Patent ID: 8518142

Claim:
A filter element comprising: (a) a single seamless media pack; the media pack having first and second opposite ends and first and second lateral sides extending between the first and second ends; the media pack having pleats extending between the first and second ends; (i) the media pack having a first cross-section defined between the first and second lateral sides; (ii) the first cross-section having at least one outward projection that defines an internal radius of at least ¼ inch; (A) the media pack being fanned around the internal radius, a plurality of the pleats extending around the internal radius in non-touching engagement with each other around the internal radius; (b) a first end cap secured to the first end of the media pack; (c) a second end cap secured to the second end of the media pack; (d) a frame member secured to the first end cap, second end cap, the first lateral side, and the second lateral side; and (e) a gasket held by the frame member; the gasket extending along the first end cap, second end cap, first lateral side, and second lateral side.