Donaldson Comapny, Inc.

Other

Kurt Joscher

Jason Paul Johnson

David B Harder

Fabrizio Buratto

Claudio Formica

Francesco Marangoni

Luca Piva

Daniel Robert Frembgen

John R Hacker

Brian Edward Tucker

Bradley S Honermann

Mark S Emery

Michael J Gustafson

Kathryn A Legault

Mark C Shepherd

Patricia L Palmby

Jacob L Sanders

Allen Joscher

Amy Joscher

Brent T Harrold

Michael S Courneya

Liquid filter assemblies, features, components and methods are described. In general, a liquid filter cartridge is provided which includes features that help ensure that when the assembly is serviced, the cartridge positioned within the assembly is a proper one, in proper sealing orientation, for appropriate use. Features that can be used to provide for this include: a seal on the filter cartridge that defines a seal pattern non-orthogonal to a plane perpendicular to a central axis of the filter cartridge; and, a member of a projection/receiver arrangement on the filter cartridge which is orientated to engage a portion of a liquid filter assembly, for example a liquid flow collar, to allow sealing when the cartridge is a properly positioned cartridge and a properly configured cartridge. Assembly features are described. Also, a flexible radial projection arrangement providing snap-fit interaction between a cartridge and housing is provided. Methods of assembly and use as described.

Liquid filter assemblies; features; components; and, methods

An air filter cartridge for filtering liquids, such as fuel or oil, can be used in a filter assembly. The air filter cartridge has first and second opposite end caps and filter media extending between the end caps. The first end cap has an air channel with an inlet and an outlet to allow for the bleeding of air from the unfiltered side to the filtered side, while minimizing the amount of liquid allowed to bypass the media. Due to the viscosity differences of air versus liquid (e.g. a hydrocarbon such as fuel or oil), a long vent with at least one thin axis impedes liquid flow to a greater degree than air flow through the same vent.

Filter cartridge having air vent with restriction, assemblies, and methods

A filter cartridge includes a threaded sleeve having a seal holder recess and seal member. The filter cartridge is for removably threading onto a filter head that includes threads for connection to the filter cartridge by way of the threaded sleeve. The filter head includes a ramp that engages the seal member to form a seal. The force needed to make the seal is a torque of less than 10 N-m.

Liquid filter arrangement and methods

A valve arrangement includes a valve shaft having a fluid flow bore, and valve gear projections or teeth projecting from the valve shaft, constructed and arranged to receive a force to rotate the valve shaft. The valve arrangement can be used in a filter assembly having cartridge projections such as gear teeth to mesh with the teeth on the valve gear.

Valve arrangement, liquid filters, filter assemblies, and method

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.

Filter arrangements for liquids and methods of use

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.

Top load liquid filter assembly, system, and methods

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Burnsville, MN, United States of America

Kurt Joscher