Reciprocating pump
US5979296A · kind A · utility
1Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/141
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A communication path (32) for communicating a hermetically closed space (S) with an inlet port (20) is formed within a casing (1). An oil reservoir (30) having an inside capacity much greater than an inside capacity of the communication path (32) is formed in an intermediate part of the communication path (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.