Internal drain hair and debris straining assembly

Patent metadata

Field	Value
Publication number	US-11142897-B2
Application number	US-201715720280-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Sep 29, 2016
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

Various embodiments for a drain debris straining assembly are described, where the drain debris straining assembly can be positioned inside a drain to collect hair and other debris. A drain debris straining assembly in accordance with an embodiment of the present application includes a basket assembly. The basket assembly includes a basket body surrounding a hollow core and at least one opening configured to filter fluid to entrap debris. The basket assembly further includes a flexible rib configured to compress against an internal diameter of a drain flange to form a seal between the basket assembly and the drain flange. The drain debris straining assembly may also include a pop-up assembly having an interference ridge sized and positioned to contact at least one inner wall of the basket assembly to retain a vertical position of the pop-up assembly relative to the basket assembly.

First claim

Therefore, the following is claimed:

1. A drain debris straining apparatus, comprising:
a basket assembly configured to be positioned at least partially in a drain flange, comprising:
a basket body surrounding a hollow core, the basket body comprising a plurality of openings configured to filter fluid to entrap debris;
a first flexible rib positioned at a top end of the basket body having a diameter greater than a diameter of the basket body; and
a second flexible rib positioned at a bottom end of the basket body having a diameter greater than the diameter of the basket body, the second flexible rib being configured to fold upwards when the basket assembly is positioned in the drain flange and compress against an internal diameter of the drain flange to form a seal between the basket assembly and the drain flange; and

a pop-up assembly, comprising:
an interference ridge positioned at a bottom of the pop-up assembly, the interference ridge comprising a plurality of projections that project radially from a surface of the interference ridge that contact and form an interference fit with at least one inner wall of the basket assembly to retain a vertical position of the pop-up assembly relative to the basket assembly; and
a pop-up base positioned below the interference ridge having a diameter less than a diameter of the interference ridge;
wherein the pop-up assembly is configured to form a water-tight seal with a basin when the pop-up assembly is moved from an open position to a closed position.

2. The drain debris straining apparatus of claim 1 , wherein the plurality of openings extend horizontally along the basket body.

3. The drain debris straining apparatus of claim 1 , wherein the basket body comprises a top aperture and a bottom aperture.

4. The drain debris straining apparatus of claim 3 , wherein the basket body is substantially symmetrical and is formed of a flexible material that permits a stretching of the top aperture to facilitate placement of at least a portion of the pop-up assembly into the hollow core of the basket body.

5. The drain debris straining apparatus of claim 1 , wherein:
the basket body comprises an upper ridge and a lower ridge configured to contact the interference ridge of the pop-up assembly and maintain the pop-up assembly in a position between the upper ridge and the lower ridge of the basket body;
the upper ridge is sized and positioned to prevent an upwards movement of the pop-up assembly beyond a predetermined height; and
the lower ridge is sized and positioned to prevent a downward movement of the pop-up assembly lower than a predetermined depth.

6. The drain debris straining apparatus of claim 1 , wherein the pop-up assembly comprises a hollow interior configured to receive at least an upper portion of a factory post coupled to the drain flange.

7. The drain debris straining apparatus of claim 1 , wherein the pop-up base is tapered downwards from a body of the pop-up assembly.

8. The drain debris straining apparatus of claim 2 , wherein:
the pop-up assembly comprising a plurality of elongated fins that extend vertically along and project radially from a body of the pop-up assembly, the elongated fins forming channels that guide water into an interior of the basket assembly; and
the vertical position of the pop-up assembly is retained relative to the basket assembly through an interference fit, wherein the pop-up assembly comprises an interference ridge sized and positioned to contact at least one inner wall of the basket assembly and form the interference fit between the pop-up assembly and the basket assembly.

9. The drain debris straining apparatus of claim 1 , wherein the basket body comprises a plurality of spacers configured to maintain a separation between the second flexible rib and the basket body when the basket assembly is installed in the drain flange.

10. The drain debris straining apparatus of claim 1 , wherein the basket body comprises an annular grove located at a bottom surface of the basket body configured to provide flexibility when the second flexible rib is compressed.

11. The drain debris straining apparatus of claim 1 , wherein the debris comprises hair.

12. A method, comprising:
inserting a basket assembly into a drain flange, wherein the basket assembly comprises:
a basket body surrounding a hollow core, the basket body comprising a plurality of openings configured to filter fluid to entrap debris;
a first flexible rib positioned at a top end of the basket body having a diameter greater than a diameter of the basket body; and
a second flexible rib positioned at a bottom end of the basket body having a diameter greater than the diameter of the basket body, the second flexible rib being configured to compress against an internal diameter of the drain flange and fold upwards when the basket assembly is positioned in a drain flange to form a seal between the basket assembly and the drain flange; and

inserting a pop-up assembly into a top aperture of the basket assembly, wherein the pop-up assembly comprises:
an interference ridge positioned at a bottom of the pop-up assembly, the interference ridge comprising a plurality of projections that project radially from the interference ridge that contact and form an interference fit with at least one inner wall of the basket assembly to retain a vertical position of the pop-up assembly relative to the basket assembly; and
a pop-up base positioned below the interference ridge having a diameter less than a diameter of the interference ridge;
wherein the pop-up assembly is configured to form a water-tight seal with a basin when the pop-up assembly is moved from an open position to a closed position; and

adjusting the vertical position of the pop-up assembly relative to the basket assembly by pushing or pulling on the pop-up assembly.

13. The method of claim 12 , wherein adjusting the vertical position of the pop-up assembly comprises pulling the pop-up assembly upwards until the interference ridge of the pop-up assembly contacts an upper ridge of an interior of the basket body.

14. The method of claim 12 , wherein adjusting the vertical position of the pop-up assembly comprises pushing the pop-up assembly downwards until the interference ridge of the pop-up assembly contacts a lower ridge of an interior of the basket body.

15. The method of claim 12 , wherein the plurality of openings extend horizontally along the basket body.

16. The method of claim 12 , wherein a compression of the flexible rib against the internal diameter of the drain flange form a reservoir, wherein debris is retained outside of the basket body in the reservoir.

17. The method of claim 16 , further comprising:
removing the pop-up assembly from the basket body; and
removing the debris from the reservoir.

18. The method of claim 12 , wherein the pop-up assembly further comprises a pop-up head having a diameter wider than a body of the pop-up assembly, the pop-up head configured to be a sealing surface for the pop-up assembly.

19. The method of claim 18 , wherein the pop-up assembly further comprises a plurality of support members that project radially from a top distal end of the body of the pop-up assembly, the plurality of support members being coupled to a bottom surface of the pop-up head.

20. The drain debris straining apparatus of claim 1 , wherein the pop-up assembly further comprises:
a pop-up head having a diameter wider than a body of the pop-up assembly, the pop-up head configured to be a sealing surface for th

Assignees

• Danco Inc

Inventors

• Schuster Michael J

Classifications

• E03C1/264

  Separate sieves or similar object-catching inserts · CPC title

• B01D35/02

  Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks, (B01D35/05 takes precedence; {water pipe system filters E03B3/18, E03B7/07; dirt catchers in sewers E03F; filters or strainers for pipe-lines in general B08B, E03F; object or dirt catching devices in sinks or the like E03C1/26; suction strainers or filters for pumps F04B53/005, F04D29/70}) · CPC title

• B01D29/31

  Self-supporting filtering elements · CPC title

• E03C1/262 Primary

  combined with outlet stoppers · CPC title