Self-filling graduated cylinder system
US10488244B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/0832
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A self-filling graduated cylinder system for efficiently filling a graduated cylinder with a chemical solution. The self-filling graduated cylinder system generally includes a graduated cylinder having an interior, an upper end, an upper opening in the upper end a lower end opposite of the upper end, and a check valve attached to the graduated cylinder near the lower end of the graduated cylinder. The check valve is adapted to allow a liquid chemical to flow upwardly through the check valve into the graduated cylinder and to prevent the liquid chemical within the interior of the graduated cylinder from flowing downwardly through the check valve. A vacuum device is fluidly connected to the graduated cylinder to draw the liquid chemical upwardly to an upper level within the graduated cylinder. Alternatively, a pump device pumps liquid chemical into the graduated cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.