Fluid pumps with shifters
US11493030B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2251/11
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an example, a fluid pump includes a shifter having a first end and pivotable about a second end, a cam rotatably engaged with the shifter, wherein the cam is to rotate about a cam shaft axis if the shifter pivots about the second end, a diaphragm fluidly engaged with a fluid cavity, a collar movable with a cam surface of the cam, wherein the collar is to compress the diaphragm so as to decrease the volume of the fluid cavity, a fluid inlet having a one-way inlet valve to only allow fluid into the fluid cavity, and a fluid outlet having a one-way outlet valve to only allow fluid out of the fluid cavity, wherein the one-way outlet valve is to allow fluid out of the fluid cavity upon the volume of the fluid cavity being decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.