IP Library › Granted Patent US 12,582,284
Granted Patent B2
US 12,582,284 · App. 18/339,531 · Granted Mar 24, 2026

Solid detergent dispenser for a washing machine

Inventors: Rahul Bharath Jairam (Minneapolis, MN); Daniel Davis Anderson (Eagan, MN); Steven James Lundberg (Minneapolis, MN); Thomas David LaVenture (Lakeland, MN); Marvin Harris York (Minneapolis, MN); Michael Patrick Kremer (Rosemount, MN)
Assignee: Ecolab USA Inc.
A47L15/4436A47L15/0055A47L15/4244A47L15/4246A47L15/4445A47L15/449A47L2501/07
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Quick Facts
Patent No.
US 12,582,284
App. No.
18/339,531
Granted
Mar 24, 2026
Kind
B2
Abstract

A system for dispensing a detergent solution from a solid detergent into a dishwasher includes a dispenser that can collect water sprayed into the dishwasher and use the collected water to produce the detergent solution by dissolving a portion of the solid detergent, controlling the amount of the detergent solution produced, and releasing the produced detergent solution between cleaning cycles. The dispenser can perform these functions automatically without being electrically powered.

Claims (36)

1 . A system for dispensing a detergent solution from a solid detergent into a dishwasher, the system comprising:

a mounting plate configured to be installed on an interior wall of the dishwasher; and

a dispenser configured to be detachably attached to the mounting plate, the dispenser including:

a detergent chamber configured to accommodate the solid detergent;

a liquid inlet in fluid communication with the detergent chamber, the liquid inlet configured to collect water sprayed into the dishwasher and to allow the collected water to enter the detergent chamber to form the detergent solution by dissolving a portion of the solid detergent; and

a liquid outlet in fluid communication with the detergent chamber and configured to release the formed detergent solution from the detergent chamber.

2 . The system of claim 1 , wherein the detergent chamber is configured to hold one or more blocks of the solid detergent providing for production of the detergent solution for multiple cleaning cycles performed by the dishwasher, the multiple cleaning cycles each including washing and rinsing periods.

3 . The system of claim 2 , wherein the detergent chamber is configured to hold one or more rectangular tablets of the solid detergent.

4 . The system of claim 1 , wherein the dispenser further comprises a liquid level control mechanism configured to set a liquid height limiting a level of the detergent solution in the detergent chamber.

5 . The system of claim 4 , wherein the liquid level control mechanism is configured to control a rate of flow of the collected water into the detergent chamber.

6 . The system of claim 4 , wherein the liquid level control mechanism is configured to allow for adjustment of the liquid height.

7 . A system for dispensing a detergent solution from a solid detergent into a dishwasher, the system comprising:

a mounting plate configured to be installed on an interior wall of the dishwasher; and

a dispenser configured to be detachably attached to the mounting plate, the dispenser including:

a detergent chamber configured to accommodate the solid detergent;

a liquid inlet in fluid communication with the detergent chamber, the liquid inlet configured to collect water sprayed into the dishwasher and to allow the collected water to enter the detergent chamber to form the detergent solution by dissolving a portion of the solid detergent; and

a liquid outlet in fluid communication with the detergent chamber and configured to release the formed detergent solution from the detergent chamber,

wherein the detergent chamber is configured to hold multiple rectangular tablets of the solid detergent providing for production of the detergent solution for multiple cleaning cycles performed by the dishwasher, the multiple cleaning cycles each including washing and rinsing periods.

8 . The system of claim 7 , wherein the liquid inlet comprises one or more openings, and the number of the one or more openings is determined to control an amount of the water to be collected for forming a desirable amount of the detergent solution.

9 . The system of claim 8 , wherein the liquid inlet comprises holes at a top of the detergent chamber.

10 . The system of claim 9 , wherein the liquid outlet comprises an opening sized to control a speed of the release of the detergent solution from the detergent chamber.

11 . The system of claim 7 , wherein the dispenser further comprises a liquid level control mechanism configured to set a liquid height limiting a level of the detergent solution in the detergent chamber.

12 . The system of claim 11 , wherein the liquid level control mechanism is configured to control a rate of flow of the collected water into the detergent chamber.

13 . The system of claim 11 , wherein the liquid level control mechanism is configured to allow for adjustment of the liquid height.

14 . A system for dispensing a detergent solution from a solid detergent into a dishwasher, the system comprising:

a mounting plate configured to be installed on an interior wall of the dishwasher; and

a dispenser configured to be detachably attached to the mounting plate, the dispenser including:

a detergent chamber configured to accommodate the solid detergent;

a liquid inlet in fluid communication with the detergent chamber, the liquid inlet including one or more openings and configured to collect water sprayed into the dishwasher and to allow the collected water to enter the detergent chamber to form the detergent solution by dissolving a portion of the solid detergent, the number of the one or more openings determined to control an amount of the water to be collected for forming a desirable amount of the detergent solution; and

a liquid outlet in fluid communication with the detergent chamber and configured to release the formed detergent solution from the detergent chamber.

15 . The system of claim 14 , wherein the liquid inlet comprises one or more holes at a top of the detergent chamber.

16 . The system of claim 15 , wherein the liquid outlet comprises an opening sized to control a speed of the release of the detergent solution from the detergent chamber.

17 . The system of claim 14 , wherein the detergent chamber is configured to hold one or more blocks of the solid detergent providing for production of the detergent solution for multiple cleaning cycles performed by the dishwasher, the multiple cleaning cycles each including washing and rinsing periods.

18 . The system of claim 17 , wherein the detergent chamber is configured to hold one or more rectangular tablets of the solid detergent.

19 . The system of claim 14 , wherein the dispenser further comprises a liquid level control mechanism configured to set a liquid height limiting a level of the detergent solution in the detergent chamber.

20 . The system of claim 19 , wherein the liquid level control mechanism is configured to control a rate of flow of the collected water into the detergent chamber.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2023
From: JAIRAM, RAHUL BHARATH; ANDERSON, DANIEL DAVIS; LUNDBERG, STEVEN JAMES; LAVENTURE, THOMAS DAVID; YORK, MARVIN HARRIS; KREMER, MICHAEL PATRICK
To: ECOLAB USA INC.
Reel/Frame 064098/0746 →
Continuity (3)
Continuation 17131158 · Dec 22, 2020
Provisional Application 62952844 · Dec 23, 2019
Related Publication 20230329518A1 · Oct 19, 2023
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