Patent ID: 9439537
Filing Date: 2016-09-13
CPC Classification: A47J

Claim Text:
1. A method of continuous, active filtration of cooking oil during food processing to reduce and control free-fatty-acid levels and undesirable coloration in the cooking oil, including: a. pumping oil from a cooking vessel through a first routing path comprising a first flat-bed pressure chamber, a first mesh filter screen, a first drip pan, and a receiver tank; b. straining the oil through the first mesh filter screen into the first drip pan which collects the oil into a receiver tank; c. diverting the flow of oil when the first mesh filter screen requires cleaning to a second routing path comprising a second flat-bed pressure chamber, a second mesh filter screen, a second drip pan, and said receiver tank; d. cleaning the first mesh filter screen by a cleaning process comprising: e. continuing to route the oil through the second routing path until the second mesh filter screen requires cleaning; f. rerouting the oil through the first routing path; g. cleaning the second mesh filter screen using the previously described cleaning process while the oil circulates through the first routing path; h. repeating the process described in the previous steps, alternating the oil flow between the first routing path and the second routing path, such that the first mesh filter screen is cleaned when the oil is diverted from the first routing path to the second routing path, and the second mesh filter screen is cleaned when the oil is diverted from the second routing path to the first routing path.