembly,test plug 8 is then screwed down uponelbow 20 as shown and described with reference to FIGS. 3A and 3B. - FIGS. 4 and 5 show variations to the assembly of FIGS. 3a and 3 b.
- FIGS. 4 and 5 differ only in the configuration of elbow40 (FIG. 4) and elbow 80 (FIG. 5). The remaining elements being virtually identical between the embodiments of the two figures and thus have been numbered with like numerals.
- Elbow80 shown in FIG. 5 is provided with
protrusions 4 such as those shown in the previously discussed figures. Elbow of this nature are commercially available from AB+A. By contrast,elbow 40 of FIG. 4 is provided withflange 46 emanating fromface 48. Elbows of this nature are commercially available from Watco, Rapidfit, New Style AB+A (January, 1999). - In operation, threaded
insert 41 is provided for insertion within eitherelbow 40 or elbow 80. Threadedinsert 41 is shown having reduceddiameter section 43 which is inserted within inner side wall 44 (FIG. 4) or 84 (FIG. 5) and the ridge created thereby acts as a natural stop for threadedinsert 41. As noted previously, threadedinsert 41 can be solvent welded. - Once threaded
insert 41 has been applied to a suitable elbow,foam gasket 9 is placed upon the elbow and centered. As shown in FIG. 5,gasket 9 would reside uponface 26 and be centered byprotrusions 4. Similarly,gasket 9 could be placed uponelbow 40 and centered byflange 46. As noted previously,foam gasket 9 is inserted to reside behind the side wall oftub 10 as best shown by reference to FIG. 7. - Once the assembly comprising down
pipe 19, threadedinsert 41 andfoam gasket 9 have been installed behind the side wall oftub 10,capture nut 21 is compressively screwed downmating screw threads 22 withthreads 42 and tightened by use of a suitable wire wrench whose ends are inserted withinholes 25 configured withinflange 24 ofcapture nut 21. In so doing, downpipe 19, and elbows 40-80 are compressively drawn to the side wall oftub 10 compressingfoam gasket 9 thus preventing leakage of water 60 (FIG. 7) when the tub is filled above its overflow line. To complete the assembly,test plug 8 is inserted such that threadedscrew 5 is caused to mate with threaded opening 51 (FIG. 6) and tightened by the application ofwing nut 7. - As noted previously, FIG. 6 shows the present invention in side plan view. In reference thereto,
elbow 40, being of a standard off the shelf configuration, is provided withface 48 andflange 46 for accepting and centeringfoam gasket 9 thereon. Threadedinsert 41 is fit withinelbow 40 at opening 52 whereby reducedcross-sectional section 43 can be solvent welded toelbow 40.Capture nut 21 is then screwed down upon the threaded section of threadedinsert 41 to drawfoam gasket 9 against the inner side wall oftub 10. Such an assembly, once in place, is shown in FIG. 7 creating a water-tight installation through the application oftest plug 8 screwed down withinelbow 40 bymating screw 5 within threadedopening 51 supported withinelbow 40 by extrudedprotrusion 50. - Once water testing has been completed,
test plug 8 can be removed by counter-clock rotation ofwing nut 7. Thereupon, a suitable trim plate (not shown) can be inserted against the finished surface oftub 10 without disturbing any of the remaining components as described above. In use, none of the additional elements employed to create a water-tight installation will be visible to the user in light of the decorative application of the trim plate. - Another alternative embodiment of the present invention is shown in FIG. 8. FIGS. 8 and 3a differ only in the configuration of the capture nut. The remaining elements being virtually identical between the embodiments of the two figures and thus have been numbered with like numerals. As discussed with reference to FIG. 3a, the
capture nut 21 may optionally be configured withholes 25 enabling a suitable wire tool (not shown) to be inserted withinholes 25 for increasing torque rotation ofcapture nut 21 to enable the capture nut to compressively draw elbow totub 10 as shown in FIG. 3b to, in effect, tightly drawfoam gasket 9 to the side wall oftub 10. As shown in FIG. 8, thecapture nut 100 may alternatively be configured withthumb tabs 101, 102 to allow for easy assembly and disassembly. As illustrated in FIG. 9, an installer can use thethumb tabs 101, 102 to tighten or loosen thecapture nut 100, with no special tools required. Additional thumb tabs or configurations may be added as desired. - Upon reading the subject application, various alternative constructions and embodiments will become obvious to those skilled in the art. These variations are to be considered within the scope and spirit of the subject invention. The subject invention is only to be limited by the claims and their equivalence.
