Metering pump
US6283727A · kind A · utility
1Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Apr 18, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The compact, easily useable metering pump results from a structure including a housing (20) with a pumping chamber (34) within the housing (20). A diaphragm (36) is located in the pumping chamber (34). An inlet includes a check valve (50) for allowing fluid to flow to one side of the diaphragm (36) but not the reverse and an outlet including a check valve (56) allows fluid to flow from the pumping chamber (34) but not into it. A pneumatically operated hydraulic pump (16) is located in the housing (20) and cycles the diaphragm (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.