Filter arrangements for liquids and methods of use
AssigneeDonaldson Company, Inc.
InventorsAndrew F. Johnson, Michael J. Gustafson, Brent L. Anderson, Timothy D. Sporre
Life of this patent
Estimating the term…
Abstract
A filter assembly includes: a filter cartridge having filter media and a first end cap holding an axially disposed seal member, an end arrangement sized to engage against the filter cartridge and form a seal with the seal member, and an anti-rotation arrangement constructed and arranged to prevent the filter cartridge and cover arrangement from rotation relative to each other.
Claims20
A filter assembly comprising:
- (a) a filter cartridge having filter media and a first end cap holding an axially disposed seal member;
- (b) an end arrangement sized to engage against the filter cartridge and form a seal with the seal member;
- and
- (c) an anti-rotation arrangement constructed and arranged to prevent the filter cartridge and end arrangement from rotation relative to each other.
A filter assembly comprising:
- (a) an end arrangement including:
- (i) a hub having a surrounding wall circumscribing an opening;
- (ii) the surrounding wall having a terminal axial surface;
- (iii) a hub outer ring of circumferentially spaced projections;
- and
- (b) a filter cartridge having filter media and an end cap arrangement holding a seal member;
- the end cap arrangement nesting with the hub outer ring to rotationally secure the filter cartridge and the end arrangement.
A method of connecting a filter assembly to a filter end arrangement, the filter end arrangement being one of a filter head or filter cover;
- the filter assembly including a filter cartridge removably mounted in a housing;
- the filter cartridge having an axially mounted seal member;
- the filter end arrangement having a plurality of end arrangement projections positioned to engage the filter cartridge;
- the method comprising:
- (a) positioning the filter cartridge such that the seal member is at least partially received within the end arrangement projections, allowing the filter cartridge to move axially toward the end arrangement;
- (b) after the filter cartridge moves axially toward the end arrangement, engaging a thread on the housing with a thread on the end arrangement;
- and
- (c) rotating the housing relative to the end arrangement to threadably connect the filter assembly to the filter end arrangement such that the end arrangement projections radially support a side of the filter cartridge seal member.
Dependencies are inferred from the claim text.