Cooking oil filtration systems and methods
US10413125B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jan 3, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J37/1271
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A used cooking oil filtration system (100) includes a housing (102) defining an interior space (104), a gas source (130), a gas inlet (134) fluidly coupled to the gas source (130) to permit the introduction of a gas to the interior space (104) of the housing (102). The housing (102) further includes a fluid inlet (108), a fluid outlet (114), and filter media (116) disposed proximate the fluid outlet (114). The housing (102) is at least partially immersed in used cooking oil (150) and gas pressure in the interior space is maintained at a first pressure level at which used cooking oil flows into the interior space. The gas source (130) increases the gas pressure in the interior space to a second pressure level at which the used cooking oil flows through the filter media and exits the housing (102) through the fluid outlet (114). Flowing the used cooling oil through the filter media (116) reduces the concentration of one or more contaminants present at a first contaminant level in the used cooking oil to a second contaminant level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.