Variable flow rate mechanical pump assembly
US11401928B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2021 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Mar 1, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L13/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mechanical pump includes a motor with an output shaft, a cam coupled to the output shaft for rotating the cam when the motor is energized, and a driver with spaced ledges engaging the cam and driven linearly by the rotating cam. The piston is driven by the driver. A cylinder receives the piston therein and includes an inlet section for drawing fluid into the cylinder and an outlet section for pumping fluid out of the cylinder as the piston reciprocates in the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.