Conductance based control system and method
US6387424B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67D1/0046
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to the system, apparatus, and method for controllably mixing a concentrate with a dilution substance using closed-loop feedback in order to improve the resultant substance. The present invention discloses a system, apparatus and method for sensing the conductivity of a diluted substance to provide feedback information for adjusting dispensing of a concentrate used to produce the resultant or diluted substance. The present invention also includes a system for dispensing beverages using the conductivity sensor such that the system controllably adjusts the dispensing of concentrate to maintain the resultant beverage within a desired concentration range based on conductivity sensing. The present invention also includes the method for sensing the conductivity of the resultant beverage and adjusting the dispensing of concentrate in response to the conductivity of the resultant beverage. The invention includes a conductivity sensor coupled to a dispensing portion downstream of the introduction of concentrate into the dilution liquid. The conductivity of the resultant mixed beverage is measured and the dispensing of the coffee concentrate is adjusted to mainta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.