IP Library Granted Patent US 7,704,397
Granted Patent B2
US 7,704,397 · App. 11/471,549 · Granted Apr 27, 2010

Coaxial full-flow and bypass oil filter having cap with blades

Assignee: Filtran LLC
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Quick Facts
Patent No.
US 7,704,397
App. No.
11/471,549
Granted
Apr 27, 2010
Kind
B2
Abstract

A fluid filter includes a first filter, a second filter coaxial with the first filter, an inlet adjacent the first and second filters, a first outlet adjacent the inlet, and a second outlet at a distal end from the inlet and the first outlet. Further, the first and second filters may be housed in a unitary canister or a canister that has a canister body coupled to a removable canister cap. The bypass flow filter includes a cap having a plurality of blades.

Claims (17)

1. A fluid filter comprising:

a cylindrical housing having a first housing end and an opposite second housing end;

a fluid outlet centrally disposed at the first housing end;

a fluid inlet annularly disposed about the fluid outlet at the first housing end;

a full flow filter disposed within the cylindrical housing, the full flow filter being cylindrical in shape and concentrically disposed in axial alignment with a central axis of the cylindrical housing;

a first fluid flow path annularly disposed between an outer surface of the cylindrical housing and an outer surface of the full flow filter, the first fluid flow path being sealed at the second housing end, the first fluid flow path to fluidly connect the fluid inlet to the outer surface of the full flow filter;

a bypass filter being disposed within the full flow filter, the bypass filter being cylindrical in shape and concentrically disposed in axial alignment with the central axis of the cylindrical housing;

a cap disposed at a first end of the bypass filter proximal to the first housing end, the cap sealing the first end of the bypass filter;

a plurality of blades disposed on the cap, the plurality of blades having different respective planes residing in alignment with the central axis of the cylindrical housing;

a second fluid flow path annularly disposed between an interior surface of the full flow filter and an exterior surface of the bypass filter, the second fluid flow path to fluidly connect the interior surface of the full flow filter to the fluid outlet and to fluidly connect the interior surface of the full flow filter to the exterior surface of the bypass filter;

a bypass outlet centrally disposed at the second housing end; and

a third flow path disposed along a central axis of the fluid filter, the third flow path being sealed at the first housing end, the third flow path to fluidly connect an interior surface of the bypass filter to the bypass outlet.

2. The fluid filter of claim 1 , wherein the fluid filter is a transmission fluid filter.

3. The fluid filter of claim 1 , wherein the fluid filter is an engine fluid filter.

4. The fluid filter of claim 1 , wherein the fluid filter is an hydraulic fluid filter.

5. The fluid filter of claim 1 , wherein the bypass filter comprises a fibrous media.

6. The fluid filter of claim 1 , wherein the bypass filter is replaceable.

Assignments (14)
RELEASE OF SECURITY INTEREST Recorded Mar 30, 2018
From: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
To: AG INDUSTRIES LLC; BUFFALO FILTER LLC; CHEMCO MANUFACTURING CO., INC.; FILTRATION GROUP LLC; FILTRAN LLC; JONELL FILTRATION PRODUCTS, INC.; POREX CORPORATION
Reel/Frame 045948/0379 →
SECURITY INTEREST Recorded Mar 29, 2018
From: AG INDUSTRIES LLC; AIR SYSTEM PRODUCTS LLC; CHEMCO MANUFACTURING CO., INC.; FILTRATION GROUP LLC; FILTRAN LLC; JONELL FILTRATION PRODUCTS, INC.; KAYDON CUSTOM FILTRATION CORPORATION; POREX CORPORATION; PURAFIL, INC.; POREX TECHNOLOGIES CORPORATION
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 045768/0001 →
RELEASE OF SECURITY INTEREST Recorded Oct 31, 2016
From: BANK OF MONTREAL, AS COLLATERAL AGENT
To: AG INDUSTRIES LLC; AIR SYSTEM PRODUCTS LLC; BUFFALO FILTER LLC; CHEMCO MANUFACTURING CO., INC.; FILTRATION GROUP LLC; FILTRAN LLC; JONELL FILTRATION PRODUCTS, INC.; KAYDON CUSTOM FILTRATION CORPORATION; PURAFIL, INC.; POREX CORP.
Reel/Frame 040543/0078 →
SECURITY INTEREST (FIRST LIEN) Recorded Nov 21, 2013
From: AG INDUSTRIES LLC; BUFFALO FILTER LLC; CHEMCO MANUFACTURING CO., INC.; FILTRATION GROUP LLC; FILTRAN LLC; JONELL FILTRATION PRODUCTS, INC.; POREX CORPORATION
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 031693/0608 →
SECURITY INTEREST (SECOND LIEN) Recorded Nov 21, 2013
From: AG INDUSTRIES LLC; BUFFALO FILTER LLC; CHEMCO MANUFACTURING CO., INC.; FILTRATION GROUP LLC; FILTRAN LLC; JONELL FILTRATION PRODUCTS, INC.; POREX CORPORATION
To: BANK OF MONTREAL, AS COLLATERAL AGENT
Reel/Frame 031694/0487 →
SECURITY AGREEMENT Recorded Nov 2, 2012
From: CHEMCO MANUFACTURING CO., INC.; FILTRAN LLC; FILTRATION GROUP LLC
To: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT
Reel/Frame 029232/0325 →
RELEASE OF SECURITY INTEREST Recorded Nov 2, 2012
From: COLE TAYLOR BANK
To: FILTRATION GROUP LLC (F/K/A FILTRATION GROUP INCORPORATED); FILTRAN LLC
Reel/Frame 029235/0004 →
SECURITY AGREEMENT Recorded Dec 27, 2010
From: FILTRAN, LLC; FILTRAN HOLDINGS
To: COLE TAYLOR BANK
Reel/Frame 025568/0588 →
RELEASE OF SECURITY INTEREST Recorded Dec 23, 2010
From: PRIVATEBANK AND TRUST COMPANY
To: FILTRAN, LLC
Reel/Frame 025563/0005 →
SECURITY AGREEMENT Recorded Apr 16, 2010
From: FILTRAN LLC
To: THE PRIVATEBANK AND TRUST COMPANY
Reel/Frame 024233/0948 →
CHANGE OF NAME Recorded Apr 15, 2010
From: SPX FILTRAN LLC
To: FILTRAN LLC
Reel/Frame 024233/0432 →
MERGER Recorded Mar 11, 2010
From: SPX FILTRAN LLC
To: FILTRAN LLC
Reel/Frame 024067/0222 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2009
From: SPX CORPORATION
To: SPX FILTRAN LLC
Reel/Frame 022427/0913 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 17, 2006
From: MEDDOCK, LEROY J.; MEDDOCK, MARK T.; SWANSON, KENNETH
To: SPX CORPORATION (A DELAWARE CORP.)
Reel/Frame 018134/0411 →
Continuity (3)
Division 1133583200 · Jan 20, 2006
Continuation In Part 1073497700 · Dec 15, 2003
Related Publication 20060278570A1 · Dec 14, 2006