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US 2025/0050256 A1Published application
Liquid filter arrangement and methods
AssigneeDonaldson Company, Inc.
InventorsMichael J. Gustafson, Kurt Joscher, David B. Harder, Brian Tucker
Life of this patent
Estimating the term…
Abstract
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.
Claims12
A filter cartridge comprising:
- (a) a housing having an open mouth and an interior volume;
- (b) a filter media construction in the housing interior volume;
- (c) a sleeve non-removably attached to the housing adjacent to the open mouth and having a first end and a second end opposite of the first end;
- the sleeve having a seal holder recess with a radially extending base surface and a recess wall;
- (i) a housing seal member being positioned within the seal holder recess;
- (ii) the base surface having a radial base length extending from the recess wall;
- (iii) the sleeve having a threaded section and a radially extending stop member between the threaded section and the second end;
- (d) an outwardly radially projecting rib adjacent to the first end of the sleeve forming a ceiling of the recess;
- (i) the rib having a length less than 80% of the radial base length;
- and
- (ii) the housing seal member projecting radially outwardly farther than the rib.
8 more elements
Dependencies are inferred from the claim text.