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US 2015/0090656 A1Published application
Liquid Filter Arrangement; Components; and, Methods
AssigneeDonaldson Company, Inc.
InventorsBrian Mandt, Brent Gulsvig, John Hacker
Life of this patent
Estimating the term…
Abstract
Liquid filter arrangements are described and shown. The arrangements generally include a filter member comprising a shell enclosing a filter cartridge. Unique features for interface between the enclosed filter cartridge and the shell are provided. Also provided are unique features for interaction between the cartridge and a filter head, in use.
Claims18
A liquid filter member comprising:
- (a) an outer shell having a sidewall defining an interior, a closed end;
- and, an open end;
- (b) a top plate non-removably secured within the shell such that fluid is prevented from passing between the top plate and the shell from the interior of the shell to the exterior of the shell;
- (i) the top plate having an upper portion and a lower portion;
- (A) the top plate upper portion having an inwardly threaded region by which the filter member can be mounted on a filter head for use;
- and,
- (B) the top plate having an upper tip;
- (c) an upper lip of the shell being folded over a surface of the top plate upper tip to extend at an acute angle of at least 30° relative to a portion of the sidewall of the outer shell;
- (d) a seal member positioned between the top plate and the shell;
- (e) a filter cartridge non-removably positioned within the interior of the shell, positioned with media at a location between a portion of the top plate and the closed end of the shell;
- (i) the first cartridge comprising pleated media extending between first and second ends;
- (ii) the first end having an open end piece thereon;
- and,
- (iii) the second end having a closed end piece thereon;
- and,
- (f) a radially outwardly directed seal member positioned to form a seal, upon installation, at a location in axial overlap with the first end of the media.
13 more elements
A liquid filter member configured to be threadably mounted on a filter head, the liquid filter member comprising:
- (a) an outer shell having a sidewall defining an interior and a first, open, end;
- (b) a filter cartridge non-removably positioned within the interior of the shell;
- (i) the filter cartridge comprising pleated media extending between first and second end caps;
- (A) the media defining pleat tip inner and out perimeters;
- (ii) the first end cap being an open end cap with a central aperture;
- (c) an axially outwardly projecting seal mount;
- (i) the filter cartridge including a seal mounted on the axially outwardly projecting seal mount and configured to form an outwardly directed radial seal against a seal surface supported by the filter head when the liquid filter member is disposed in position for use;
- and,
- (ii) the seal mount being positioned to support the seal at a location to form a seal diameter with the seal surface at a location in axial overlap with an end of the media at a location spaced between an inside perimeter of the media and an outside perimeter of the media;
- and,
- (iii) the second end cap being closed;
- and,
- (d) a top plate non-removably secured within the shell such that fluid is prevented from passing between the top plate and the shell from the interior of the shell to the exterior of the shell, the top plate having an upper portion and a lower portion;
- (i) the top plate upper portion having an inwardly threaded region by which the filter member can be mounted on a filter head for use;
- and,
- (ii) the top plate lower portion having a portion positioned in axial overlap, with an end of the media;
- (iii) the top plate including:
- (A) a first region, having the inside threaded region, positioned below the top of the shell;
- and,
- (B) a second region extending axially away from the first region and away from the first, open, end of the outer shell.
17 more elements
A liquid filter member according to claim 19 wherein:
- (a) the upper lip of the shell is folded to extend at an acute angle of at least 30° relative to a portion of the sidewall of the outer shell.
Dependencies are inferred from the claim text.