WASTEWATER DRAIN STOPPER SYSTEM

Abstract

A wastewater drain assembly is provided that includes a selectively openable drain stopper. The wastewater drain assembly is interconnected to a fluid basin wherein a flange, which is interconnected to wastewater plumbing, is situated within the sink. The flange receives an insert that has a portion that conceals the flange.

Claims

1-19. (canceled)

20. A wastewater drain system comprising: a ball rod; a body comprising a first end, an opposite second end, and an opening positioned between the first end and the second end, wherein at least a portion of the ball rod is receivable through the opening; an insert configured to cover a sink flange, the insert positioned at the first end of the body; and a stem slidingly disposed at least partially within a hub of the insert and comprising a proximal end and a distal end, wherein the proximal end comprises a stopper and the distal end is coupled to the portion of the ball rod received within the body, wherein the ball rod is configured to actuate the stem, and wherein actuating the stem causes the stopper to engage or disengage the insert.

21. The system of claim 20, further comprising a threaded lower portion threadingly coupled to the distal end of the stem, wherein the threaded lower portion is coupled to the portion of the ball rod received within the body and extends between the stem and the ball rod.

22. The system of claim 21, wherein a length between the stopper and the ball rod is adjustable via the threaded lower portion.

23. The system of claim 20, further comprising a seal attached to the stopper such that the seal is positioned between the stopper and the insert.

24. The system of claim 20, further comprising the sink flange positioned at the first end of the body, wherein the first end of the body is threaded and the sink flange is threadingly coupled to the first end.

25. The system of claim 20, further comprising the sink flange positioned at the first end of the body, wherein the sink flange is integrated with the first end of the body.

26. The system of claim 20, further comprising the sink flange positioned at the first end of the body, wherein the insert further comprises an insert flange, and wherein the insert flange is glued to the sink flange.

27. The system of claim 20, further comprising the sink flange positioned at the first end of the body, wherein the insert further comprises an insert flange and an annular insert wall, and wherein the insert wall selectively couples to the sink flange, the first end of the body, or a combination thereof.

28. The system of claim 27, wherein the insert wall threadingly couples to the sink flange.

29. The system of claim 27, wherein the insert wall couples to an inner surface of the first end of the body with a seal member.

30. The system of claim 29, wherein the seal member is an O-ring.

31. The system of claim 20, wherein the hub defines a substantially cylindrical opening for receipt of the stem.

32. A wastewater drain system comprising: a ball rod; a body comprising a first end, an opposite second end, and an opening positioned between the first end and the second end, wherein at least a portion of the ball rod is receivable through the opening; an insert for a sink flange, the insert positioned at the first end of the body; and a stem slidingly disposed at least partially within a hub of the insert and comprising a proximal end and a distal end, wherein the proximal end comprises a stopper and the distal end is coupled to the portion of the ball rod received within the body, wherein the ball rod is configured to actuate the stem, and wherein actuating the stem causes the stopper to engage or disengage the insert.

33. The system of claim 32, further comprising a threaded lower portion threadingly coupled to the distal end of the stem, wherein the treaded lower portion comprises an opening configured to receive at least a portion of the ball rod.

34. The system of claim 33, wherein the threaded lower portion adjusts a length between the stopper and the ball rod.

35. The system of claim 32, further comprising a seal attached to the stopper.

36. The system of claim 35, wherein the ball rod is configured to actuate the stem between a first position that engages the seal against the insert preventing fluid flow through the insert and the body, and a second position that separates the seal from the insert allowing fluid flow through the insert and the body.

37. The system of claim 32, wherein the stopper is threadingly coupled to the proximal end of the stem.

38. The system of claim 32, wherein the insert further comprises a strainer element.

39. The system of claim 32, further comprising the sink flange positioned at the first end of the body, wherein the insert is selectively coupled to the sink flange, the first end of the body, or a combination thereof.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the general description of the invention given above and the detailed description of the drawings given below, serve to explain the principles of these inventions.

[0018] FIG. 1 is a partial perspective view of a common wastewater drain system;

[0019] FIG. 2 is a perspective view of a drain closure system of one embodiment of the present invention;

[0020] FIG. 3 is a cross-sectional view of FIG. 2 showing a stopper closed;

[0021] FIG. 4 is a cross-sectional view of FIG. 2 showing the stopper open;

[0022] FIG. 5 is a detailed cross-sectional view showing the upper end of the embodiment shown in FIG. 2;

[0023] FIG. 6 is a cross-sectional view of another embodiment of the present invention that employs an insert having external threads;

[0024] FIG. 7 is an exploded perspective view of another embodiment of the present invention that employs an external stopper;

[0025] FIG. 8 is a top perspective view of the embodiment shown in FIG. 7;

[0026] FIG. 9 is a cross-sectional view of FIG. 7; and

[0027] FIG. 10 is a cross-sectional view of FIG. 7, wherein the stopper is opened.

