Filter with integral heating element
US6769765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jul 22, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14403
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus (22, 122) for filtering a substance (13) includes an electrically insulating substrate (30, 130) that separates a source volume (12) containing the substance (13) from a target volume (18). The substrate (30, 130) has a first side in fluid communication with the source volume (12) and a second side in fluid communication with the target volume (18). The substrate (30, 130) further includes a plurality of openings (42, 142) connecting the first side with the second side. The openings (42, 142) are sized to provide filtering fluid communication between the source volume (12) and the target volume (18) for at least one phase of the substance. A heater film (32) is deposited over selected portions of the substrate (30, 130). The heater film (32) contacts the substrate (30, 130) to heat at least a portion of the openings (42, 142).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.