Micrometering pump
US10982986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Nov 26, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/164
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A metering pump includes a chamber having a proximal portion and a distal portion. A piston is movable in the chamber. A drive drives the piston reciprocally form a proximal dead center to a distal dead center. The distal dead center is at the distal portion and the proximal dead center is located at the proximal portion. An outlet valve at the distal portion allows fluid flow from the chamber if the piston is moved in the distal direction and blocks a fluid flow into the chamber if the piston is moved into the proximal direction. A seal seals the chamber if the piston is positioned at the distal dead center. An inlet valve allows a flow of fluid into the chamber if the piston is moved in the proximal direction and blocks a fluid flow out of the chamber if the piston is moved in the distal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.