RFID controlled chemical porportioner and dispenser
US8261780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2008 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Apr 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/2233
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A chemical dispenser reads RFID tags on both chemical source and diluted chemical mixture containers. A dispensing button shifts and electric controller from low to high power state for such reading and initiation of dispensing when data read from such tags is determined compatible. A battery powers the controllers in both power states. A selector valve for selecting a chemical concentrate at one of several source stations also provides selected station information to the controller. A controller learn mode stores data from RFID tags on the concentrated chemical containers, with the controllers initiated in a high power state in response to entering the learn mode. An alternate embodiment substitutes an alternative receiving container such as a mop bucket, and a dispensing nozzle is provided with an RFID reader for reading an RFID tag on the alternative container. Methods are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.