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US 2014/0109534 A1Published application
Air Filter with Tensile Support Member
AssigneeAAF-McQuay Inc.
InventorsM. Aflal Rahmathullah, Scott Mineart, Greg Clements, Michael Montague, Rodger E. Stowe
Life of this patent
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Abstract
An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.
Claims18
An air filter, comprising:
- a pleated filter media having a stiffness of at least about 600 Gurley and extending in a machine direction and in a transverse direction substantially perpendicular to said machine direction,
- said machine direction and said transverse direction define a first plane;
- said pleated filter media extending in said transverse direction from a top to a bottom;
- said pleated filter media having a plurality of pleat valleys continuing substantially uninterrupted from said pleated filter media top to said pleated filter media bottom;
- and
- a frame having an inner perimeter, a frame front surface, a frame rear surface, and a plurality of structural support members;
- wherein said filter media has an unassembled width in said transverse direction that is wider than a width of said inner perimeter of said frame in said transverse direction;
- said plurality of structural support members include a plurality of angled support members angled relative to said transverse direction;
- and
- said plurality of structural support members include at least one tensile support member extending substantially parallel to said transverse direction;
- said filter media interposed between said frame front surface and said frame rear surface.
8 more elements
An air filter, comprising:
- a frame having a front frame surface with a front frame surface opening and a rear frame surface with a rear frame surface opening;
- a pleated filter media having a stiffness of at least about 600 Gurley retained within said frame and a plurality of pleat valleys continuing substantially uninterrupted in a transverse direction from a pleated filter media top to a pleated filter media bottom;
- said frame having a length in a transverse direction across said inner perimeter defining an inner-frame width;
- wherein said pleat width is greater than said inner-frame width;
- wherein at least one of said front frame surface and said rear frame surface has at least one tensile support member and a plurality of angled support members;
- said tensile support member extending substantially parallel to said transverse direction across an air flow opening;
- said plurality of angled support members angled substantially equally relative to said tensile support member.
4 more elements
A method for assembling an air filter having a transverse direction transverse to a machine direction, comprising the steps of:
- providing a frame rear having an outer perimeter forming a closed shape, wherein said frame further comprises a plurality of angled support members and one or more tensile support members;
- providing a frame front having an outer perimeter forming a closed shape;
- applying an adhesive to said frame rear;
- inserting a filter media having a stiffness of at least about 600 Gurley into said frame rear, thereby placing said filter media in contact with said adhesive of said frame rear, wherein said filter media is oversized in a transverse direction relative to one or more of said frame rear and said frame front;
- placing one or more of said frame rear and frame front in tension by stretching at least one of said frame rear and said frame front until substantially dimensionally equivalent in the transverse direction to said filter media;
- and
- attaching one or more attachment members of said frame front to one or more attachment members of said frame rear, thereby framing said filter media.
4 more elements
Dependencies are inferred from the claim text.