Constant flow positive displacement pump
US4556371A · kind A · utility
18Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1983 |
| Grant date | Dec 3, 1985 |
| Priority date | — |
| Expiry date | Jul 18, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B11/0066
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A triplex or quadruplex pump having pump pistons which are equally phased apart and driven by a common drive shaft so that the velocity, i.e., speed with direction of all pistons in the particular pump is equal to zero at all times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.