Pump, device for recovering liquid ejection and image forming apparatus equipped with the pump
US6520618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16532
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a compact pump capable of simultaneous sucking/discharging desired volumes of fluid in a plurality of systems, which includes a separating wall dividing a cylinder into a plurality of fluid compartments, discharging ports and sucking ports mutually arranged at opposite sides of the respective fluid compartments with respect to longitudinal direction, a plurality of pistons accommodated in the respective fluid compartments so as to slide in the respective fluid compartments and to divide respective fluid compartments into two rooms, and a common piston rod for the pistons passing through the separating wall to reciprocate the pistons in fluid compartments respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.