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US 7,891,523 B2Granted
Method for mass based dispensing
AssigneeEcolab Inc.
InventorsRichard J. Mehus, John E. Thomas, Thomas J. Batcher
Life of this patent
Estimating the term…
Abstract
A method and apparatus for dispensing of a product based on weight as a load cell (22) which supports a structure holding the product (20a) to be dispensed. The weight of the product (20a) that is dispensed is determined by use of a controller (23).
Claims17
A method, comprising:
- spraying a diluent on a solid product to dispense an active ingredient;
- continuously determining, as the diluent is sprayed, a combined weight of the solid product and any accumulated diluent;
- determining when a requested amount of the active ingredient has been dispensed based on the combined weight;
- and
- discontinuing the spray of diluent when the requested amount of the active ingredient has been dispensed.
2 more elements
A method comprising:
- applying a diluent to a solid product concentrate to dispense an active ingredient from the concentrate;
- determining a combined weight of the solid product concentrate and any accumulated diluent;
- determining a weight loss of the solid product concentrate based on the combined weight;
- determining when a requested amount of the solid product concentrate has been dispensed based on the weight loss of the solid product concentrate;
- and
- discontinuing application of the diluent when the requested amount of the solid product concentrate has been dispensed.
3 more elements
A method comprising:
- adding a diluent to a solid product concentrate to dispense the solid product concentrate;
- determining, as the diluent is added, a combined weight of the solid product concentrate and any accumulated diluent;
- determining a weight loss of the solid product concentrate based on the combined weight;
- determining when a requested amount of the solid product concentrate has been dispensed based on the weight loss of the solid product concentrate;
- and
- stopping addition of the diluent when the requested amount of the solid product concentrate has been dispensed.
3 more elements
Dependencies are inferred from the claim text.