Cleaning system, cleaning devices, instruction insert, and methods therefor
US11113993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jun 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B19/003
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A visual teaching aid (100) assists teaching a cleaning order for a predefined area (106). The visual teaching aid can include a legend portion (103) defining a plurality of portions (105) of the predefined area, while a predefined area portion (104) pictorially illustrates the plurality of portions. The legend portion can define a plurality of sequential numerical indicia (107) indicating a predefined order in which the plurality of portions should be cleaned. The predefined area portion can include a plurality of visual indicators (110) assigned to the plurality of portions on a one-to-one basis. The visual teaching aid can be included with one or more cleaning cloths (300,500) in a cleaning package assembly (700).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.