Grease stopper
US6391074B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grease stopper assembly is provided which captures and contains the effluent discharged from the roof vents of commercial cooking facilities. The assembly includes a plurality of two or four hanger assemblies attached to the vent duct curbing lip. A filter housing, including four independent and interchangeable filter compartments, is received and held by the hanger assemblies such that the assembled filter housing circumvents the duct. The filter housing is reinforced by brackets at the joinder of each combination of filter compartments, and the filter compartments, being pentagonal, are reinforced by brackets at the pentagonal apex. Alternate hanger assemblies are provided which include extension members of various lengths to suspend the filter housing at the desired distance from the roof. The filter compartments contain individually replaceable filter elements, of various combinations, including a porous, ultraviolet light resistant layer, and an impermeable bottom layer of plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.