Linear pump apparatus for dispensing liquids
US10987683B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 6, 2020 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Feb 6, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/2486
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid dispensing apparatus has a frame, a plurality of tubes supported by the frame, and a roller assembly supported by the frame. The roller assembly is movable between an upper position and a lower position. The roller assembly is cooperative with the plurality of tubes so as to apply compressive force to the plurality of tubes in the upper position and to release the compressive force in the lower position. The roller assembly is movable for a desired distance along the length of the plurality of tubes. The roller assembly is adapted to urge a liquid out of a lower end of the plurality of tubes by applying the compressive force to the plurality of tubes and moving the roller assembly downwardly along the plurality of tubes while the compressive force is applied to the plurality of tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.