Peristaltic pump assembly
US5263830A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 9, 1993 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Mar 9, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/082
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump assembly for pumping a fluid medium from a fluid source through a tubing having a compressible pumping section, which assembly comprises a housing including at least one support wall; a drive shaft journalled substantially loosely to the support wall; a plurality of cam plates eccentrically mounted on the drive shaft in a helical pattern along the drive shaft and rotatable together with the drive shaft for, during a rotation of the drive shaft, driving finger plates sequentially in a direction perpendicular to the drive shaft to cause respective finger tips of the finger plates to engage the pumping section thereby producing a moving zone of occlusion along the pumping section for pumping the fluid medium; and an adjustment mechanism mounted on the support wall for adjustably displacing the drive shaft together with the cam plates and the finger plates in a direction perpendicular thereto. The adjustment mechanism comprises a shaft bearing plate mounted on the support wall for movement in a linear direction parallel to the direction of movement of each finger plate and through which the drive shaft extends rotatably, and a drive member for adjustably moving the b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.