Air cleaner having anti-rotational arrangement and methods
AssigneeDonaldson Company, Inc.
InventorsPaul R. Coulonvaux, Johan G. Dewit, Tom Hg Vranken
Life of this patent
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Abstract
An air cleaner having a housing body and a removable cover and a filter element, in which the cover and the filter element rotationally interfere with each other by engagement between an inside surface of the cover and an outer radial periphery of the filter element. A filter element includes a pair of end caps, filter media, and an outer wall on the end cap circumscribing the filter media, in which the outer wall is non-circular. A method of installing a filter element into a housing includes orienting a cover over an element and a housing body by engaging an inside surface of the cover and an outer radial periphery of the filter element to rotationally interfere with each other.
Claims16
A filter element comprising:
- a tubular extension of filter media defining an open filter interior;
- a first end cap secured to the tubular extension of filter media;
- the first end cap defining an opening in communication with the open filter interior;
- a second end cap secured to the tubular extension of filter media opposite of the first end cap;
- the second end cap being a closed end cap with no openings therethrough;
- the second end cap including an outer wall circumscribing the tubular extension of filter media;
- the outer wall being non-circular;
- the outer wall defining a plurality of apices;
- the outer wall including a first plurality of ribs;
- and
- the first plurality of ribs being fewer in number than the plurality of apices;
- each of the ribs being aligned with a respective one of the plurality of apices.
An air cleaner comprising:
- a housing body and a separate cover removable from the housing body;
- the cover having an inside surface;
- a filter element operably mounted in the housing body;
- the filter element having an outer wall with an outer radial periphery;
- the cover being mounted over the body and the filter element;
- the cover and the filter element rotationally interfering with each other by engagement between the cover inside surface and the filter element outer radial periphery;
- the cover inside surface defining a plurality of apices and the outer wall defining a plurality of apices;
- and
- the cover inside surface defining at least one venting slot aligned with at least one of the plurality of apices in the cover inside surface.
Dependencies are inferred from the claim text.