Filtering apparatus
US6808554B2 · kind B2 · utility
4Cited by
11References
25Claims
0Family size
Inventor
Key dates
| Filing date | Jun 4, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jun 4, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2267/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtering apparatus for a reflow oven includes a contaminated-gas inlet for receiving contaminated gas from a reflow oven; a filtering device configured to filter the received contaminated gas; a returned gas outlet for returning filtered gas to the reflow oven; a gas removal arrangement for allowing gas to escape from the apparatus; and a control arrangement for controlling the rate of gas flow through the gas removal arrangement such that in use the flow rate of contaminated gas flowing from a hotter region of the reflow oven to a cooler region of the reflow oven is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.