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US 8,273,143 B2Granted
Air cleaner, replaceable filter cartridges, and methods
AssigneeDonaldson Company, Inc.
InventorsPaul R. Coulonvaux, Johnny Craessaerts
Life of this patent
Estimating the term…
Abstract
An air cleaner assembly, a main filter element, and a method for servicing an air cleaner assembly are provided according to the present invention. The air cleaner assembly includes an air cleaner housing and a main filter element. The air cleaner housing can include a safety liner or support having a closed end cap that supports the main filter element, and helps reduce the tendency of the main filter element to rotate during use of the air cleaner assembly.
Claims22
An air cleaner assembly comprising:
- (a) an air cleaner housing comprising a main housing having a first end with an axial air flow outlet, and a second, open end;
- the main housing body including:
- (i) an inner, annular, main filter sealing member;
- (ii) an inner, annular, safety filter sealing member;
- (iii) a safety liner secured to and extending from the main housing first end and comprising an open support structure and a closed end cap;
- and
- (iv) an air flow inlet;
- (b) a safety filter element extending over the safety liner and removable therefrom, the safety filter element comprising a first end comprising an annular sealing member for engaging the inner annular safety filter sealing member, a second end for removably engaging the closed end cap of the safety liner, and safety media structure extending from the first end to the second end and covering the safety liner support structure;
- (c) a main filter element comprising:
- (i) first and second opposite ends, wherein the first end has an air flow exit aperture therethrough;
- (ii) an annular extension of filter media extending between the first and the second ends;
- (iii) a first, open, end cap adjacent the first end of the main filter element, the media being embedded in the first, open end cap, and the first, open end cap having a perimeter with a radial seal;
- (iv) a second, closed, end cap adjacent the second end of the main filter element and having a surface supported by the closed end cap of the safety liner;
- and
- (d) a service cover secured to the housing open end.
12 more elements
An air cleaner assembly comprising:
- (a) an air cleaner housing comprising a main housing having a first end with an axial air flow outlet, and a second, open end, the main housing body including:
- (i) a main filter sealing member;
- (ii) a safety liner secured to and extending from the main housing first end and comprising an open support structure and a closed end cap;
- and
- (iv) an air flow inlet;
- (b) a safety filter element extending over the safety liner and removable therefrom the safety filter element comprising a first end positioned adjacent the main housing first end;
- a second, open, end for removably engaging the closed end cap of the safety liner;
- and safety media structure extending from the first end to the second end and over the safety liner support structure;
- (c) a main filter element comprising:
- (i) first and second opposite ends, wherein the first end has an air flow exit aperture therethrough;
- (ii) an annular extension of filter media extending between the first and the second ends;
- (iii) a first, open, end cap adjacent the first end of the main filter element, the media being embedded in the first, open end cap, and the first, open end cap including a radial seal;
- (iv) a second, closed, end cap adjacent the second end of the main filter element and having a surface supported by the closed end cap of the safety liner;
- and
- (d) a service cover secured to the housing open end.
12 more elements
An air cleaner assembly comprising:
- (a) an air cleaner housing comprising a main housing having a first end with an axial air flow outlet, and a second, open end, the main housing body including:
- (i) an inner, annular, main filter sealing member;
- (ii) a safety liner extending from the main housing first end and comprising an open support structure and a closed end cap;
- and
- (iii) an air flow inlet;
- (b) a safety filter element removeably positioned in extension over the safety liner, and removable therefrom, the safety filter element comprising a first end comprising a member for engaging the safety liner adjacent the main housing first end, a second end for removably engaging the closed end cap of the safety liner, and safety media extending from the first end to the second end and covering the safety liner support structure;
- (c) a main filter element comprising:
- (i) first and second opposite ends, wherein the first end has an air flow exit aperture therethrough;
- (ii) an annular extension of filter media extending between the first and the second ends;
- (iii) a first, open, end cap adjacent the first end of the main filter element, the media being embedded in the first, open end cap, and the first, open end cap having a perimeter with a radial seal;
- (iv) a second, closed, end cap adjacent the second end of the main filter element and having a surface supported by the closed end cap of the safety liner;
- and
- (d) a service cover secured to the housing open end.
10 more elements
Dependencies are inferred from the claim text.