Liquid flow instructional systems and methods of making and using same
US11037463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Dec 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B7/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A liquid flow instructional system for presenting a proportions problem and for allowing the proportions problem to be solved comprises an input container and a plurality of output containers selectively and fluidly coupled to the input container. The system has an adjustable valve having a plurality of configurable regions. Each of the plurality of configurable regions corresponds to one of the plurality of output containers. An activable switch is provided for initiating flow of liquid from the input container to the plurality of output containers in accordance with a user configuration of the plurality of configurable regions. The proportions problem is solvable by filling each of the plurality of output containers to capacity without spillage. The correspondence between the plurality of configurable regions and the plurality of output containers is indicated by a visible indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.