Claims (20)
1. A drain adapter comprising:
a threaded member;
a capture nut; and
a gasket.
2. The drain adapter of claim 1 , wherein the threaded member comprises an elbow and threaded section formed as a single unitary piece.
3. The drain adapter of claim 1 , wherein the threaded member comprises a threaded insert formed to attach to a drain pipe.
4. The drain adapter of claim 2 , wherein the single unitary piece further comprises protrusions.
5. The drain adapter of claim 3 , wherein the drain pipe further comprises protrusions.
6. The drain adapter of claim 2 , wherein the single unitary piece further comprises a flange.
7. The drain adapter of claim 3 , wherein the drain pipe further comprises a flange.
8. The drain adapter of claim 1 , wherein the gasket comprises a foam gasket.
9. The drain adapter of claim 1 , wherein the capture nut comprises a flange having holes formed thereon.
10. The drain adapter of claim 1 , wherein the capture nut comprises a flange having at least two thumb tabs formed thereon.
11. The bathtub drain adapter of claim 1 , further comprising a test plug.
12. The drain adapter of claim 1 , further comprising a face plate.
13. A bathtub overflow drain test assembly comprising:
a drain pipe having a threaded member;
a gasket having an opening formed to receive the threaded member;
a capture nut configured to thread onto the threaded member; and
a test plug formed to seal the drain pipe.
14. The bathtub overflow drain test assembly of claim 13 , wherein the gasket forms a water-tight seal between the drain pipe and a backside of a bathtub, as the capture nut is tightened on a front side of the bathtub.
15. The bathtub overflow drain test assembly of claim 14 , wherein the drain pipe comprises an elbow and threaded section formed as a single unitary piece.
16. The bathtub overflow drain test assembly of claim 14 , wherein the threaded member comprises a threaded insert formed to attach to the drain pipe.
17. The bathtub overflow drain test assembly of claim 14 , wherein the capture nut comprises a flange having holes formed thereon.
18. The bathtub overflow drain test assembly of claim 14 , wherein the capture nut comprises a flange having at least two thumb tabs formed thereon.
19. A method for leak testing a bathtub overflow drain, the method comprising:
installing a gasket over a threaded member on a backside of the bathtub, the threaded member connected to a drain pipe;
installing a capture nut on the threaded member such that the drain pipe and gasket are drawn to the backside of the bathtub, compressing the gasket and thereby forming a water-tight seal;
installing a test plug in the capture nut to seal the drain; and
filling the bathtub with water above an overflow drain level.
20. The method of claim 19 , further comprising:
removing the test plug once the test is complete; and
installing a face plate over the capture nut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/494,265 US20020032926A1 (en) | 1999-01-29 | 2000-01-28 | Bathtub drain adapter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11778199P | 1999-01-29 | 1999-01-29 | |
US09/494,265 US20020032926A1 (en) | 1999-01-29 | 2000-01-28 | Bathtub drain adapter |
Publications (1)
Publication Number | Publication Date |
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US20020032926A1 true US20020032926A1 (en) | 2002-03-21 |
Family
ID=26815650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/494,265 Abandoned US20020032926A1 (en) | 1999-01-29 | 2000-01-28 | Bathtub drain adapter |
Country Status (1)
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US (1) | US20020032926A1 (en) |
Cited By (31)
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US20030192115A1 (en) * | 2002-03-28 | 2003-10-16 | Oropallo Robert A. | Plumbing fitting cover cap retention |
US20040026525A1 (en) * | 2002-05-20 | 2004-02-12 | Joachim Fiedrich | In radiant wall and ceiling hydronic room heating or cooling systems, using tubing that is fed hot or cold water, the tubing is embedded in gypsum or cement wallboard in intimate thermal contact therewith so that the wallboard heats or cools the room |
US6691411B2 (en) * | 2001-09-17 | 2004-02-17 | Wcm Industries, Inc. | Method of installing a wastewater drain assembly for a bathtub |
US20040068793A1 (en) * | 2002-08-16 | 2004-04-15 | Wcm Industries, Inc. | Method and means for an overflow assembly to bathtubs and the like |
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US20040117907A1 (en) * | 2000-06-13 | 2004-06-24 | Wcm Industries, Inc. | Method and apparatus for assembling and sealing bathtub overflow and waste water ports |
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US20080098517A1 (en) * | 2000-06-13 | 2008-05-01 | Wcm Industries, Inc. | Method and Associated Apparatus for Assembling and Testing a Plumbing System |
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US20100018590A1 (en) * | 2008-03-13 | 2010-01-28 | Thetford Corporation | Drain system |
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