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.
Claims17
A method of servicing a filtration assembly including a filter cartridge mounted on a filter head;
- the method comprising:
- (a) providing a filter cartridge having alternately circumferentially spaced connecting sections and non-connecting sections surrounding a filter media construction;
- (b) mounting the filter cartridge on the head by pushing the filter cartridge axially and rotating the filter cartridge less than 90° to engage the connecting sections of the filter cartridge with connecting segments on the filter head;
- and
- (c) while rotating, compressing a seal member on the filter cartridge to form a seal between and against the head and the filter cartridge.
A method of servicing a filtration assembly including a filter cartridge mounted on a filter head;
- the method comprising:
- (a) providing a filter cartridge having connecting sections;
- each connecting section having a plurality of helical profiles extending at a helix angle;
- and each of the helical profiles within each connecting section has a different cross-sectional shape from at least one other helical profile within a respective connecting section;
- the connecting sections surrounding a filter media construction;
- (b) mounting the filter cartridge on the head by pushing the filter cartridge axially and rotating the filter cartridge less than 90° to engage the connecting sections of the filter cartridge with connecting segments on the filter head;
- and
- (c) while rotating, compressing a seal member on the filter cartridge to form a seal between and against the head and the filter cartridge.
A method of servicing a filtration assembly including a filter cartridge mounted on a filter head;
- the method comprising:
- (a) providing a filter cartridge having connecting sections;
- each connecting section having a plurality of helical profiles extending at a helix angle;
- and within each connecting section, a first of the helical profiles being different from at least one other helical profile based on one or more of:
- profile shape, axial spacing, or axial depth;
- the connecting sections surrounding a filter media construction;
- (b) mounting the filter cartridge on the head by pushing the filter cartridge axially and rotating the filter cartridge less than 90° to engage the connecting sections of the filter cartridge with connecting segments on the filter head;
- and
- (c) while rotating, compressing a seal member on the filter cartridge to form a seal between and against the head and the filter cartridge.
Dependencies are inferred from the claim text.