Peristaltic pump
US4906168A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/1253
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump which utilizes a length of elastic tubing in effecting pumping action comprising a frame; a pumping chamber on the frame including peristaltic pumping means for progressively squeezing and releasing consecutive portions of an intermediate section of the tubing to pump fluid in the tubing in a predetermined direction; and tubing feeding means on the frame comprising gripping means to engage the outer periphery of the tubing, on at least one section adjacent to the tubing intermediate section, and feed the tubing through the pumping chamber in the predetermined direction at a controlled rate during pumping of the fluid. Preferably, the means to engage and feed the tubing comprises a powered wheel or roller mechanism having a friction gripping surface to controllably feed the tubing into the pump chamber. The roller may be configured to engage both tubing being fed into and tubing being fed out of the pump chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.