Method and apparatus for attenuating sound from vibratory screening machines
US7025210B2 · kind B2 · utility
2Cited by
0References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Nov 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B9/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of attenuating the sound emanating from a bank of a plurality of vibrating screens of a plurality of vibrating screening machines including the steps of providing a master pulse of known phase and frequency, comparing the phase and frequency of a plurality of vibrating screens with the known phase and frequency of said master pulse, and adjusting the phase and frequency of said bank of plurality of vibrating screens so that the waveforms produced thereby tend to cancel each other. An apparatus for implementing the method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.