Rotary pump having a reinforced flexible annular diaphragm
US5988998A · kind A · utility
30Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C5/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary diaphragm fluid pump includes a rigid tubular body with internal annular groove, a tubular flexible diaphragm whose central portion is caused to orbit by an eccentrically driven bearing. Preferably the diaphragm is a moulding which features an elastic fixed abutment between the inlet and outlet ports, and internal reinforcement to ensure that the full diaphragm stroke is achieved. Two such pumps may compliment each other to produce a pulsation free output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.