Fluid dispensing apparatus and method
US9227212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jan 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/028
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid dispenser for containing and dispensing metered amounts of fluid that includes a reservoir for containing fluid and a chamber positioned substantially within the reservoir for containing a quantity of the fluid. The fluid dispenser additionally includes a piston that is moveable within the chamber to draw fluid into the chamber when the piston is moved in a first direction with respect to the chamber, and to discharge fluid from the chamber when the piston is moved in a second direction opposite the first direction. Further, the fluid dispenser includes a user-manipulatable control coupled to the piston and rotatable about an axis to select one of at least two different metered quantities of fluid to be dispensed. The user-manipulatable control is further movable to move the piston relative to the chamber along the axis to selectively dispense the selected metered quantity of fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.