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US4052319A Expired / Lapsed US ⏱️ 0.0 years remaining

Cooking oil filtration

Assignee: Individual
•
Filing: 1975-11-03
•
Granted: 1977-10-04
•
Expires: 1995-11-03
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Abstract

Abstract Filter for cooking oil formed of polyester or polytetrafluoroethylene having specific characteristics. The filter is removably supported on a frame which permits easy replacement of the filter.

Inventors

  • 👤 Bernard Friedman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 15:50
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1223; Y; Y10; Y10S; Y10S210/00; Y10S210/08

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 231 words
A filter for cooking oil, comprising: a filter support, said filter support being comprised of a first member having a first side portion, a second side portion opposite said first side portion, a first end portion and a handle portion extending from said first end portion, said first member being formed of a single first rod, and a second member in the form of a second rod extending between said first and second side portions to define a second end portion opposite to said first end portion, said second rod member including first and second hooked end portions said first hooked end portion being hooked around the first side portion of said first rod member and the second hooked portion being hooked around the second side portion of said first rod member; means for retaining the second member in position between said first and second side portions, said means for retaining the second rod member in position being comprised of first and second clips for receiving said hooked portions, said clips being removably secured to said first and second rod portions to prevent unhooking of said hooked portions from the first rod member; and a filter bag, said filter bag being removably supported on said filter support, said filter bag including sleeve portions, said first and second members being inserted into said sleeve portions to thereby removably support said filter bag.
Claim 2
Dependent Claim 231 words
A filter for cooking oil, comprising: a filter support, said filter support being comprised of a first member having a first side portion, a second side portion opposite said first side portion, a first end portion and a handle portion extending from said first end portion, said first member being formed of a single first rod, and a second member in the form of a second rod extending between said first and second side portions to define a second end portion opposite to said first end portion, said second rod member including first and second hooked end portions said first hooked end portion being hooked around the first side portion of said first rod member and the second hooked portion being hooked around the second side portion of said first rod member; means for retaining the second member in position between said first and second side portions, said means for retaining the second rod member in position being comprised of first and second clips for receiving said hooked portions, said clips being removably secured to said first and second rod portions to prevent unhooking of said hooked portions from the first rod member; and a filter bag, said filter bag being removably supported on said filter support, said filter bag including sleeve portions, said first and second members being inserted into said sleeve portions to thereby removably support said filter bag.
Claim 3
Dependent Claim 64 words
The apparatus of claim 1 wherein each of said first and second clips are U-shaped clips comprised of a first leg, a base and a second leg, said hooked portions being received in the space between the first and second legs, said first and second legs each containing a recessed portion to define gripping fingers for releasably engaging said first and second rod portions.
Claim 4
Dependent Claim 54 words
The filter of claim 1 wherein the filter bag is formed from a member selected from the group consisting of polyesters and polytetrafluoroethylene, said filter bag having a uniform pore size of from about 40 to about 60 microns and an open area of from about 20% to about 30% of the total area.
Claim 5
Dependent Claim 38 words
The filter of claim 1 and further comprising a stirrer formed of a single rod, said single rod including loop portions which fit over the handle portion of said filter support for storing the stirrer with the filter.
Claim 6
Dependent Claim 15 words
The filter of claim 1 wherein the first rod has hooked ends opposite said handle.
Claim 7
Dependent Claim 256 words
A filter for an open top vessel, comprising: a filter support, said filter support being comprised of a first rod and second rod, said first rod being bent to provide spaced elongated first and second opposite sides which converge and form an integral handle, said second rod having first and second ends, said second rod extending between the sides of the first rod opposite said integral handle, first and second means removably securing the first and second ends of the second rod to the first and second opposite sides of the first rod; and a tetrahedrally shaped filter bag having an open top, first and second side walls, a front wall and rear wall converging to form a closed filter bag bottom, said filter bag at the open top including first, second and third support means for removably supporting the filter bag on said filter support, said first support means extending along said first side wall and a portion of the rear wall and being removably supported on said first side of the first rod including the converging portion, second support means extending along the second side wall and a portion of the rear wall and being removably supported on said second side of the first rod including the converging portion, said third support means extending along said front wall and being removably supported on the second rod whereby the filter bag can be supported in a spread open position and can be removed from the support by removing the second rod from the first rod.
Claim 8
Dependent Claim 256 words
A filter for an open top vessel, comprising: a filter support, said filter support being comprised of a first rod and second rod, said first rod being bent to provide spaced elongated first and second opposite sides which converge and form an integral handle, said second rod having first and second ends, said second rod extending between the sides of the first rod opposite said integral handle, first and second means removably securing the first and second ends of the second rod to the first and second opposite sides of the first rod; and a tetrahedrally shaped filter bag having an open top, first and second side walls, a front wall and rear wall converging to form a closed filter bag bottom, said filter bag at the open top including first, second and third support means for removably supporting the filter bag on said filter support, said first support means extending along said first side wall and a portion of the rear wall and being removably supported on said first side of the first rod including the converging portion, second support means extending along the second side wall and a portion of the rear wall and being removably supported on said second side of the first rod including the converging portion, said third support means extending along said front wall and being removably supported on the second rod whereby the filter bag can be supported in a spread open position and can be removed from the support by removing the second rod from the first rod.
Claim 9
Dependent Claim 53 words
The filter of claim 6 wherein the filter bag is formed from a member selected from the group consisting of polyesters and polytetrafluoroethylene, said filter bag having a uniform pore size of from about 40 to about 60 microns and an open area of from about 20 to about 30% of total area.
Claim 10
Dependent Claim 29 words
The filter of claim 6 wherein the filter bag is a fabric formed from heat sealed threads of a member selected from the group consisting of polyesters and polytetrafluoroethylene.
Claim 11
Dependent Claim 15 words
The filter of claim 6 wherein the first rod has hooked ends opposite the handle.

References Cited (Backward Citations)

US1547761A Cited
US1823365A Cited
US2610740A Cited
US2658444A Cited
US3246767A Cited
US3616934A Cited
US3651947A Cited
US3765536A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-03 1981-04-04 1981-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-03 1985-04-04 1985-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-03 1989-04-04 1989-10-04 $7700.00 Window Closed / Lapsed

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