IP Library › Granted Patent US 12,529,220
Granted Patent B2
US 12,529,220 · App. 18/636,491 · Granted Jan 20, 2026

Toilet bowl cleaning cup system

Inventor: Jerald Christopher Stanfield (Gilbert, AZ)
E03D9/038
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Quick Facts
Patent No.
US 12,529,220
App. No.
18/636,491
Granted
Jan 20, 2026
Kind
B2
Abstract

The system may comprise an overflow pipe within a cannister; the cannister configured to translate along at least a portion of a length of the overflow pipe; a bottom of the cannister configured to adjust to allow tank water to flow into a toilet bowl; a holding device configured to interface with the overflow pipe; the holding device configured to receive fill water; the holding device configured to retain a cleaning substance; and the holding device configured to allow the fill water to flow over the cleaning substance and into the overflow pipe.

Claims (21)

1 . A system comprising:

an overflow pipe within a cannister;

the cannister configured to translate along at least a portion of a length of the overflow pipe;

a bottom of the cannister configured to adjust to allow tank water to flow into a toilet bowl;

a holding device configured to interface with the overflow pipe;

the holding device configured to receive fill water;

the holding device configured to retain a cleaning substance; and

the holding device configured to allow the fill water to flow over the cleaning substance and be retained in the holding device for a period of time until the fill water rises to a level where the fill water reaches a level that rises above an inner cylinder over a hole and into the overflow pipe.

2 . The system of claim 1 , further comprising an inner cylinder over a hole in the holding device.

3 . The system of claim 1 , further comprising an inner cylinder over a hole in the holding device, wherein the fill water is retained in the holding device until the fill water reaches the height of the inner cylinder, then the fill water starts to overflow into the inner cylinder.

4 . The system of claim 1 , wherein the holding device includes a recessed area.

5 . The system of claim 1 , wherein the holding device includes a recessed area having a geometric shape that matches a geometric shape of the cleaning substance.

6 . The system of claim 1 , wherein the holding device is configured to receive the fill water from a fill tube.

7 . The system of claim 1 , wherein the holding device includes a cover.

8 . The system of claim 1 , wherein the holding device includes at least one of a removable cover, a hinged cover or a sliding cover.

9 . The system of claim 1 , further comprising at least one of an internal ledge, flare or side internal projection on the holding device to hold a clip that secures a fill tube onto the holding device.

10 . The system of claim 1 , wherein an outside bottom of the holding device includes one or more of at least one of ridges, cam, threads or press fit.

11 . The system of claim 1 , wherein the holding device is configured to receive at least one of a re-fill or replacement of the cleaning substance.

12 . The system of claim 1 , wherein a geometric shape of the cleaning substance is similar to the geometric shape of the holding device.

13 . The system of claim 1 , wherein the holding device is configured to directly receive the cleaning substance.

14 . The system of claim 1 , wherein the bottom of the cannister configured to adjust includes the bottom of the cannister configured to translate upward.

Continuity (1)
Related Publication 20250320707A1 · Oct 16, 2025
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