Top load liquid filter assembly, system and methods
AssigneeDonaldson Company, Inc.
InventorsBradley S. Honermann, John R. Hacker, Kathryn A. Legault, Mark S. Emery, Kurt B. Joscher, Jason P. Johnson
Life of this patent
Estimating the term…
Abstract
A top load liquid filter assembly includes a filter lockout mechanism to ensure that the filter base and cover are not connectable unless there is a proper filter cartridge installed therein. The filter system can also include an automatic drain mechanism and a cartridge retention mechanism. One example embodiment further includes an air bleed vent. A filter cartridge usable in the topload liquid filter assembly includes first and second protrusions and cover-gripper members. Methods of use, installing, servicing, and retaining can be practiced.
Claims10
A filter cartridge comprising:
- (a) a first endcap defining a first open volume;
- (i) the first endcap defining a tubular wall lining the first open volume;
- (b) a tubular construction of filter media secured to the first endcap;
- (c) a second endcap secured to the filter media at an end opposite of the first endcap;
- (d) at least a first protrusion and a second protrusion extending from the tubular wall radially inward into the first open volume;
- (i) the first protrusion being spaced from the second protrusion in a vertical direction along the tubular wall;
- (ii) the first protrusion being circumferentially spaced from the second protrusion along the tubular wall;
- and
- (e) at least first and second cover-gripping members extending from the first endcap;
- (i) the first and second cover-gripping members being opposed to each other and being deflectable radially toward and away from each other;
- (ii) the first and second cover-gripping members each being constructed and arranged to mate with a portion of a cover, when the filter cartridge is operably connected to a cover.
Dependencies are inferred from the claim text.