Filter frame assembly
US10220341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Apr 7, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2265/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments of the inventions include a filter frame and an air filter. The air filter has filtration media and a wood fiber-based filter frame securing filtration media. The filter frame having an upstream facing surface. The upstream facing surface having an orientation substantially perpendicular to a direction of air flow through the filter. The filter additionally having a plurality of sides coupled to the upstream facing surface, the plurality of sides having an orientation substantially parallel to the direction of air flow through the filter, the direction of air flow through the filter defining an exterior side of the filter frame; and a folded edge defined between the upstream facing surface and a first side of the plurality of sides, the folded edge having a debossing on the exterior side of the filter frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.