Valveless, positive displacement pump
US4479759A · kind A · utility
19Cited by
8References
6Claims
0Family size
Inventor
Key dates
| Filing date | May 13, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | May 13, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B7/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump may be provided for valveless, positive-displacement, rotary operation having at least one piston operating within a cylinder and preferably describing a complex motion including both reciprocating and rotary motions whereby vacuum and pressure forces may be alternately created at ports into the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.