Sucker rod pump
US5104301A · kind A · utility
4Cited by
17References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A subsurface well pump is provided which is resitant to vapor locking. The pump is a reciprocating sucker rod pump which has a top inlet valve which comprises one or more hinged flapper valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.