[0028] To assist in the understanding of one embodiment of the present invention the following list of components and associated numbering found in the drawings is provided herein:

TABLE-US-00001 # Component 2 Sink 6 Wastewater drain 10 Body 14 Sink flange 18 Threaded portion 22 Seal 26 Nut 30 Drain stopper 34 Ball rod 38 First end 40 Second portion 42 Ball 46 Link 50 Second end 54 Clip 110 Body 114 Sink flange 118 Threaded portion 122 Seal 126 Nut 130 Drain stopper 132 Nut 134 Ball rod 140 Distal end 142 Ball 146 Link 154 Clip 158 Rod 162 Thumbscrew 166 Knob 170 Valve stem 174 Seat 180 Insert 184 Upper seal 188 Holes 192 Seal 194 Insert wall 196 Inner surface 197 Lower surface 198 Shoulder 200 Lower surface 204 Shoulder 206 Flange wall 207 Groove 208 Boss 209 Recess 210 Body 214 Sink flange 222 Seal 226 Nut 230 Drain stopper 270 Valve stem 274 Seat 280 Insert 310 Body 314 Sink flange 326 Nut 330 Drain stopper 332 Seal 334 Ball rod 340 Distal end 342 Threaded portion 343 Opening 370 Valve stem 380 Insert 382 Hub 386 Drain stopper seal

[0029] It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the invention or that render other details difficult to perceive may have been omitted. It should be understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein.

DETAILED DESCRIPTION

[0030] FIGS. 2-5 show a drain closure system of one embodiment of the present invention. The drain closure system is comprised of a body 110 having a threaded portion 118 that terminates at a sink flange 114. As those of ordinary skill in the art will appreciate, the body of this and other embodiments of the present invention described herein may be made of multiple pieces. The body 110 also receives a nut 132 that secures a ball rod 134, wherein a portion of the ball rod 134 is positioned within the body 110. The body 110 is interconnected to the sink, wherein the flange 114 is in contact with a lower surface of sink. Next, a nut 126 and associated seal 122 are interface with a threaded portion 118 of the body 110 and tighten against a lower outer surface of the sink to secure the body 110 to the sink. After the body 110 is secured to the sink, it is also interconnected to the wastewater drain plumbing of the dwelling. The ball rod 134 is interconnected to a link 146 via a clip 154, or other device. The link 146 is secured to a rod 158 with a thumbscrew 162, or other device. The rod terminates at a knob 166, wherein movement of the rod 166 will selectively move the ball rod 134 and, thus, a portion of the ball rod 134 positioned within the body 110. The interconnection between the ball rod 134 and the body 110 should be well known by those of ordinary skill in the art.

[0031] The end of the ball rod 134 positioned in the body is interconnected to a distal end 140 of a valve stem 170. The distal end 140 of some embodiments is flared, or otherwise configured, to prevent hair and other debris from getting hung up on the ball rod 134 (see FIG. 4). The valve stem 170 also includes a proximal end comprised of a drain stopper 130. As shown in FIGS. 3 and 4, the drain stopper 130 cooperates with a seat 174 located within the body 110 to selectively allow fluid out of the sink.

[0032] The drain stopper 130, seat 174, etc. are concealed by an insert 180. The insert 180 includes an upper surface 184 with a plurality of holes 188 that allow water, but not large items from entering the drain plumbing. The insert has a wall 194 that accommodates a seal 192 that cooperates with an inner surface 196 of the body to secure the insert 180 the body 110. The wall 194 has a lower surface 200 that engages a shoulder 204 of the body 110 or the flange 114. Because the seal 192 does not permanently secure the insert 180 the body 110, if the insert becomes damaged, stained, or marred, or if the user wishes to change the aesthetic appearance of the sink, the insert 180 can be quickly removed and replaced without replacing the remainder of the wastewater system.

[0033] Again, the insert 180 of this embodiment of the present invention will selectively interconnects to a drain flange and associated drain plumbing by way of a seal 192 that selectively engages the inner surface 196 of the drain flange wall 206, i.e., an interference fit (see FIG. 5). The seal 192 may fit within a groove integrated into the insert wall, or within outwardly extending protrusions on the insert wall. Also, multiple seals can be employed, and an enlarged seal may be employed. Those of ordinary skill in the art should appreciate that other interconnection methods or schemes are contemplated. For example, the interconnection methods described in U.S. Pat. Nos. 6,154,898, 7,503,083, 8,607,376, 9,015,870, 9,015,876, and insert interconnection methods similar thereto, may be used to selectively interconnect the insert 180 to the drain flange 114 without departing from the scope of the present invention. Furthermore, some embodiments the present invention: 1) do not employ a seal, and rely on adhesives to secure the flange to the drain flange; 2) do not employ an insert wall, wherein a circular plate is adhered or otherwise interconnected to the drain flange; 3) employ a flange with a downwardly-extending lip for selective engagement onto an outer edge of the drain flange; 4) employ a cylindrical insert wall that selectively engages seals or other interconnection device is associated with the sink strainer or drain plumbing; or 5) employ mating devices that selectively engage with corresponding mating features on the train strainer, i.e., a bayonet fitting or snap in connection.

