Multichannel pump
US4365943A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1980 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Dec 22, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/086
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multichannel pump wherein the flow rate through each channel can be independently adjusted. In one embodiment there is a frame composed of upper and lower disc-shaped members which support a shaft in the center and a plurality of tube holders around the periphery. An eccentric cam is carried on the shaft and sequentially contacts resiliently deformable tubes in the respective tube holders. Each tube holder is independently adjustable toward and away from the path of travel of the cam and each can be removed for replacement or repair without affecting operation of the remainder of the apparatus. Also included are structures permitting the use of tubing having a low degree of elasticity, such as Teflon and the like. In another embodiment there is one or more cassette-like pumping units each of which contains two independently adjustable channels. The cassette-like units are so constructed that any reasonable number of the units can be combined to provide a multichannel pump having as many channels as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.