A system and method is disclosed for indicating satisfactory times for titrating a chemical solution, e.g., cleaning product, used by a utility device to clean and/or sanitize various types of articles. The utility device is described in an exemplary embodiment as being a warewashing machine that ap
A system and method is disclosed for indicating satisfactory times for titrating a chemical solution, e.g., cleaning product, used by a utility device to clean and/or sanitize various types of articles. The utility device is described in an exemplary embodiment as being a warewashing machine that applies the chemical solution to articles provided to the machine on racks. The chemical solution is formed in a solution tank from a combination of at least one chemical product and at least one rinse agent. Whereas the chemical product is described as a detergent, the rinse agent is described as water. Over a time period including multiple wash cycles, the chemical product and the rinse agent are added to the solution tank, thereby changing conductivity of the chemical solution. The present invention senses various types of information associated with the formation of the chemical solution and applies one or more test conditions to the sensed information to determine satisfactory time periods for measuring concentration of the chemical product relative to the chemical solution. Indications of the occurrence of these satisfactory times are presented on a display module in a manner visible to field persons responsible for titrating the chemical solution.
대표청구항▼
What is claimed is: 1. A system for indicating on a display device a time period for titrating a chemical solution contained in a solution tank of a utility device, thie system comprising: a control module that determines whether sensed information associated with formation of the chemical solution
What is claimed is: 1. A system for indicating on a display device a time period for titrating a chemical solution contained in a solution tank of a utility device, thie system comprising: a control module that determines whether sensed information associated with formation of the chemical solution in the solution tank satisfies one or more test conditions related to satisfactory times for titrating the chemical solution; and a display module that displays a titration indicator upon satisfaction of each of the one or more test conditions. 2. A system as defined in claim 1, wherein the chemical solution comprises a chemical product and a rinse agent, and the control module defines a setpoint value associated with a desired concentration of the chemical product in the chemical solution. 3. A system as defined in claim 2, wherein the display device comprises a graphical user interface that enables a field person to select the setpoint value from a list of possible setpoint values. 4. A system as defined in claim 3, wherein the graphical user interface comprises an icon representing the titration indicator, and the graphical user interface displays the icon upon satisfaction of each of the one or more test conditions. 5. A system as defined in claim 2, further comprising: means for sensing information related to a current concentration level of the chemical product in the chemical solution, wherein the sensing means communicates the information to the control module for determination of the current concentration level. 6. A system as defined in claim 5, wherein the control module compares the current concentration level to a predetermined threshold percentage of the setpoint value and marks the one or more test conditions as satisfied if the current concentration level of the chemical product relative to the chemical solution is less than the predetermined threshold percentage. 7. A system as defined in claim 5, wherein the sensing means comprises: one or more conductivity cells located within the solution tank. 8. A system as defined in claim 5, wherein the utility device applies the chemical solution and the rinse agent to one or more articles during a wash cycle, and wherein the control module further controls dispensation of the chemical product into the solution tank. 9. A system as defined in claim 8, wherein the control module marks the one or more test conditions as satisfied if the current concentration level is less than a predetermined threshold percentage of the setpoint value and the chemical product is not being dispensed into the solution tank. 10. A system as defined in claim 8, wherein the control module further controls application of the rinse agent to the one or more articles. 11. A system as defined in claim 10, wherein the control module marks the one or more test conditions as satisfied if the current concentration level is less than a predetermined threshold percentage of the setpoint value, the rinse agent is not being applied to the one or more articles and the chemical product is not being dispensed into the solution tank. 12. A system as defined in claim 8, wherein the control module further detects whether the utility device is performing a wash cycle and marks the one or more test conditions as satisfied if the current concentration level is less than a predetermined threshold percentage of the setpoint value, the rinse agent is not being applied to the one or more articles, the chemical product is not being dispensed into the solution tank and the utility device is performing a wash cycle. 13. A system as defined in claim 12, wherein the utility device comprises a rinse module that applies the rinse agent to the one or more articles and a wash module that applies the chemical solution to the one or more articles. 14. A system as defined in claim 1, wherein the utility device is a warewashing machine that applies the chemical solution and a rinse agent to one or more articles being provided to a washing chamber of the warewashing machine on one or more article racks, wherein the chemical solution and the rinse agent are applied to the one or more articles over the course of a wash cycle associated with each of the one or more article racks. 15. A system as defined in claim 1, wherein the display module comprises: a graphical user interface that enables a field person to control and monitor warewashing operations of the wash cycle for each of the one or more article racks. 16. A system as defined in claim 15, wherein the graphical user interface comprises an icon representing the titration indicator, and the graphical user interface displays the icon upon satisfaction of each of the one or more test conditions. 17. A method as defined in claim 1, wherein the display module comprises: a light emitting diode (LED) through which a current is supplied to create the titration indicator.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (14)
Thomas J. Schultz ; Alan J. Campbell, Apparatus and method for remote sensing and receiving.
Venkatraman Chandrasekar ; Morgan Jeffrey A., Embedding web access mechanism in an appliance for user interface functions including a web server and web browser.
Brady Daniel F. (Eagan MN) Larson Spencer B. (Cottage Grove MN) Ziegler David B. (Eden Prairie MN) Johnson Charles B. (Eagan MN), Method and apparatus for controlling the concentration of a chemical solution.
Turner James R. (Aptos CA) Hosking Stephen G. (Santa Cruz CA) Livingston James W. (Santa Cruz CA), Microprocessor controlled liquid chemical delivery system and method.
Bailey Clyde A. (Hastings MN) Padelford Eric L. (Lakeland MN) Brady Daniel F. (Eagan MN) Koehler Eduardo S. (Rio de Janeiro BRX), Performance monitoring system for warewashing machines.
Brady Daniel F. (Eagan MN) McCall ; Jr. John E. (West St. Paul MN) Bailey Clyde A. (Hastings MN) Copeland James L. (Burnsville MN), Self-optimizing detergent controller.
Brady Daniel F. (Eagan MN) McCall ; Jr. John E. (West St. Paul MN) Bailey Clyde A. (Hastings MN) Copeland James L. (Burnsville MN), Self-optimizing detergent controller for minimizing detergent set-point overshoot.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.