Fine mesh screening
US5542548A · kind A · utility
15Cited by
14References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B2230/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screening system having a resiliently mounted frame with a screen extending thereacross. The frame is vibrated by a low frequency vibratory drive using eccentric weights. About the peripheral frame of the screen, a high frequency drive or drives is employed to vibrate the screen in the range of 20,000 Hz. The high frequency vibration is generated at the peripheral frame about the screen. The screen is responsive to the high frequency vibrations in a plate-like manner rather than as a membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.