Air driven centrifuge having a tachometer
US4322029A · kind A · utility
9Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1980 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | May 29, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B9/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In accordance with the present invention, there is provided an air driven centrifuge including a rotor housing having an access door in which there is mounted the illuminating and sensing elements of a photo-optical tachometer with the elements so constructed and arranged that they are positioned over the rotor when the door is in a closed position. There is also provided a rotor cover having at least a portion of its surface conditioned to alternately absorb and reflect incident light, and digital display means to display the rotor speed in R.P.M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.