Automatic cooking oil filter and level control apparatus

Claim 2

Apparatus for continuously filtering hot cooking oil, as defined in claim 2, and including means for maintaining oil in said reservoir at a predetermined hot temperature, whereby cooking oil stored in said reservoir is maintained in a liquid state.

Claim 3

Apparatus for continuously filtering hot cooking oil, as defined in claim 2, wherein said means for delivering contaminated cooking oil from a cooker to said inner tank includes an oil overflow connected to limit the maximum oil level in such cooker, and wherein said means for delivering filtered cooking oil from said outer tank to such cooker includes a continuously opeRated pump, whereby the oil level in such cooker is maintained at the overflow level.

Claim 4

Apparatus for continuously filtering hot cooking oil, as defined in claim 1, including a supply roll and a takeup roll positioned adjacent opposed ends of said inner tank, and wherein said elongated filter media comprises a long sheet of filter paper, said filter paper extending from said supply roll, along said porous bottom of said inner tank to said takeup roll.

Claim 5

Apparatus for continuously filtering hot cooking oil, as defined in claim 5, wherein said means for advancing said filter paper includes a motor operatively connected for rotating said takeup roll to wind the dirty portion of said filter paper on said takeup roll.

Claim 6

Apparatus for continuously filtering hot cooking oil, as defined in claim 6, and including wringer means for removing oil from said filter paper and for compacting the filtered contaminant into said filter paper before the dirty portion is wound on said takeup roll.

Claim 7

Apparatus for continuously removing contaminated cooking oil from a cooker, filtering the oil and returning the filtered oil to the cooker, said apparatus comprising, in combination, an outer tank, an inner tank having a porous bottom, said inner tank being positioned within said outer tank, an elongated disposable filter media, a supply roll and a takeup roll positioned adjacent opposed ends of said inner tank, said filter media extending from said supply roll, along said porous bottom of said inner tank and to said takeup roll, means for delivering contaminated cooking oil from the cooker to said inner tank, the oil flowing from said inner tank through said filter media and said porous bottom into said outer tank, means for continuously delivering filtered cooking oil from said outer tank to the cooker, means for advancing said filter media from said supply roll along said porous bottom and from along said porous bottom to said takeup roll whenever the oil level in said outer tank drops below a predetermined first level, an oil storage reservoir, oil overflow means connecting said outer tank to said reservoir, said oil overflow means limiting the maximum oil level in said outer tank, and means for delivering oil from said reservoir to said inner tank whenever the oil level in said outer tank drops below a predetermined second level below said first level.

Claim 8

Apparatus for continuously removing hot contaminated cooking oil from a cooker, filtering the oil and returning the filtered oil to the cooker, as defined in claim 8, and including wringer means for removing oil from said filter media and for compacting the filtered contaminant into said filter media as said filter media is advanced to said takeup roll.