Filter arrangements for liquids and methods of use
AssigneeDonaldson Company, Inc.
InventorsKurt B. Joscher, Mark C. Shepherd, Patricia L. Palmby
Life of this patent
Estimating the term…
Abstract
A filter cartridge has media construction, a housing, and a first end construction. The first end constructions includes an outer radial wall with circumferentially spaced connecting sections; each connecting section having a plurality of helical profiles extending at a helix angle. The filter cartridge is removably attached to a filter head, which has mating connecting segments. A bowl cartridge assembly is also provided including connecting sections with a plurality of helical profiles.
Claims11
A filter cartridge for use in a bowl cartridge assembly;
- the filter cartridge comprising:
- (a) a filter media construction having a first end and an opposite second end;
- (b) a first end cap adhered to and against the first end of the media construction;
- wherein the first end cap includes an outer radial wall and an axial wall;
- the axial wall covering the first end of the media construction;
- (c) a first plurality of circumferentially spaced radial projections extending from the outer radial wall;
- (i) the first plurality of radial projections having a first longitudinal length with a terminal end sized to engage a rim of a filter bowl, when the cartridge is inserted into a filter bowl;
- (ii) the first plurality of radial projections having a least one lateral portion oriented to circumferentially abut a part of the filter bowl when the cartridge is inserted into a filter bowl;
- and
- (d) at least one spring-loaded detent extending axially outwardly from the axial wall of the first end cap wherein the at least one spring-loaded detent is circumferentially aligned with at least one of the radial projections of the first plurality of radial projections.
A filter cartridge for use in a bowl cartridge assembly;
- the filter cartridge comprising:
- (a) a filter media construction having a first end and an opposite second end;
- (b) a first end construction adjacent to the first end of the media construction;
- wherein the first end construction includes an outer radial wall and an axial wall;
- the axial wall covering the first end of the media construction;
- (c) a first plurality of circumferentially spaced radial projections extending from the outer radial wall;
- (i) the first plurality of radial projections having a first longitudinal length with a terminal end sized to engage a rim of a filter bowl, when the cartridge is inserted into a filter bowl;
- (ii) the first plurality of radial projections having a least one lateral portion oriented to circumferentially abut a part of the filter bowl when the cartridge is inserted into a filter bowl;
- and
- (d) at least one spring-loaded detent extending axially outwardly from the axial wall of the first end construction;
- (i) each spring-loaded detent includes a leaf spring attached to the axial wall of the first end construction.
Dependencies are inferred from the claim text.