[0034] FIG. 2 shows another feature of some embodiments of the present invention. As shown, the flange 114 is interconnected to the threaded portion 118 of the body by way of a cylindrical, semi-cylindrical, or conical wall 206 having the inner surface 196 described above. At least one groove 207 is provided in the wall 206. Water, which does not exit the sink via the openings 188 in the insert 180, can exit the sink through any gap between the insert flange 180 and the sink drain flange 114 and into the drain plumbing via the groove(s) 207.

[0035] As discussed above, FIGS. 3 and 5 show the wastewater drain with the drain stopper 130 in a closed position. Here the drain stopper 130 is abutted against the seat 174 which prevents fluid from entering the body 110. This configuration is achieved by pulling the knob 166 upwardly to move the attached rod 158 and link 146 upwardly. Movement of the rod 158 upwardly rotates the end of the ball rod 134 positioned within the body 110 about a ball 142 downwardly, which pulls a distal end 140 of the valve stem 170 downwardly.

[0036] FIG. 3 shows another feature provided by some embodiments of the present invention that facilitates installation. Here, a boss 208 that receives the nut 132 is positioned within a recess 209 that locates an outer surface of the boss 208 at a dimension equal to or less than the outer dimension of the body 110. This embodiment facilitates installation by allowing the body 110 to be dropped into the sink outlet. The nut 132 may have outer protrusions, i.e., wings, that facilitate tightening. In contrast, the prior art system shown in FIG. 1 has a larger boss, which does not fit through the drain outlet. To install the prior art system a plumber must position an upper edge of the body through the drain outlet and fasten the sink flange thereto. Then, the nut 22 is used to secure the body 10 to the sink 2. As those of ordinary skill in the art will appreciate, this is a two-hand or two-person operation.

[0037] FIG. 4 shows the wastewater drain system in an open position wherein the rod 158 has been pushed downwardly to rotate the end of the ball rod 134 upwardly to push the valve stem 170 upwardly, thereby moving the attached valve stem 170 away from the seat 174 to open the fluid flow path from the sink to the body 110.

[0038] FIG. 6 shows another embodiment of the present invention where the insert 280 is selectively interconnected to a sink flange 214. Other features of this embodiment are similar to those employed by the embodiments described above. FIG. 6 also shows that sink the flange 214 does not need to be integral to the body to 10, but may be threateningly engaged thereto. The remaining operation of this embodiment of the present invention is similar to or same as that described above, wherein a drain stopper 230, a valve stem 270, a seat 274, a seal 222, and a nut 226 are provided.

[0039] FIGS. 7-10 show another embodiment of the present invention wherein the drain stopper 330 is external to the body 310. Here, the drain stopper 330 comprises a downwardly-extending stem 370 and a threaded lower portion 342. The threaded portion 342 is operatively interconnected into the stem 370, thereby allowing the length between the stopper 330 and a distal end 340 to be altered if needed. The threaded portion 342 also includes an opening 343 for receipt of an end of the ball rod 334 positioned within the body 310. Here, the sink flange 314 is selectively interconnected to or integrated with the body 310.

[0040] This embodiment also includes an insert 380 with a hub 382 that is attached, e.g., glued, to the flange 314. The insert 380 may also include a wall that selectively interconnects to the sink flange or body as is shown in the embodiments discussed above. The hub 382 provides a cylindrical opening for receipt and securement of the stem 370 as shown in FIGS. 8 and 9. Upon pulling a knob upwardly, (see FIG. 2, for example,) the stem 370 and threaded portion 342 are pulled downwardly, which pulls the stopper 330 and attached seal 386 into engagement with the insert 380 to close the body 310 to the flow. The knob is pushed downwardly, the end of the ball rod 334 moves upwardly, which moves the stem 370 upwardly to separate the seal 386 from the insert 380 allow fluid to flow into the body.

[0041] While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. It is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention, as set forth in the following claims. Further, it is to be understood that the invention(s) described herein is not limited in its application to the details of construction and the arrangement of components set forth in the preceding description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of including, comprising, or having and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.