Pump apparatus
US5348451A · kind A · utility
22Cited by
10References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | May 15, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/142
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pumping apparatus has a linear electric motor (10; 40) reciprocally driving motor pistons (16; 45) hydraulically coupled with pump pistons (25) or with coupling pistons (51) mechanically connected with pump pistons (61) which move the fluid to be pumped. For undersea use, the coupling arrangements allow convenient separation and retrieval of subassemblies requiring relatively frequent servicing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.