Peristaltic pump
US5468129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Aug 5, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/1253
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved peristaltic pump using a pumptube comprising an inner tube and an outer tube each of rigid fluoroplastic material, preferably polytetrafluoroethylene (PTFE), is provided. The pumping section of the pumptube which contacts the pressure rollers of the peristaltic pump is preformed or shaped into a flattened, oval-like shape which approximately conforms to the pumptube passageway in the peristaltic pump. The pressure rollers contact and compress the flattened side of the pumptube and, thereby, effect the transport or pumping of the fluid. Methods for preparing the pumptubes of this invention are also provided. Corrosive, hot, and/or high pressure fluids can be readily handled using the improved pumptubes and peristaltic pumps provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.