Cooking oil filtering

Claim 2

Deep fat cooking apparatus comprising a cooking pot, oil heating means connected to the cooking pot for heating cooking oil, drain means connected to the cooking pot for removing oil from the cooking pot, a filter connected to the drain means for filtering oil flowing through the filter from the drain means, a separate tank communicating with the filter for storing filtered oil from the filter, and propulsion means connected to the tank and to the cooking pot for flowing oil from the tank, whereby oil freely flows from the filter means to the tank and whereby filtered oil freely flows from the tank through the propulsion means, wherein the filter comprises a horizontally elongated housing having an opening near one end for receiving oil from the drain means and having a plurality of lateral openings for flowing oil into the tank.

Claim 3

The apparatus of claim 1 wherein the propulsion means comprises a two way valve, a first pipe connected between the two way valve and the tank and a second pipe connected between the two way valve and the drain means, a pump having an intake connected to the two way valve and having outflow means connected to the cooking pot and power means connected to the pump for driving the pump and further comprising means mounted in the tank and connected to the two way valve for changing the two way valve to connect the second pipe to the intake upon filtered oil in the tank being predeterminedly deplenished.

Claim 4

The apparatus of claim 1 wherein the tank comprises a horizontally disposed tank and wherein the filter is spacedly positioned within the tank above a bottom of the tank.

Claim 5

The apparatus of claim 3 wherein the filter is supported on legs above a bottom of the tank.

Claim 6

The apparatus of claim 1 wherein the filter comprises a horizontally elongated filter element receiver box having a plenum at one longitudinal end, connection means mounted on the plenum for connecting the drain means to the plenum, elongated filter core means mounted in the receiver box and having one end communicant with the plenum for receiving oil from the plenum, the filter core means comprising an elongated baffle frame having a plurality of transverse baffles for interrupting flow of oil through the baffle frame and for trapping large particles, each transverse baffle having an opening for passing oil in the direction of a subsequent baffle, a fine screen laterally surrounding the baffle frame for permitting flow of oil through the screen while entrapping particles on a side of the screen adjacent the baffles, the fine screen being constructed in an open ended body having a shape similar to the baffle frame and being slidable over the baffle frame, a secondary polishing screen having a similar shape and being slidable over the fine screen for filter refining oil passing from the fine screen through the secondary polishing screen, the polishing screen having handle means on an upper side thereof, and the receiver box having an upward opening slightly larger than the filter element means and having a movable cover at the openiNg whereby the cover may be removed and the filter element may be lifted from the receiver box by lifting the handle on the secondary polishing screen, the receiver box further comprising foraminous siding adjacent the filter element for permitting lateral flow from the secondary polishing screen through the foraminous siding.