Make-up dispense in a mass based dispensing system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-017/00
B67D-007/06
B67D-007/02
A47L-015/00
B67D-007/14
B67D-007/36
D06F-033/02
D06F-039/02
G01G-013/16
G01G-017/06
A47L-015/44
출원번호
US-0567266
(2009-09-25)
등록번호
US-9102509
(2015-08-11)
발명자
/ 주소
Buck, Christopher A.
Nelson, Wesley M.
Otting, Blake Roberts
출원인 / 주소
Ecolab Inc.
대리인 / 주소
Shumaker & Sieffert, P.A.
인용정보
피인용 횟수 :
1인용 특허 :
226
초록▼
A chemical product dispenser dispenses a chemical product having at least one active ingredient during a primary dispense cycle based on time or some other factor. After the chemical product has been dispensed, the dispenser determines the amount of chemical product that was dispensed. The dispenser
A chemical product dispenser dispenses a chemical product having at least one active ingredient during a primary dispense cycle based on time or some other factor. After the chemical product has been dispensed, the dispenser determines the amount of chemical product that was dispensed. The dispenser then determines whether the dispensed amount of chemical product is within a defined threshold of a desired amount. If not, the dispenser proceeds to dispense additional chemical product during one or more make-up dispense cycles until the threshold is satisfied.
대표청구항▼
1. A method comprising: dispensing a chemical product from a weight based dispenser for a predetermined period of time during a primary dispense cycle, the predetermined period of time based on a dispense rate corresponding to at least one previous primary dispense cycle and a desired amount of the
1. A method comprising: dispensing a chemical product from a weight based dispenser for a predetermined period of time during a primary dispense cycle, the predetermined period of time based on a dispense rate corresponding to at least one previous primary dispense cycle and a desired amount of the chemical product to be dispensed;determining a dispensed amount of the chemical product based on a start weight of the chemical product in the dispenser at a start of the primary dispense cycle and an end weight of the chemical product in the dispenser after the predetermined period of time has elapsed;calculating a difference between the desired amount of the chemical product and the dispensed amount of the chemical product;determining whether a make-up dispense cycle is required based on the difference; andif a make-up dispense cycle is required, executing a make-up dispense cycle, wherein executing a make-up dispense cycle comprises: determining a dispense rate corresponding to the primary dispense cycle, wherein determining the dispense rate corresponding to the primary dispense cycle comprises dividing the dispensed amount of the chemical product by the predetermined period of time;computing a make-up dispense cycle time based on the difference between the desired amount and the dispensed amount and the dispense rate corresponding to the primary dispense cycle; anddispensing the chemical product for the computed make-up dispense cycle time, wherein dispensing the chemical product comprises eroding the chemical product with a diluent. 2. The method of claim 1 wherein determining whether a make-up dispense cycle is required comprises: comparing the difference between the desired amount of the chemical product and the dispensed amount of the chemical product with a make-up threshold; anddetermining that a make-up dispense cycle is required if the difference does not satisfy the make-up dispense threshold. 3. The method of claim 2 wherein determining that a make-up dispense cycle is required comprises determining that a make-up dispense cycle is required if the difference exceeds the make-up dispense threshold. 4. The method of claim 1, wherein the predetermined period of time is based on an average of a plurality of dispense rates each corresponding to one of a plurality of previous primary dispense cycles and a desired amount of the chemical product to be dispensed. 5. The method of claim 1 further comprising dispensing the chemical product during each of a plurality of iterative make-up dispense cycles until a make-up dispense threshold is satisfied. 6. The method of claim 1 further comprising computing the make-up dispense time by dividing the difference by the dispense rate corresponding to the primary dispense cycle. 7. The method of claim 1 further comprising computing the make-up dispense time by dividing the difference by an average of a plurality of dispense rates each corresponding to one of a plurality of previous primary dispense cycles. 8. A system comprising: a weight based chemical product dispenser that dispenses a chemical product during a primary dispense cycle for a predetermined primary dispense time, the predetermined primary dispense time based on a dispense rate corresponding to at least one previous primary dispense cycle and a desired amount of the chemical product to be dispensed;a measuring instrument that determines a starting weight of the chemical product at a beginning of the primary dispense cycle and that determines an ending weight of the chemical product at an end of the primary dispense cycle; anda controller that determines a dispensed amount of the chemical product based on a difference between the starting weight of the chemical product and the ending weight of the chemical product, calculates a difference between the desired amount of the chemical product and the dispensed amount of the chemical product, and determines whether a make-up dispense cycle is required based on the difference,further wherein if a make-up dispense cycle is required, the controller: determine a dispense rate corresponding to the primary dispense cycle, wherein the dispense rate corresponding to the primary dispense cycle is determined by dividing the dispensed amount of the chemical product by the predetermined primary dispense time;computes a make-up dispense cycle time based on the difference between the desired amount and the dispensed amount and the dispense rate corresponding to the primary dispense cycle; andcontrols dispensation of the chemical product during the make-up dispense cycle for the computed make-up dispense cycle time,wherein the chemical product dispenser dispenses the chemical product by eroding the chemical product with a diluent for the primary dispense time. 9. The system of claim 8, wherein the chemical product is one of a solid concentrate, an extruded solid, a pressed solid, a liquid, a gel, a paste, a powder, tablets, pellets, or a unit dose form of chemical product. 10. The system of claim 8, wherein the chemical product is contained within product capsule that is loaded into the dispenser. 11. The system of claim 8, wherein the chemical product dispenser dispenses the chemical product directly from the chemical product dispenser. 12. The system of claim 8 wherein the controller compares the difference between the desired amount of the chemical product and the dispensed amount of the chemical product with a make-up threshold and determines that a make-up dispense cycle is required if the difference does not satisfy the make-up dispense threshold. 13. The system of claim 8 wherein the controller computes the make-up dispense cycle time by dividing the difference by the dispense rate corresponding to the primary dispense cycle. 14. The system of claim 8 wherein the controller computes the make-up dispense cycle time by dividing the difference by an average of a plurality of dispense rates each corresponding to one of a plurality of previous primary dispense cycles. 15. A method comprising: dispensing a chemical product from a weight based dispenser for a predetermined period of time during a primary dispense cycle, the predetermined period of time based on a dispense rate corresponding to at least one previous primary dispense cycle and a desired amount of the chemical product to be dispensed;determining a dispensed amount of the chemical product based on a start weight of the chemical product in the dispenser at a start of the primary dispense cycle and an end weight of the chemical product in the dispenser after the predetermined period of time has elapsed;calculating a the difference between the desired amount of the chemical product and the dispensed amount of the chemical product;determining whether a make-up dispense cycle is required based on the difference; andif a make-up dispense cycle is required, executing one or more make-up dispense cycles, wherein executing each of the one or more make-up dispense cycles comprises: determining a dispense rate corresponding to a previous dispense cycle, wherein determining the dispense rate corresponding to the previous dispense cycle comprises dividing an amount of the chemical product dispensed during the previous dispense cycle by an amount of time during which the chemical product was dispensed during the previous dispense cycle;computing a make-up dispense cycle time based on the difference between the desired amount and the amount of chemical product dispensed during the primary dispense cycle and any previous make-up dispense cycles and the dispense rate corresponding to the previous dispense cycle; anddispensing the chemical product for the computed make-up dispense cycle time,wherein the chemical product dispenser dispenses the chemical product by eroding the chemical product with a diluent for the primary dispense time.
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