US 9,433,881 B2 · Liquid filter assembly; and, methods

Abstract

A liquid filter assembly is provided. The assembly includes a liquid filter cartridge and a housing. The liquid filter cartridge, includes, among other things, first and second, opposite, end caps each having a central aperture therethrough. A seal arrangement including a radially directed seal is mounted on a seal support of the first end cap that projects away from the second end cap. The cartridge includes a seal mount configured to define a seal plane non-orthogonal to a central axis of the cartridge. The housing includes a filter head and a housing sidewall. The filter head includes a filter head having a body, a top cover and a bottom aperture opposite the top cover. The housing extends through the bottom aperture. The cartridge as described is installed in the housing, with an end cap radially sealed against a tube in a bottom of the housing.

Claims16

Dependent claims

A liquid filter cartridge comprising:

(a) primary filter media surrounding a central volume and defining a central axis, and the cartridge having a seal mount positioned adjacent to the filter media configured to define a seal plane non-orthogonal to the central axis;
(b) a first end cap positioned on a first end of the media;
(i) the first end cap having a central aperture therethrough;
(ii) the first end cap including a seal support thereon;
(iii) the seal support projecting in a direction away from the primary filter media;
(iv) a radially directed seal mounted on the seal support of the first end cap and configured to seal against a portion of a filter housing when liquid filter cartridge is installed in the filter housing for use;
(c) a second end cap positioned at an opposite end of the media from the first end cap;
(i) the second end cap having a central aperture therethrough;
(ii) the seal support of the first end cap projecting in a direction away from the second end cap.

6 more elements

A liquid filter assembly comprising:

(a) a housing comprising a filter head and a housing sidewall;
(i) the filter head comprising:
(A) a filter head body;
(B) a top cover removable from the filter head body to define a service opening in the filter head;
and
(C) a bottom aperture positioned opposite the operable top cover and service opening;
(ii) the housing sidewall being positioned to extend through the bottom aperture in a direction opposite the top cover;
(iii) the housing including a bottom end opposite the filter head, the housing including a tube on the bottom end;
(b) a liquid filter cartridge comprising:
(i) primary filter media surrounding a central volume and defining a central axis, and the cartridge having a seal mount positioned adjacent to the filter media configured to define a seal plane non-orthogonal to the central axis;
(ii) a first end cap positioned on a first end of the media;
(A) the first end cap having a central aperture therethrough;
(B) the first end cap including a seal support thereon;
(C) the seal support projecting in a direction away from the primary filter media;
(D) a radially directed seal mounted on the seal support of the first end cap and configured to seal against a portion of the housing when liquid filter cartridge is installed in the housing for use;
(iii) a second end cap positioned at an opposite end of the media from the first end cap;
(A) the second end cap having a central aperture therethrough;
(B) the seal support of the first end cap projecting in a direction away from the second end cap.

15 more elements

Dependencies are inferred from the claim text.

Liquid filter assembly; and, methods

Life of this patent

Liquid filter assembly; and, methods

Life of this patent

Abstract

Claims16