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 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.
Claims11
A filter cartridge for orienting into a housing having an inner core piece and filter support;
- the filter cartridge comprising:
- (a) a closed endcap having an inside wall defining a first open volume;
- (b) a tubular construction of filter media secured to the closed endcap;
- (c) an open endcap secured to the filter media at an end opposite of the closed endcap;
- and
- (d) means for disengaging the inner core piece from the filter support, when the filter cartridge is oriented in the housing.
A filter cartridge for orienting into a housing having an open mouth removably covered by a service cover;
- the filter cartridge comprising:
- (a) a first endcap having an inside wall defining a 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;
- and
- (d) means for mating with the service cover, when the filter cartridge is oriented in the housing and covered with the service cover.
Dependencies are inferred from the claim text.