Peristaltic pump with enhanced tube loading features
US4720249A · kind A · utility
Inventors
Key dates
| Filing date | May 21, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/1253
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump of the type in which a motor-driven hub rotates hub-carried rollers in stressing engagement against to compress a fluid-carrying tube seated in the pump, thereby to propel the liquid through the tube. The pump is characterized in that the functional positioning or loading of the fluid-carrying tubing into and the removal of the resiliently compressible, fluid-carrying tubing from the pump housing is facilitated by apparatus for retracting the tube-compression, fluid-impelling rollers radially inwardly toward the core or hub of the pump and away from an outer bounding wall of a channel in which the compressible section of the tubing is seated. The improvement described effectively removes the rollers as physical impediments during loading of the tube into, and during unloading of the tubing from the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.